Huntsman - ARALDITE CY 5622 / ARADUR® HY 1235 / ACCELERATOR DY 062 / Filler Silica Flour (Silanized)

Enhanced TDS

Identification & Functionality

Chemical Family: Epoxy & Epoxy Derivatives
RTU Product Type: Casting Resin
Technologies: Composite Materials
Product Families: Composite Materials — Resin Systems
Casting

Features & Benefits

Ready-to-Use Product Features

Arc Resistant,

Excellent Dielectric Properties,

Excellent Environmental Resistance,

Good Erosion Resistance,

Good Mechanical Properties,

Good Tracking Resistance,

Good UV Resistance,

Hydrophobic,

Low Viscosity,

Thermal Shock Resistant

Key Properties

Hydrophobicity transfer and recovery
High mechanical properties
Excellent dielectric properties
Very good thermal shock resistance
High resistance to erosion under UV-radiation
High tracking and arc resistance
Extended life-time of insulation
Railway safety EN 45545-2 R22 HL3 / R23 HL3
The use of silanised silica flour ensures stable dielectric properties under outdoor humid conditions

Product Features

Hydrophobic cycloaliphatic system with liquid hardener, excellent thermal cycle resistance, hydrophobicity transfer and recovery, extended insulator lifetime, utility approvals.

Applications & Uses

Application Area

Bushings,

Dry Type Distribution Transformers,

Instrument Transformers,

Insulators

Composites Processing Methods

Automatic Pressure Gelation (APG),

Gravity Casting

Product End Uses

Apparatus Components,

Bushings,

Dry Type Distribution Transformers,

Electrical Insulation Application,

High Voltage Insulation,

Instrument Transformers,

Insulators,

Outdoor Electrical Insulation,

Markets

Electrical & Electronics,

Industrial

Applications

Electrical & Electronics — Parts & Components

Sensors & Actuators

Electrical & Electronics — Wire & Cable

Power Transmission & Distribution,

Jacketing & Insulation

Industrial — Power, Water & Utilities

Electrical Protection,

Power & Utilities,

Renewable Energy

Additional Information

The system is also available as XB 5957 + XB 5958 (pre-filled)
Following color pastes may be used:

Araldite DW 9134 BD (gray)
Araldite DW 0126 brown

Processing Information

General instructions for preparing liquid resin systems

Long pot life is desirable in the processing of any casting resin system. Mix all of the components together very thoroughly at room temperature or slightly above and under vacuum. Intensive wetting of the filler is extremely important. Proper mixing will result in:

better flow properties and reduced tendency for shrinkage
lower internal stresses and therefore improved mechanical properties of cast components
improved partial diskharge behavior in high voltage applications.

For the mixing of medium- to high viscosity casting resin systems and for mixing at lower temperatures, we recommend special degassing mixers that may produce additional selfheating of 10-15 °C as a result of friction. For low viscosity casting resin systems, conventional mixers are usually sufficient.
In larger plants, the individual components (resin, hardener) are mixed with the respective quantities of fillers and additives under vacuum. Metering pumps then feed these premixes to the final mixer or a continuous mixer. The individual premixes can be stored at elevated temperature (about 60°C) for up to about 1 week, depending on formulation. Intermittent agitation during storage is advisable to prevent filler sedimentation.
Mixing time can vary from 0.5 to 3 hours, depending on mixing temperature, quantity, mixing equipment and the particular application. In case of outdoor application particularly thorough wetting is essential. The required vacuum is 0.5 to 8 mbar. The vapor pressure of the individual components should be taken into account.
In the case of dielectrically highly stressed pbw, we recommend checking the quality consistency and predrying of the filler. Their moisture content should be < 0.2%.

Specific Instructions

The resin component CY 5622 is supplied with a gel-like consistency. It is liquefied by stirring. To adjust a suited viscosity range of the resin, the temperature of the resin at the begin of the stirring process, should be above 6 °C, and below 30°C. In case of longer exposure to temperatures below 6 °C the temperature should be controlled inside in the middle of the packaging before stirring. If the temperature inside the bulk of the product is measured to be below 6 °C the packaging should be heated smoothly from out side (best from below) with max. 30 °C. As this warming process may take up to several weeks depending on size of packaging and temperature conditions, the lead times and storage space should be adjusted in winter accordingly. The resin heats up due to the stirring, the maximum termperature should be 40 °C. A special mixing equipment is needed, as it has to be introduced via the hole of the container. To achieve sufficient and homogenous stirring effect, the stirrer should extend inside the container and a special design is needed for rectangular containers like the ecobulk. Such design has to ensure that all liquid in edges is sufficiently homogenized. A dynamic torque controlled motor will be needed as the stirring has to start smoothly. (Recommendations for suited stirrer equipment are available on request.) Transferring the gel-like structure into a normal, low viscous liquid might take several hours. During consumption of the resin, it should be stirred 5 – 15 minutes / hour.
No special preparation are needed for the hardener.

For an optimized processing we recommend to prepare first individual premixtures of resin and hardener with the filler. It is recommend to apply a temperature of 50-60°C for the preparation of the mixtures. As CY 5622 contains rheological additives, in most of the cases there is no need to add additional anti-settling additives (for the resin part).

