Enhanced TDS
Identification & Functionality
- Chemical Family
- RTU Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
Applications & Uses
- Composites Processing Methods
- Cure Method
- Product End Uses
Properties
- 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.
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 mixes into several smaller containers.
- Product Processing Instructions
- Pultrusion
- Resin Transfer Molding (RTM)
- Pressure Molding
- Filament Winding
- Properties of The Cured, Neat Formulation
ISO 11357-2, DSC, 10 K/MIN
Cure Schedule Glass Transition Temperature [°C] – LY 556 + HY 5212 4 h 80°C + 4 h 150°C 140 - 145 2 h 80°C + 4 h 160°C 140 - 148 2 h 80°C + 2 h 120°C + 4 h 150°C 141 - 149 ISO 6721, DMA, 2 K/MIN
Cure Schedule Glass Transition Temperature [°C] – LY 556 + HY 5212 2 h 80°C + 2 h 120°C + 4 h 150°C 175 - 185
Flexural Test (ISO 527)
Cure: 2 h 80°C + 2 h 120°C + 4 h 150°C
Property Unit Value Tensile strength MPa 80 - 90 Elongation at tensile strength % 4.5 - 5.0 Ultimate strength MPa 80 - 90 Ultimate elongation % 4.5 - 5.0 Tensile modulus MPa 2800 - 2900 Flexural Test (ISO 178)
Cure: 2 h 80°C + 2 h 120°C + 4 h 150°C
Property Unit Value Flexural strength MPa 130 - 140 Elongation at flexural strength % 6.0 - 7.0 Ultimate strength MPa 130 - 140 Ultimate elongation % 6.0 - 7.0 Flexural modulus MPa 3000 - 3100 Fracture Properties – Bend Notch Test (ISO 13586)
Cure: 2 h 80°C + 2 h 120°C + 4 h 150°C
Property Unit Value Fracture toughness K₁C MPa√m 0.60 - 0.65 Fracture energy G₁C J/m² 140 - 150 - Properties of The Cured, Reinforced Formulation
Short beam: Laminate comprising 12 layers unidirectional
E-glass fabric: 425 g/m²
Laminate thickness: 3.1 – 3.3 mm
Fibre volume content: 63 – 65%Interlaminar Shear Strength (ASTM D 2344)
Cure Schedule Shear Strength [MPa]
2 h 80 °C + 2 h 120 °C + 4 h 150 °C 55 – 56
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 or XB 3473 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.