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Epoxy system SR8160 / SD815B4 (Slow)

Epoxy system <br>SR8160 / SD815B4<br>(Slow)
Quantity Prices
(ex. VAT)
1-5 Kg73.57€
6-15 Kg64.08€
16-27 Kg54.59€
≥27.18 Kg47.47€

Flexible epoxy system SR8160 / SD815B4 with slow hardener

Each kilo includes 0.83 kg resin + 0.17 kg hardener

SR8160 / SD815B4 is a system designed for laminating parts that exhibit shock and impact resistance, like the underbody of off road car racing. It may be used alone or as an additive to modify other epoxy systems. Also, it may be used to impregnate the outer layer(s) of laminates (so to take first contact of impacts,) and to achieve anisotropic behavior (in terms of thickness) of a part. In this case special care should be taken so to prevent delamination by making a gradual transition from elastic to rigid matrix. This gradual transition can be achieved by using 2 or 3 progressively lower content ratios (on subsequent fabric layers) of SR8160 system, so to go from pure elastic to more rigid epoxy gradually. A very high ambient temperature is needed for pure SR8160 flexible system to start the hardening reaction.

- 80 to 110 % of elongation at break in tension
- Shock resistance over 150 KJ / m2
- Unfilled and translucent
- Advantages compared to polyurethane:
Does not foam when in contact with humidity
Memory of shape

- Parts under vibrations, shocks, low temperature
- Flexible laminates: Body parts for cars, motorbike, 4X4 etc
- Casting and inclusion (degassing under vacuum)
- Part design / prototyping

Minimum curing cycle:
24 hours at ambient temperature + 6 hours at 40 oC + 10 hours at 60 oC

Physical properties of SR8160 epoxy resin:

Aspect / colour: Yellowish viscous liquid
Viscosity at 20 oC (mPa.s): 7800
Density at 20 oC (kg / l): 1.144

Physical properties of SD815B4 hardener:
Aspect / colour: Clear liquid
Viscosity at 20 oC (mPa.s): 24
Density at 20 oC (kg / l): 0.98

Mix properties of SR8160 / SD815B4 system:
Mix viscosities at 20 oC (m.Pas +- 20 %): 2750
Weight ratio: 100 / 20 g
Volume ratio: 100 / 24 ml

Reactivity of SR8160 / SD815B4 system:
Time taken to achieve exotherm at 30 oC: 4h

Product MDS

Intrastat Number for this product: Epoxy: 39073000, Hardener: 29213091

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