Conventional batch mixers should be cleaned once a week or at the end of work. For longer interruptions of work, the pipes of the mixing and metering installllations should be cooled and cleaned with the resin component to prevent sedimentation and/or undesired viscosity increase. Interruptions that extend over a week-end (approx. 48h) without cleaning are possible if the pipes are cooled at temperatures below 18°C.

Mold temperature
Accelerator content
APG process: 130 - 150°C
Conventional vacuum casting: 80 - 100°C

Demolding times (depending on mold temperature and casting volume)
APG process: 10 - 30 min
Conventional vacuum casting: 2 - 4 h

Cure conditions (minimum post curing)
APG process: 10h at 140°C
Conventional vacuum casting: 16h at 140°C

For any outdoor application, we recommend the use of silanised silica flour; for example Silbond W12-EST (Quarzwerke GmbH, Frechen, D). Again it is essential to achieve a thorough crosslinking. To determine whether crosslinking has been carried to completion and the final properties are optimal, it is recommended to carry out relevant measurements on the actual object or to measure the glass transition temperature.

Processing Methods

Automatic pressure gelation process (APG)
Conventional gravity casting process under vacuum

Properties

Physical Form

Liquid,

Paste

Processing (Guideline Values)

System Preparation

General instructions for preparing liquid resin systems

Long pot life is desirable in the processing of any casting resin system. Mix all of the components together very thoroughly at room temperature or slightly above and under vacuum. Intensive wetting of the filler is extremely important.
Proper mixing will result in: - better flow properties and reduced tendency to shrinkage - lower internal stresses and therefore improved mechanical properties on object - improved partial discharge behaviour in high voltage applications.
For the mixing of medium- to high viscous casting resin systems and for mixing at lower temperatures, we recommend special thin film degassing mixers that may produce additional self-heating of 10-15 °C as a result of friction.
For low viscous casting resin systems, conventional anchor mixers are usually sufficient. In larger plants, two pre-mixers are used to mix the individual components (resin, hardener) with the respective quantities of fillers and additives under vacuum.
Metering pumps then feed these premixes to the final mixer or a continuous mixer. The individual premixes can be stored at elevated temperature (about 60°C) for up to about 1 week, de- pending on formulation.
Intermittent agitation during storage is advisable to prevent filler sedimentation. Mixing time can vary from 0.5 to 3 hours, depending on mixing temperature, quantity, mixing equipment and the particular application. The required vacuum is 0.5 to 8 mbar.
The vapor pressure of the individual components should be taken into account. In the case of dielectrically highly stressed parts, we recommend checking the quality consistency and pre-drying of the filler. Their moisture content should be < 0.2%.

Specific Instructions

The resin component CY 5622 is supplied with a gel-like consistency. It is liquefied by stirring. To adjust a suited viscosity range of the resin, the temperature of the resin at the begin of the stirring process, should be above 6 °C, and below 30°C. In case of longer exposure to temperatures below 6 °C the temperature should be controlled inside in the middle of the packaging before stirring. If the temperature inside the bulk of the product is measured to be below 6 °C the packaging should be heated smoothly from out side (best from below) with max. 30 °C. As this warming process may take up to several weeks depending on size of packaging and temperature conditions, the lead times and storage space should be adjusted in winter accordingly. The resin heats up due to the stirring, the maximum termperature should be 40 °C. A special mixing equipment is needed, as it has to be introduced via the hole of the container. To achieve sufficient and homogenous stirring effect, the stirrer should extend inside the container and a special design is needed for rectangular containers like the ecobulk. Such design has to ensure that all liquid in edges is sufficiently homogenised. A dynamic torque controlled motor will be needed as the stirring has to start smoothly. (Recommendations for suited stirrer equipment are available on request.) Transferring the gel-like structure into a normal, low viscous liquid might take several hours. During consumption of the resin, it should be stirred 5 – 15 minutes / hour.

No special preparation are needed for the hardener. For an optimized processing we recommend to prepare first individual premixtures of resin and hardener with the filler. It is recommend to apply a temperature of 50-60°C for the preparation of the mixtures. As CY 5622 contains rheological additives, in most of the cases there is no need to add additional anti-settling additives (for the resin part). Conventional batch mixers should be cleaned once a week or at the end of work. For longer interruptions of work, the pipes of the mixing and metering installations should be cooled and cleaned with the resin component to prevent sedimentation and/or undesired viscosity increase. Interruptions that extend over a week-end (approx. 48h) without cleaning are possible if the pipes are cooled at temperatures below 18°C.

Property	Value	Unit	Condition
Mold Temperature (APG process)	130 - 150	°C	APG process
Mold Temperature (Conventional vacuum casting)	80 - 100	°C	Conventional vacuum casting
Accelerator Content	-	%	-
Demolding Time (APG process)	10 - 30	min	APG process
Demolding Time (Conventional vacuum casting)	2 - 4	hours	Conventional vacuum casting
Cure Conditions (APG process)	10h at 140°C	hours	APG process (minimum post curing)
Cure Conditions (Conventional vacuum casting)	16h at 140°C	hours	Conventional vacuum casting

For any outdoor application, we recommend the use of silanised silica flour; for example Silbond W12-EST (Quarzwerke GmbH, Frechen, D). Again it is essential to achieve a thorough crosslinking. To determine whether crosslinking has been carried to completion and the final properties are optimal, it is recommended to carry out relevant measurements on the actual object or to measure the glass transition temperature.

