ARALDITE® LY 1135-1 / ARADUR® 917 / ACCELERATOR 960-1

ARALDITE® LY 1135-1 / ARADUR® 917 / ACCELERATOR 960-1 is a heat-cure, ready-to-use resin designed for high-performance applications. It offers excellent thermal properties, good mechanical properties, a long potlife, and low viscosity, ensuring reliable performance in demanding industrial processes.

RTU Product Type: Impregnating Resin System

Product End Uses: Composites

Chemical Family: Epoxy & Epoxy Derivatives

Composites Processing Methods: Filament Winding, Pressure Molding, Pultrusion

Features: Excellent Thermal Properties, Good Impregnation Capability, Good Mechanical Properties, High Performance, Long Potlife, Low Viscosity

Cure Method: Heat Cure

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Enhanced TDS

Identification & Functionality

Features & Benefits

Ready-to-Use Product Features
Processing
  • Filament Winding
  • Pultrusion
  • Pressure Moulding

Applications & Uses

Composites Processing Methods
Cure Method
Product End Uses
Application Information

High performance composite parts

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.

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Properties

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.

Casting Process
Gelation either

2 - 4h at 80°C or 1 - 3h at 90°C

Post-cure either

4 - 8h at 120°C or 2 - 8h at 140°C

Cured Properties

Key

Value

Unit

Test Method

Test Condition

Glass transition temperature (Tg) 92 - 98 °C IEC 1006, DSC, 10 K/MIN

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Tensile strength 88 - 95 MPa ISO 527

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Elongation at tensile strength 5 - 6 % ISO 527

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Ultimate strength 87 - 94 MPa ISO 527

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Ultimate elongation 5.5 - 6.5 % ISO 527

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Tensile modulus 3100 - 3300 MPa ISO 527

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Flexural strength 150 - 162 MPa ISO 178

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Elongation at flexural strength 6 - 7 % ISO 178

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Ultimate strength 148 - 160 MPa ISO 178

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Ultimate elongation 6.5 - 8 % ISO 178

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Flexural modulus 3050 - 3200 MPa ISO 178

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Fracture toughness K1C 0.57 - 0.65 MPa√m ISO 13586

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Fracture energy G1C 90 - 115 J/m² ISO 13586

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Poisson’s ratio 0.35 - -

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Shear strength 60 - 65 MPa ASTM D 2344

Gelation for 4 hours at 80 °C and post-cured for 4 hours at 140 °C

Processing Method
  • Filament Winding
  • Pultrusion
  • Pressure Moulding

Safety & Health

First 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.

Handling Precautions

Personal hygiene
Safety precautions at workplace
protective clothing : yes
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 solvents
Disposal of spillage : Soak up with sawdust or cotton waste and deposit in plastic-lined bin
Ventilation
of workshop : Renew air 3 to 5 times an hour
of workplaces : Exhaust fans. Operatives should avoid inhaling vapours

Storage & Handling

Storage Conditions

Provided that Resin LY 1135-1, ARADUR® 917 and Accelerator 960-1 are stored in a dry place in their original, properly closed containers at the storage temperature mentioned in the MSDS 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 1135-1 which has crystallized and looks cloudy can be restored to its original state by heating to 60 - 80 °C.