Epoxy system SR8200 / SD7406 (Fast)

 

Laminating epoxy system SR8200 / SD7406 with fast hardener

Each kilo includes 0.73 kg resin + 0.27 kg hardener

The SR8200 / SD7406 system exhibits very good mechanical properties, high elongation, fatigue resistance, low odor during application and relatively low cost. The maximum temperature resistance is at least 90 ^oC/ 194 ^oF; however, some post curing is required in order to have service temperature of 60 - 70 ^oC/ 140 - 158 ^oF. Typical applications include bows, masts and long service bending products.

Fast hardener SD7406:
Offers fast hardening at low temperature, low surface pollution, demolding of small parts after one night at 20 - 25 ^oC/ 68 - 77 ^oF and excellent mechanical properties after post curing at 40 to 60 ^oC/ 104 to 140 ^oF.

PROPERTIES
Physical properties of SR8200 epoxy resin:
Aspect / colour: Yellowish liquid
Viscosity (mPa.s) at 20 ^oC/ 68 ^oF: 2900 ± 600
Density at 20 ^oC/ 68 ^oF: 1.175 ± 0.01

Physical properties of SD7406 hardener:
Aspect / colour: Yellowish liquid
Viscosity (mPa.s) at 25 ^oC/ 77 ^oF: 650 ± 120
Density at 20 ^oC/ 68 ^oF: 1.04 ± 0.01

Mix properties of SR8200 / SD7406 system:
Weight ratio: 100 / 37 g
Volume ratio: 100 / 42 ml
Mix viscosity at 20 ^oC/ 68 ^oF: 1200 ± 250

Reactivity of SR8200 / SD7406 system:
Pot life for 200 g mix at 20 ^oC/ 68 ^oF: 46'
Exothermic temperature for 100 g mix at 20 ^oC/ 68 ^oF: > 200 ^oC/ 392 ^oF
Time to reach exothermic peak for 100 g mix at 20 ^oC/ 68 ^oF: 54'