Process Viscosity

Fig.5.1:Viscosity increase at 40, 60 and 80°C ; (measurements with Rheomat 115 A, ; MS DIN 125, Shear rate D = 6.65 s^-1)

Fig.5.2: Initial viscosity as a function of temperature, System B : 66 % filler content (measurements with Rheomat 115 A , MS DIN 125, Shear rate D = 6.65 s-1)

Gelation and Cure Times

Fig.5.3: Geltime measured as a function of temperature, System B : 66 % filler content (measurements with Gelnorm Instrument / DIN 16945)

Note

Araldite CY 5622 is an emulsion which is stabilized by a gelification agent. Prior to use, this gel should be liquefied by stirring. Aradur HY 1235 BD is sensitive to humidity. It is therefore necessary to store this product in sealed original containers.

Regulatory & Compliance

Quality Standards: EN45545 R22-HL3

Technical Details & Test Data

Processing Information

<html>General instructions for preparing liquid resin systems 
 
<ul> 
<li>Long pot life is desirable in the processing of any casting resin system. Mix all of the components together very thoroughly at room temperature or slightly above and under vacuum. Intensive wetting of the filler is extremely important. Proper mixing will result in:</li> 
</ul> 
 
<ol> 
<li>better flow properties and reduced tendency for shrinkage</li> 
<li>lower internal stresses and therefore improved mechanical properties of cast components</li> 
<li>improved partial diskharge behavior in high voltage applications.</li> 
</ol> 
 
<ul> 
<li>For the mixing of medium- to high viscosity casting resin systems and for mixing at lower temperatures, we recommend special degassing mixers that may produce additional selfheating of 10-15 &deg;C as a result of friction. For low viscosity casting resin systems, conventional mixers are usually sufficient.</li> 
<li>In larger plants, the individual components (resin, hardener) are mixed with the respective quantities of fillers and additives under vacuum. Metering pumps then feed these premixes to the final mixer or a continuous mixer. The individual premixes can be stored at elevated temperature (about 60&deg;C) for up to about 1 week, depending on formulation. Intermittent agitation during storage is advisable to prevent filler sedimentation.</li> 
<li>Mixing time can vary from 0.5 to 3 hours, depending on mixing temperature, quantity, mixing equipment and the particular application. In case of outdoor application particularly thorough wetting is essential. The required vacuum is 0.5 to 8 mbar. The vapor pressure of the individual components should be taken into account.</li> 
<li>In the case of dielectrically highly stressed pbw, we recommend checking the quality consistency and predrying of the filler. Their moisture content should be &lt; 0.2%.</li> 
</ul> 
 
Specific Instructions 
 
The resin component CY 5622 is supplied with a gel-like consistency. It is liquefied by stirring. To adjust a suited viscosity range of the resin, the temperature of the resin at the begin of the stirring process, should be above 6 &deg;C, and below 30&deg;C. In case of longer exposure to temperatures below 6 &deg;C the temperature should be controlled inside in the middle of the packaging before stirring. If the temperature inside the bulk of the product is measured to be below 6 &deg;C the packaging should be heated smoothly from out side (best from below) with max. 30 &deg;C. As this warming process may take up to several weeks depending on size of packaging and temperature conditions, the lead times and storage space should be adjusted in winter accordingly. The resin heats up due to the stirring, the maximum termperature should be 40 &deg;C. A special mixing equipment is needed, as it has to be introduced via the hole of the container. To achieve sufficient and homogenous stirring effect, the stirrer should extend inside the container and a special design is needed for rectangular containers like the ecobulk. Such design has to ensure that all liquid in edges is sufficiently homogenized. A dynamic torque controlled motor will be needed as the stirring has to start smoothly. (Recommendations for suited stirrer equipment are available on request.) Transferring the gel-like structure into a normal, low viscous liquid might take several hours. During consumption of the resin, it should be stirred 5 &ndash; 15 minutes / hour. 
No special preparation are needed for the hardener. 
 
For an optimized processing we recommend to prepare first individual premixtures of resin and hardener with the filler. It is recommend to apply a temperature of 50-60&deg;C for the preparation of the mixtures. As CY 5622 contains rheological additives, in most of the cases there is no need to add additional anti-settling additives (for the resin part). 
 
Conventional batch mixers should be cleaned once a week or at the end of work. For longer interruptions of work, the pipes of the mixing and metering installllations should be cooled and cleaned with the resin component to prevent sedimentation and/or undesired viscosity increase. Interruptions that extend over a week-end (approx. 48h) without cleaning are possible if the pipes are cooled at temperatures below 18&deg;C. 
 
