Epoxy system SR8100 / SD4771 (Ultra slow)

 

Epoxy system SR8100 / SD4771 for injection and infusion with ultra slow hardener

Each kilo includes 0.78 kg resin + 0.22 kg hardener

The SR8100 is a 2 component epoxy system specially formulated for resin transfer processes, such as injection and infusion. This system has a very low viscosity at ambient temperature. The different hardeners allow moulding of small to large parts, with fast demoulding times, high mechanical properties and good price. The cured system gives a temperature resistance up to 80 ^oC (Tg 1). The hardener SD4771 is designed for very thick fibers laminates.

PROPERTIES
Physical properties of SR8100 epoxy resin:
Aspect / colour: Yellow liquid
Viscosity (mPa.s) at 20 ^oC: 1320 (+-260)
Density (g/cm3) at 20 ^oC: 1.158

Physical properties of SD4771 hardener:
Aspect / colour: Light yellow liquid
Viscosity (mPa.s) at 20 ^oC: 11 (+-2)
Density (g/cm3) at 20 ^oC: 0.944

Mix properties of SR8100 / SD4771 system:
Mix viscosity (mPa.s) at 20 ^oC: 400
Mixing ratio by weight: 100 g / 29 g
Mixing ratio by volume: 100 ml / 36 ml

Reactivity of SR8100 / SD4771 system:
Exothermic temperature on 500 g mix (^oC) at 20 ^oC: 200
Time to reach the exothermic peak on 500 g mix at 20 ^oC: 5 h 15'

Time to reach 50 ^oC on 500 g mix at 20 ^oC: 4 h 40'