2-component polyurethane casting resin 8503 + PU hardener 8901
Solvent-free and electrically insulating, very high thermal conductivity, no metallic fillers, excellent adhesion properties, free of halogenated flame retardants. Ideal for cooling windings, electric motors, accumulators, and high-performance components. For creating effective heat sink design variations and easily combinable with Kisling's LED potting compounds.
Chemical basis: Polyurethane
Color: crystal clear
Density: 1.05 – 1.10 g/cm3
Mixing ratio: 100 : 100 (W:W)
Viscosity: 650 – 850 mPas
Pot life: min. 30 – 45
Shore hardness (DIN EN ISO 868): A58 – 68
Operating temperature range: -40 to +130 °C/-40 to +130 °C
Curing conditions: Cold curing
Thermal conductivity: 0.2 W/mK
Glass transition temperature: -2 °C
CTE < Tg: 135.3 ppm/K
CTE > Tg: 199.5 ppm/K
UL94: HB