Mold temperature 
Accelerator content 
APG process: 130 - 150&deg;C 
Conventional vacuum casting: 80 - 100&deg;C 
 
 
Demolding times (depending on mold temperature and casting volume) 
APG process: 10 - 30 min 
Conventional vacuum casting: 2 - 4 h 
 
 
Cure conditions (minimum post curing) 
APG process: 10h at 140&deg;C 
Conventional vacuum casting: 16h at 140&deg;C 
 
For any outdoor application, we recommend the use of silanised silica flour; for example Silbond W12-EST (Quarzwerke GmbH, Frechen, D). Again it is essential to achieve a thorough crosslinking. To determine whether crosslinking has been carried to completion and the final properties are optimal, it is recommended to carry out relevant measurements on the actual object or to measure the glass transition temperature. 
 
&nbsp; 
 
System Preparation 
 
&nbsp; 
 
General instructions for preparing liquid resin systems 
 
<ul> 
<li>Long pot life is desirable in the processing of any casting resin system. Mix all of the components together very thoroughly at room temperature or slightly above and under vacuum. Intensive wetting of the filler is extremely important.</li> 
<li>Proper mixing will result in: - better flow properties and reduced tendency to shrinkage - lower internal stresses and therefore improved mechanical properties on object - improved partial discharge behaviour in high voltage applications.</li> 
<li>For the mixing of medium- to high viscous casting resin systems and for mixing at lower temperatures, we recommend special thin film degassing mixers that may produce additional self-heating of 10-15 &deg;C as a result of friction.</li> 
<li>For low viscous casting resin systems, conventional anchor mixers are usually sufficient. In larger plants, two pre-mixers are used to mix the individual components (resin, hardener) with the respective quantities of fillers and additives under vacuum.</li> 
<li>Metering pumps then feed these premixes to the final mixer or a continuous mixer. The individual premixes can be stored at elevated temperature (about 60&deg;C) for up to about 1 week, de- pending on formulation.</li> 
<li>Intermittent agitation during storage is advisable to prevent filler sedimentation. Mixing time can vary from 0.5 to 3 hours, depending on mixing temperature, quantity, mixing equipment and the particular application. The required vacuum is 0.5 to 8 mbar.</li> 
<li>The vapor pressure of the individual components should be taken into account. In the case of dielectrically highly stressed parts, we recommend checking the quality consistency and pre-drying of the filler. Their moisture content should be &lt; 0.2%.</li> 
</ul> 
 
&nbsp; 
 
Specific Instructions 
 
&nbsp; 
 
The resin component CY 5622 is supplied with a gel-like consistency. It is liquefied by stirring. To adjust a suited viscosity range of the resin, the temperature of the resin at the begin of the stirring process, should be above 6 &deg;C, and below 30&deg;C. In case of longer exposure to temperatures below 6 &deg;C the temperature should be controlled inside in the middle of the packaging before stirring. If the temperature inside the bulk of the product is measured to be below 6 &deg;C the packaging should be heated smoothly from out side (best from below) with max. 30 &deg;C. As this warming process may take up to several weeks depending on size of packaging and temperature conditions, the lead times and storage space should be adjusted in winter accordingly. The resin heats up due to the stirring, the maximum termperature should be 40 &deg;C. A special mixing equipment is needed, as it has to be introduced via the hole of the container. To achieve sufficient and homogenous stirring effect, the stirrer should extend inside the container and a special design is needed for rectangular containers like the ecobulk. Such design has to ensure that all liquid in edges is sufficiently homogenised. A dynamic torque controlled motor will be needed as the stirring has to start smoothly. (Recommendations for suited stirrer equipment are available on request.) Transferring the gel-like structure into a normal, low viscous liquid might take several hours. During consumption of the resin, it should be stirred 5 &ndash; 15 minutes / hour. 
 
No special preparation are needed for the hardener. For an optimized processing we recommend to prepare first individual premixtures of resin and hardener with the filler. It is recommend to apply a temperature of 50-60&deg;C for the preparation of the mixtures. As CY 5622 contains rheological additives, in most of the cases there is no need to add additional anti-settling additives (for the resin part). Conventional batch mixers should be cleaned once a week or at the end of work. For longer interruptions of work, the pipes of the mixing and metering installations should be cooled and cleaned with the resin component to prevent sedimentation and/or undesired viscosity increase. Interruptions that extend over a week-end (approx. 48h) without cleaning are possible if the pipes are cooled at temperatures below 18&deg;C. 
 
&nbsp; 
 
<table border=""> 
<thead> 
<tr> 
<th scope="">Property</th> 
<th scope="">Value</th> 
<th scope="">Unit</th> 
<th scope="">Condition</th> 
</tr> 
</thead> 
<tbody> 
<tr> 
<td>Mold Temperature (APG process)</td> 
<td>130 - 150</td> 
<td>&deg;C</td> 
<td>APG process</td> 
</tr> 
<tr> 
<td>Mold Temperature (Conventional vacuum casting)</td> 
<td>80 - 100</td> 
<td>&deg;C</td> 
<td> 
Conventional vacuum casting 
</td> 
</tr> 
<tr> 
<td>Accelerator Content</td> 
<td>-</td> 
<td>%</td> 
<td>-</td> 
</tr> 
<tr> 
<td>Demolding Time (APG process)</td> 
<td>10 - 30</td> 
<td>min</td> 
<td>APG process</td> 
</tr> 
<tr> 
<td>Demolding Time (Conventional vacuum casting)</td> 
<td>2 - 4</td> 
<td>hours</td> 
<td> 
Conventional vacuum casting 
</td> 
</tr> 
<tr> 
<td>Cure Conditions (APG process)</td> 
<td>10h at 140&deg;C</td> 
<td>hours</td> 
<td> 
APG process (minimum post curing) 
</td> 
</tr> 
<tr> 
<td>Cure Conditions (Conventional vacuum casting)</td> 
<td>16h at 140&deg;C</td> 
<td>hours</td> 
<td> 
Conventional vacuum casting 
</td> 
</tr> 
</tbody> 
</table> 
 
