Enhanced TDS
Identification & Functionality
- Chemical Family
- RTU Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Product Features
- Anhydride-Cured, low-viscosity standard matrix system with extremely long pot life.
- The reactivity of the system is adjustable by variation of the accelerater content.
- The system is easy to process, has good fibre impregnation properties and exhibits excellent mechanical, dynamic and thermal properties.
- It has an excellent chemical resistance especially to acids at temperatures up to 80 °C.
Applications & Uses
- Composites Processing Methods
- Cure Method
Properties
- Physical Form
- Notes
Gel Time : The values shown are for small amounts of pure resin/hardener mix. In composite structures the gel time can differ significantly from the given values depending on the fibre content and the laminate thickness.
Processing Properties :
Typical Cure CyclesCondition Cure Stage 2 - 4 h at 80 °C Gelation or 1 - 3 h at 90 °C 4 - 8 h at 120 °C Post Cure or 2 - 8 h at 140 °C or 2 - 8 h at 160 °C Note: Cure temperatures in excess of about 130 °C may cause brown discoloration but do not impair the properties of the product.
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Regulatory & Compliance
- Certifications & Compliance
Technical Details & Test Data
- Mixing Ratio
We recommend that the components are weighed with an accurate balance to prevent mixing inaccuracies which can affect the properties of the matrix system. The components should be mixed thoroughly to ensure homogeneity. It is important that the side and the bottom of the vessel are incorporated into the mixing process. When processing large quantities of mixture the pot life will decrease due to exothermic reaction. It is advisable to divide large mix quantities into several smaller containers.
- Processing Recommendation
To simplify the mixing process the resin can be preheated to about 30 °C to 50 °C before adding the cold hardener. Hardener and accelerator can be premixed, thus allowing the use of two component mixing/metering equipment. The mix of hardener and accelerator has a shelf life of several days. The processing of the system at elevated temperatures of 30 °C to 40 °C shows the best results. The gelation temperature should not be higher than absolutely necessary. A high gelation temperature induces high shrinkage and generates internal stresses.
- Product Processing Instructions
- Pultrusion
- Wet laminating
- Pressure Molding
- Properties of The Cured, Neat Formulation
Unless otherwise stated, the processing schedule for the samples tested was gelation for 4 hours at 80 °C and post-Cured for 8 hours at 140 °C.
ISO 11357-2, DSC, 10 K/MIN
Cure Condition Glass Transition Temperature, DSC [°C] Glass Transition Temperature, TMA [°C] 4 h 80 °C + 4 h 120 °C 140 - 144 125 - 128 4 h 80 °C + 8 h 120 °C 144 - 148 125 - 128 4 h 80 °C + 4 h 140 °C 145 - 150 130 - 135 4 h 80 °C + 8 h 140 °C 148 - 153 135 - 145 4 h 80 °C + 4 h 160 °C 150 - 155 140 - 145 4 h 80 °C + 8 h 160 °C 150 - 155 140 - 145 Tensile Test (ISO 527)
Property Unit Value Tensile strength MPa 83 - 93 Elongation at tensile strength % 4.2 - 5.6 Ultimate strength MPa 80 - 90 Ultimate elongation % 5.0 - 7.0 Tensile modulus MPa 3100 - 3300 Flexural Test (ISO 178)
Condition Property Unit Value Dry Flexural strength MPa 125 - 135 Deflection at max load mm 10 - 18 10 days in H₂O at 23 °C Flexural strength MPa 110 - 120 Deflection at max load mm 8 - 18 60 min in H₂O/100 °C Flexural strength MPa 125 - 135 Deflection at max load mm 10 - 18 Fracture Properties – Bend Notch Test (ISO 13586)
Property Unit Value Fracture toughness K₁C MPa√m 0.56 - 0.6 Fracture energy G₁C J/m² 88 - 96 Water Absorption (ISO 62)
Condition Unit Value 1 day H₂O at 23 °C % 0.10 - 0.15 10 days H₂O at 23 °C % 0.30 - 0.40 30 min H₂O at 100 °C % 0.10 - 0.15 60 min H₂O at 100 °C % 0.15 - 0.20 Coefficient Of Linear Thermal Expansion (ISO 11359-2)
Condition Unit Value α from 20 - 100 °C 10⁻⁶/K 55 - 57 α from 100 - 130 °C 10⁻⁶/K 67 - 70 Poisson's Ratio
Unit Value μ 0.35 - Properties of The Cured, Reinforced Formulation
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Unless otherwise stated, the figures given are for pressed laminate samples comprising 16 layers (4 mm) of E-glass fabric 1:1, 280 - 300 g/m2 , fibre volume content 42 - 47 %.
