It is capable of withstanding temperatures up to 232°C, and provides a glass transition temperature (Tg) of 130-135°C. The material meets NASA low outgassing standards and is recommended for applications that require vacuum compatibility.
Supreme 42HT-2ND Black is electrically insulative with a volume resistivity greater than 10^14 ohm-cm. This compound has a Shore D Hardness of 75-85 at 24°C and withstands rigorous thermal cycling. It passed damp heat reliability testing for 1,000 hours at 85°C and 85% relative humidity. It offers a high strength profile, with a tensile strength of 9,000-10,000 psi and a tensile modulus of 300,000-350,000 psi at 24°C.
With a mix ratio of 100 to 40 by weight or 100 to 50 by volume, this material, which has a consistency of paste, can be applied with the use of a gun dispenser or spatula. It cures at ambient temperature in 2-3 days, or faster with the addition of heat. Adding heat not only speeds up the curing process but also optimises the overall performance properties.
Supreme 42HT-2ND Black is available in standard packaging, double barrel cartridges for gun kits, as well as pre-mixed and frozen syringes.