&nbsp; 
 
For any outdoor application, we recommend the use of silanised silica flour; for example Silbond W12-EST (Quarzwerke GmbH, Frechen, D). Again it is essential to achieve a thorough crosslinking. To determine whether crosslinking has been carried to completion and the final properties are optimal, it is recommended to carry out relevant measurements on the actual object or to measure the glass transition temperature. 
 
&nbsp; 
 
Process Viscosity 
 
&nbsp; 
 
Fig.5.1:Viscosity increase at 40, 60 and 80&deg;C ; (measurements with Rheomat 115 A, ; MS DIN 125, Shear rate D = 6.65 s-1) 
 
&nbsp; 
 
Fig.5.2: Initial viscosity as a function of temperature, System B : 66 % filler content (measurements with Rheomat 115 A , MS DIN 125, Shear rate D = 6.65 s-1) 
 
&nbsp; 
 
&nbsp; 
 
Gelation and Cure Times 
 
&nbsp; 
 
Fig.5.3: Geltime measured as a function of temperature, System B : 66 % filler content (measurements with Gelnorm Instrument / DIN 16945) 
 
&nbsp; 
 
&nbsp; 
 
Mechanical and Physical Properties 
 
&nbsp; 
 
<table border=""> 
<tbody> 
<tr> 
<td>Property</td> 
<td>Value</td> 
<td>Unit</td> 
<td>Test Method</td> 
<td>Condition</td> 
</tr> 
<tr> 
<td>Tensile Strength</td> 
<td>80 - 105</td> 
<td>MPa</td> 
<td>ISO 527</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Elongation at Break</td> 
<td>1.20 - 1.60</td> 
<td>%</td> 
<td>ISO 527</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>E Modulus from Tensile Test</td> 
<td>11&#39;300 - 11&#39;700</td> 
<td>MPa</td> 
<td>ISO 527</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Flexural Strength</td> 
<td>130 - 150</td> 
<td>MPa</td> 
<td>ISO 178</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Surface Strain</td> 
<td>1.35 - 1.65</td> 
<td>%</td> 
<td>ISO 178</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>E Modulus from Flexural Test</td> 
<td>11&#39;300 - 11&#39;800</td> 
<td>MPa</td> 
<td>ISO 178</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Double Torsion Test</td> 
<td>2.40 - 2.60</td> 
<td>-</td> 
<td>CG 216</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Critical Stress Intensity Factor (KIC)</td> 
<td>490 - 530</td> 
<td>MPa&middot;m&sup1;/&sup2;</td> 
<td>-</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Specific Energy at Break (GIC)</td> 
<td>100 - 115</td> 
<td>J/m&sup2;</td> 
<td>-</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Glass Transition Temperature (DSC)</td> 
<td>32</td> 
<td>&deg;C</td> 
<td>IEC 61006</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Coefficient of Linear Thermal Expansion</td> 
<td>131</td> 
<td>K⁻&sup1;</td> 
<td>ISO 11359-2</td> 
<td> 
Mean value for temperature range: 20 - 80&deg;C 
</td> 
</tr> 
<tr> 
<td>Thermal Conductivity</td> 
<td>0.11</td> 
<td>W/m&middot;K</td> 
<td>Similar to ISO 8894</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Water Absorption (Specimen: 50x50x4 mm)</td> 
<td>0.10 - 0.15</td> 
<td>% by wt.</td> 
<td>ISO 62</td> 
<td> 
10 days at 23&deg;C, Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Water Absorption (Specimen: 50x50x4 mm)</td> 
<td>0.07 - 0.12</td> 
<td>% by wt.</td> 
<td>ISO 62</td> 
<td> 
60 min at 100&deg;C, Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Oxygen Index</td> 
<td>32</td> 
<td>%</td> 
<td>ISO 4589-2</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Smoke Density</td> 
<td>131</td> 
<td>Ds(max)</td> 
<td>ISO 5659-2</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Smoke Toxicity</td> 
<td>0.11</td> 
<td>CIT</td> 
<td>NF X 70-100</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Flammability (Thickness of specimen: 3 mm)</td> 
<td>HB</td> 
<td>-</td> 
<td>UL 94</td> 
<td> 
Specimen: 3 mm, Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Flammability (Thickness of specimen: 13 mm)</td> 
<td>V1</td> 
<td>-</td> 
<td>UL 94</td> 
<td> 
Specimen: 13 mm, Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Decomposition Temperature (DTA)</td> 
<td>&le; 350</td> 
<td>&deg;C</td> 
<td>DTA</td> 
<td> 
Heating rate: 10 K/min, Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Density (Filler Load 65% by wt.)</td> 
<td>1.85 - 1.95</td> 
<td>g/cm&sup3;</td> 
<td>ISO 1183</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Filler Content</td> 
<td>66</td> 
<td>%</td> 
<td>-</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
</tbody> 
</table> 
 
