RBC-4590 resin and AB-440 is a two component, filled, low viscosity, flame-retardant semi flexible epoxy/urethane elastomer system suitable for potting and encapsulation.
The cured system has excellent moisture resistance, electrical properties, and thermal shock resistance. The 1:1 volumetric mix ratio characteristic of this system makes it ideal for automatic mixing and dispensing.
| Part A | Part B | |
| Brookfield Vicosity @ 25 deg, cps | 21,000 | 18,000 |
| Specific Gravity @ 25 deg C | 1.68 | 1.56 |
| Appearance | black | off-white |
Color: black
Hardness, Shore A: 65 A
Specific Gravity @ 25 deg C, mixed: 1.68
Tensile Strength, psi: 460
Elongation, %: 75
Operating Temperature, deg C: -50 to 175 deg C
Mix Ratio:
Part A: 100 parts by weight or 1.0 part by volume
Part B: 84 parts by weight or 1.0 part by volume
Pot Life @ 25 deg C: 11/2 to 2 hrs. (100 gram mass)
@ 25 deg. C: 24 hours
@ 60 deg. C: 1 hour
