ARALDITE® LY 8605 / ARADUR® 8605

ARALDITE® LY 8605 / ARADUR® 8605 is a two-component, low-viscosity epoxy system developed for use in the production of advanced composites using vacuum-assisted resin transfer molding (VARTM), resin transfer molding (RTM), Seemans Composite Resin Injection Molding Process (SCRIMPSM), or other infusion processes. The low-mixed viscosity and wet-out potential of ARALDITE® LY 8605 / ARADUR® 8605 enhance processability parameters. ARALDITE® LY 8605 / ARADUR® 8605 has intermediate to high-temperature performance. Composites produced with this product can achieve a glass transition of 300°F (149°C) following a post-cure.

RTU Product Type: Resin System (Unspecified)

Product End Uses: Composites

Chemical Family: Epoxy & Epoxy Derivatives

Composites Processing Methods: Infusion, Resin Transfer Molding (RTM), Seemans Composite Resin Injection Molding Process (SCRIMPSM), Vacuum Assisted Resin Transfer Molding (VARTM)

Features: High Temperature Performance, Low Viscosity

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Enhanced TDS

Identification & Functionality

Chemical Family
Epoxy & Epoxy Derivatives
RTU Product Type
Resin System (Unspecified)
Technologies
Composite Materials
Product Families
Composite Materials — Resin Systems
Other Epoxy Systems

Features & Benefits

Ready-to-Use Product Features
High Temperature Performance,
Low Viscosity

Applications & Uses

Composites Processing Methods
Infusion,
Resin Transfer Molding (RTM),
Seemans Composite Resin Injection Molding Process (SCRIMPSM),
Vacuum Assisted Resin Transfer Molding (VARTM)
Product End Uses
Composites

Technical Details & Test Data

Neat System

Typical Cured Properties :
Cured 24 hours at 77 °F (25 °C) plus 2 hours at 250 °F (121 °C) plus 3 hours at 350 °F (177 °C). Tested at 77 °F (25 °C) unless otherwise noted. 

Property ASTM Test Method Test Values
Specific Gravity D-792 1.06
Cubic Inch per Pound   26
Hardness (Shore D) D-2240 89
Ultimate Flexural Strength D-790 12,200
Ultimate Flexural Modulu D-790 380,000
Ultimate Tensile Strength, psi D-638 6,921
Tensile Modulus, psi   366,555
% Elongation   2.5
Tg by DMA, E' onset, dry, °F (°C) D-4065 307 (153)
Tg by DMA, E' onset, wet, °F (°C) D-4065 270 (132)

NOTE: All properties are of neat product form (non-composite) 

Mixing Ratio

Measure each component accurately (± 5%) into clean containers. Thoroughly mix resin and hardener together (minimum 2 minutes) scraping container sidewalls, bottom and mixing stick several times to assure a uniform mix.

Laminate Properties

Typical Cured Properties:
Tested at 77 °F (25 °C) unless otherwise noted.

Property ASTM Test Method Test Values(1) Test Values(2)
Hardness (Shore D) D-2240 89 59,425
Ultimate Flexural Strength, psi D-790 34,520 2.26 x 106
Flexural Modulus, psi D-790 0.879 x 106 317 (159)
Ultimate Tensile Strength, psi D-638 48,133  
Tensile Modulus, psi   2.50 x 106  
Tg by DMA, E' onset, dry, °F (°C) D-4065 301 (150)  
Ultimate Compressive Strength, psi D-695 36,575  
Compressive Modulus, psi   2.87 x 106  
Coefficient of Thermal Expansion D-3386    
In/in/°F -22 to 86 °F (-30° to 30 °C)   7.5 x 106  
In/in/°F 77° to 212 °F (25° to 100 °C)   7.2 x 106  

Lay-up Process:
Panel Type : Approximately. 3 ft. x 2 ft. flat panel
Cloth Type : 8 layers, 1581 glass cloth
Cloth Rotation : 0,90 degree
Procedure : Vacuum bagged, flat panel
Laminate Resin Contact : 32.3 %
(1) Cured 24 hours at 77 °F (25 °C) plus 1 hour at 176 °F (80 °C) plus 8 hours at 284 °F (140 °C).
(2) Cured 24 hours at 77 °F (25 °C) plus 1 hour at 176 °F (80 °C) plus 2 hours at 250 °F (121 °C) plus 2 hours at 300 °F (149 °C) plus 2 hours at 351 °F (177 °C).

Recommended Cure Schedule

24 hours at 77 °F (25 °C) plus 2 hours at 250 °F (121 °C) plus 3 hours at 350 °F (177 °C), unless noted otherwise.
Note: Please note that other Cure schedules may be used to obtain comparable physical properties.

Storage & Handling

Storage Conditions
  • ARALDITE® LY 8605 (Resin) / ARADUR® 8605 (HARDENER) should be stored in a dry place, in the sealed original container, at temperatures between +2°C and +40°C (+35.6°F and +104°F).
  • The product should not be exposed to direct sunlight.
Product Conditioning & Handling
  • Stir well before use. This material will separate.
  • Work in a well ventilated area and use clean, dry tools for mixing and applying For two component system, combine the resin and hardener according to mix ration. Mix together thoroughly and use immediately after mixing. Material temperature should not be below 18 °C (65 °F) when mixing.

Other

Color
Transparent