&nbsp; 
 
Electrical Properties 
 
&nbsp; 
 
<table border=""> 
<tbody> 
<tr> 
<td>Property</td> 
<td>Value</td> 
<td>Unit</td> 
<td>Test Method</td> 
<td>Condition</td> 
</tr> 
<tr> 
<td>Breakdown Strength</td> 
<td>21 - 26</td> 
<td>kV/mm</td> 
<td>IEC 60243-1</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>HV Diffusion Breakdown Strength</td> 
<td>-</td> 
<td>kV/mm</td> 
<td>IEC 60243-1</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Temperature of Specimen After Test</td> 
<td>&lt; 24</td> 
<td>&deg;C</td> 
<td>DIN 57 441</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>HV Arc Resistance</td> 
<td>184 - 186</td> 
<td>Class</td> 
<td>IEC 61621</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Tracking Resistance (Test Solution A)</td> 
<td>&gt; 600</td> 
<td>s</td> 
<td>IEC 60112</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Tracking Resistance (Test Solution B)</td> 
<td>&gt; 600 M</td> 
<td>s</td> 
<td>IEC 60112</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>HV Tracking Resistance</td> 
<td>1B4.5</td> 
<td>-</td> 
<td>IEC 60587</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
<tr> 
<td>Electrolytic Corrosion</td> 
<td>A-1</td> 
<td>grade</td> 
<td>IEC 60426</td> 
<td> 
Cured for 6h at 80&deg;C + 10h at 140&deg;C 
</td> 
</tr> 
</tbody> 
</table> 
 
&nbsp; 
 
&nbsp; 
 
Fig.7.1: Loss factor (tan &delta;) and dielectric constant (&epsilon;r) as a function of temperature, System B : 66 % filler content (measurement frequency: 50 Hz / IEC 60250 
 
&nbsp; 
 
&nbsp; 
 
Fig.7.2: Volume resistivity (&rho;) as a function of temperature System B : 66 % filler content (measurement voltage: 1000 V / IEC 60093) 
 
&nbsp; 
 
&nbsp; 
 
Thermal Shock Resistance 
Temperature shock test conditions: 
&bull; Test specimen with embedded sharp edged metal parts (edge radius: 2mm) 
&bull; Molding time: 15 min 
&bull; Mold temperature: 135-140&deg;C 
&bull; Post curing: 10h / 140&deg;C 
 
Test result: 
 
<ul> 
<li>Average crack temperature: -63&deg;C</li> 
<li>(For comparison: CY 184 / HY 1235 BD/ DY 062 / 66 % W12EST: -12 &deg;C)</li> 
</ul> 
 
Fig. 6 Temperature shock test 
 
&nbsp; 
 
&quot; </html>

Processing Information

General instructions for preparing liquid resin systems

Long pot life is desirable in the processing of any casting resin system. Mix all of the components together very thoroughly at room temperature or slightly above and under vacuum. Intensive wetting of the filler is extremely important. Proper mixing will result in:

better flow properties and reduced tendency for shrinkage
lower internal stresses and therefore improved mechanical properties of cast components
improved partial diskharge behavior in high voltage applications.

For the mixing of medium- to high viscosity casting resin systems and for mixing at lower temperatures, we recommend special degassing mixers that may produce additional selfheating of 10-15 °C as a result of friction. For low viscosity casting resin systems, conventional mixers are usually sufficient.
In larger plants, the individual components (resin, hardener) are mixed with the respective quantities of fillers and additives under vacuum. Metering pumps then feed these premixes to the final mixer or a continuous mixer. The individual premixes can be stored at elevated temperature (about 60°C) for up to about 1 week, depending on formulation. Intermittent agitation during storage is advisable to prevent filler sedimentation.
Mixing time can vary from 0.5 to 3 hours, depending on mixing temperature, quantity, mixing equipment and the particular application. In case of outdoor application particularly thorough wetting is essential. The required vacuum is 0.5 to 8 mbar. The vapor pressure of the individual components should be taken into account.
In the case of dielectrically highly stressed pbw, we recommend checking the quality consistency and predrying of the filler. Their moisture content should be < 0.2%.