Flexural Test (ISO 178)
Condition Property Unit Value Dry Flexural strength MPa 520 - 550 Deflection at max load mm 5 - 6 Flexural modulus MPa 16500 - 16700 10 days in H₂O 23 °C Flexural strength MPa 390 - 410 Deflection at max load mm 4 - 5 60 min in H₂O/100 °C Flexural strength MPa 460 - 480 Deflection at max load mm 5 - 6 Tensile Test (ISO 527)
Property Unit Value Tensile strength MPa 345 - 375 Ultimate elongation % 1 - 2 Tensile modulus MPa 25500 - 26000 Interlaminar Shear Strength (ASTM D 2344)
Property Unit Value Shear strength MPa 75 - 77 Laminate thickness mm 6.4 Fibre volume content % 60 Water Absorption (ISO 62)
Condition Unit Value 1 day H₂O at 23°C % 0.15 - 0.20 10 days H₂O at 23°C % 0.25 - 0.30 30 min H₂O at 100°C % 0.01 - 0.05 60 min H₂O at 100°C % 0.03 - 0.07 TENSILE, COMPRESSIVE AND TORSIONAL TEST (TCT)
Fibre Reinforcement Details:
Property E-glass Carbon HT Roving 1200 tex, silane finish Torayca T 300 B - 6000 - 50 B
Fibre volume content 67 % 64 % Gelation temperature 90 °C 90 °C Post-Cure 8 h at 140 °C 8 h at 140 °C Transverse Tensile Test
Property Unit E-glass Carbon HT Tensile strength MPa 48 - 55 77 - 85 Tensile strain % 0.25 - 0.33 0.9 - 1.0 Elastic modulus MPa 18000 - 20000 9300 - 9900 Transverse Compressive Test
Property Unit E-glass Carbon HT Compressive strength MPa 165 - 175 190 - 206 Compressive strain at break % 1.2 - 1.4 2.7 - 3.4 Elastic modulus MPa 20000 - 22000 9700 - 9900 Torsional Test
Property Unit E-glass Carbon HT Shear strength MPa 77 - 82 76 - 80 Shear angle % 2.7 - 3.1 3.3 - 4.0 Shear modulus MPa 6100 - 7100 6000 - 6300
Safety & Health
- Handling Precautions
Personal hygiene Safety precautions at workplace protective clothing overalls gloves essential arm protectors recommended when skin contact likely goggles/safety glasses yes Skin protection before starting work Apply barrier cream to exposed skin after washing Apply barrier or nourishing cream Cleansing of contaminated skin Dab off with absorbent paper, wash with warm water
and alkali-free soap, then dry with disposable towels.
Do not use solventsDisposal of spillage Soak up with sawdust or cotton waste and deposit in
plastic-lined binVentilation of workshop Renew air 3 to 5 times an hour Ventilation of workplaces Exhaust fans. Operatives should avoid inhaling
vapoursFirst Aid : Contamination of the eyes by resin, hardener or mix should be treated immediately by flushing with clean, running water for 10 to 15 minutes. A doctor should then be consulted. Material smeared or splashed on the skin should be dabbed off, and the contaminated area then washed and treated with a cleansing cream (see above). A doctor should be consulted in the event of severe irritation or burns. Contaminated clothing should be changed immediately. Anyone taken ill after inhaling vapours should be moved out of doors immediately. In all cases of doubt call for medical assistance.
Storage & Handling
- Storage Conditions
- Provided that ARALDITE® LY 556, ARADUR 917 and ACCELERATOR DY 070 are stored in a dry place in their original, properly closed containers at the storage temperatures they will have the shelf lives indicated on the labels.
- Partly emptied containers should be closed immediately after use.
- Because ARADUR® 917 is sensitive to moisture, storage containers should be ventilated with dry air only.
- ARALDITE® LY 556 which has crystallized and looks cloudy can be restored to its original state by heating to 60 - 80 °C.