Specific Instructions

Mold temperature
Accelerator content
APG process: 130 - 150°C
Conventional vacuum casting: 80 - 100°C

Demolding times (depending on mold temperature and casting volume)
APG process: 10 - 30 min
Conventional vacuum casting: 2 - 4 h

Cure conditions (minimum post curing)
APG process: 10h at 140°C
Conventional vacuum casting: 16h at 140°C

System Preparation

General instructions for preparing liquid resin systems

Long pot life is desirable in the processing of any casting resin system. Mix all of the components together very thoroughly at room temperature or slightly above and under vacuum. Intensive wetting of the filler is extremely important.
Proper mixing will result in: - better flow properties and reduced tendency to shrinkage - lower internal stresses and therefore improved mechanical properties on object - improved partial discharge behaviour in high voltage applications.
For the mixing of medium- to high viscous casting resin systems and for mixing at lower temperatures, we recommend special thin film degassing mixers that may produce additional self-heating of 10-15 °C as a result of friction.
For low viscous casting resin systems, conventional anchor mixers are usually sufficient. In larger plants, two pre-mixers are used to mix the individual components (resin, hardener) with the respective quantities of fillers and additives under vacuum.
Metering pumps then feed these premixes to the final mixer or a continuous mixer. The individual premixes can be stored at elevated temperature (about 60°C) for up to about 1 week, de- pending on formulation.
Intermittent agitation during storage is advisable to prevent filler sedimentation. Mixing time can vary from 0.5 to 3 hours, depending on mixing temperature, quantity, mixing equipment and the particular application. The required vacuum is 0.5 to 8 mbar.
The vapor pressure of the individual components should be taken into account. In the case of dielectrically highly stressed parts, we recommend checking the quality consistency and pre-drying of the filler. Their moisture content should be < 0.2%.

Specific Instructions

The resin component CY 5622 is supplied with a gel-like consistency. It is liquefied by stirring. To adjust a suited viscosity range of the resin, the temperature of the resin at the begin of the stirring process, should be above 6 °C, and below 30°C. In case of longer exposure to temperatures below 6 °C the temperature should be controlled inside in the middle of the packaging before stirring. If the temperature inside the bulk of the product is measured to be below 6 °C the packaging should be heated smoothly from out side (best from below) with max. 30 °C. As this warming process may take up to several weeks depending on size of packaging and temperature conditions, the lead times and storage space should be adjusted in winter accordingly. The resin heats up due to the stirring, the maximum termperature should be 40 °C. A special mixing equipment is needed, as it has to be introduced via the hole of the container. To achieve sufficient and homogenous stirring effect, the stirrer should extend inside the container and a special design is needed for rectangular containers like the ecobulk. Such design has to ensure that all liquid in edges is sufficiently homogenised. A dynamic torque controlled motor will be needed as the stirring has to start smoothly. (Recommendations for suited stirrer equipment are available on request.) Transferring the gel-like structure into a normal, low viscous liquid might take several hours. During consumption of the resin, it should be stirred 5 – 15 minutes / hour.

Property	Value	Unit	Condition
Mold Temperature (APG process)	130 - 150	°C	APG process
Mold Temperature (Conventional vacuum casting)	80 - 100	°C	Conventional vacuum casting
Accelerator Content	-	%	-
Demolding Time (APG process)	10 - 30	min	APG process
Demolding Time (Conventional vacuum casting)	2 - 4	hours	Conventional vacuum casting
Cure Conditions (APG process)	10h at 140°C	hours	APG process (minimum post curing)
Cure Conditions (Conventional vacuum casting)	16h at 140°C	hours	Conventional vacuum casting

Process Viscosity

Fig.5.1:Viscosity increase at 40, 60 and 80°C ; (measurements with Rheomat 115 A, ; MS DIN 125, Shear rate D = 6.65 s^-1)

Fig.5.2: Initial viscosity as a function of temperature, System B : 66 % filler content (measurements with Rheomat 115 A , MS DIN 125, Shear rate D = 6.65 s-1)

Gelation and Cure Times

Fig.5.3: Geltime measured as a function of temperature, System B : 66 % filler content (measurements with Gelnorm Instrument / DIN 16945)

Mechanical and Physical Properties

Property	Value	Unit	Test Method	Condition
Tensile Strength	80 - 105	MPa	ISO 527	Cured for 6h at 80°C + 10h at 140°C
Elongation at Break	1.20 - 1.60	%	ISO 527	Cured for 6h at 80°C + 10h at 140°C
E Modulus from Tensile Test	11'300 - 11'700	MPa	ISO 527	Cured for 6h at 80°C + 10h at 140°C
Flexural Strength	130 - 150	MPa	ISO 178	Cured for 6h at 80°C + 10h at 140°C
Surface Strain	1.35 - 1.65	%	ISO 178	Cured for 6h at 80°C + 10h at 140°C
E Modulus from Flexural Test	11'300 - 11'800	MPa	ISO 178	Cured for 6h at 80°C + 10h at 140°C
Double Torsion Test	2.40 - 2.60	-	CG 216	Cured for 6h at 80°C + 10h at 140°C
Critical Stress Intensity Factor (KIC)	490 - 530	MPa·m¹/²	-	Cured for 6h at 80°C + 10h at 140°C
Specific Energy at Break (GIC)	100 - 115	J/m²	-	Cured for 6h at 80°C + 10h at 140°C
Glass Transition Temperature (DSC)	32	°C	IEC 61006	Cured for 6h at 80°C + 10h at 140°C
Coefficient of Linear Thermal Expansion	131	K⁻¹	ISO 11359-2	Mean value for temperature range: 20 - 80°C
Thermal Conductivity	0.11	W/m·K	Similar to ISO 8894	Cured for 6h at 80°C + 10h at 140°C
Water Absorption (Specimen: 50x50x4 mm)	0.10 - 0.15	% by wt.	ISO 62	10 days at 23°C, Cured for 6h at 80°C + 10h at 140°C
Water Absorption (Specimen: 50x50x4 mm)	0.07 - 0.12	% by wt.	ISO 62	60 min at 100°C, Cured for 6h at 80°C + 10h at 140°C
Oxygen Index	32	%	ISO 4589-2	Cured for 6h at 80°C + 10h at 140°C
Smoke Density	131	Ds(max)	ISO 5659-2	Cured for 6h at 80°C + 10h at 140°C
Smoke Toxicity	0.11	CIT	NF X 70-100	Cured for 6h at 80°C + 10h at 140°C
Flammability (Thickness of specimen: 3 mm)	HB	-	UL 94	Specimen: 3 mm, Cured for 6h at 80°C + 10h at 140°C
Flammability (Thickness of specimen: 13 mm)	V1	-	UL 94	Specimen: 13 mm, Cured for 6h at 80°C + 10h at 140°C
Decomposition Temperature (DTA)	≤ 350	°C	DTA	Heating rate: 10 K/min, Cured for 6h at 80°C + 10h at 140°C
Density (Filler Load 65% by wt.)	1.85 - 1.95	g/cm³	ISO 1183	Cured for 6h at 80°C + 10h at 140°C
Filler Content	66	%	-	Cured for 6h at 80°C + 10h at 140°C

Electrical Properties

Property	Value	Unit	Test Method	Condition
Breakdown Strength	21 - 26	kV/mm	IEC 60243-1	Cured for 6h at 80°C + 10h at 140°C
HV Diffusion Breakdown Strength	-	kV/mm	IEC 60243-1	Cured for 6h at 80°C + 10h at 140°C
Temperature of Specimen After Test	< 24	°C	DIN 57 441	Cured for 6h at 80°C + 10h at 140°C
HV Arc Resistance	184 - 186	Class	IEC 61621	Cured for 6h at 80°C + 10h at 140°C
Tracking Resistance (Test Solution A)	> 600	s	IEC 60112	Cured for 6h at 80°C + 10h at 140°C
Tracking Resistance (Test Solution B)	> 600 M	s	IEC 60112	Cured for 6h at 80°C + 10h at 140°C
HV Tracking Resistance	1B4.5	-	IEC 60587	Cured for 6h at 80°C + 10h at 140°C
Electrolytic Corrosion	A-1	grade	IEC 60426	Cured for 6h at 80°C + 10h at 140°C

Fig.7.1: Loss factor (tan δ) and dielectric constant (εr) as a function of temperature, System B : 66 % filler content (measurement frequency: 50 Hz / IEC 60250

Fig.7.2: Volume resistivity (ρ) as a function of temperature System B : 66 % filler content (measurement voltage: 1000 V / IEC 60093)

Thermal Shock Resistance
Temperature shock test conditions:
• Test specimen with embedded sharp edged metal parts (edge radius: 2mm)
• Molding time: 15 min
• Mold temperature: 135-140°C
• Post curing: 10h / 140°C

Test result:

Average crack temperature: -63°C
(For comparison: CY 184 / HY 1235 BD/ DY 062 / 66 % W12EST: -12 °C)

Fig. 6 Temperature shock test

Safety & Health

First Aid: Contamination of the eyes by resin, hardener or casting mix should be treatedimmediately by flushing with clean, running water for 10 to 15 minutes. A doctor should then be consulted.
Material smeared or splashed on the skinshould be dabbed off, and the contaminated area then washed and treated with a cleansing cream. A doctor should be consulted in the event of severe irritation or burns. Contaminated clothing should be changed immediately.
Anyone taken ill after inhalingvapors should be moved out of doors immediately. In all cases of doubt call for medical assistance.
Industrial Hygiene: Mandatory and recommended industrial hygiene procedures should be followed whenever the products are being handled and processed.

Storage & Handling

Storage Conditions: The components have to be stored in tightly sealed and dry original containers according to the storage conditions on the product label. Under these conditions, the shelf life will correspond to the expiration date stated on the label. After this date, the product may be processed only following reanalysis. Partly emptied containers should be closed tightly immediately after use.

Aradur HY 1235 BD is sensitive to humidity. It is therefore necessary to store this product in sealed original containers. A low temperatures (appr. < 2 °C) one component of the hardener HY 1235 BD might crystallize. In such case, the closed container should be prewarmed at 40 to max. 70°C during 1 – 7 d, depending on the size of the package. If it is stirred at the end of that period for faster dissolution of crystals, the container should be opened only as short time as possible to prevent uptake of moisture.

Other

Application Information


	Value	Units	Test Method / Conditions
Mix Ratio	0.045 %(W)	%(W)	Accelerator : Resin
Mix Ratio	3.5 %(W)	%(W)	Filler : Resin
Mix Ratio	0.82 %(W)	%(W)	Hardener : Resin

ARALDITE® CY 5622 / ARADUR® HY 1235 / ACCELERATOR DY 062 / Filler Silica Flour (Silanized)

Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Properties

Regulatory & Compliance

Technical Details & Test Data

Safety & Health

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