Master Bond Supreme 42HT-2ND Black is a two-part, non-drip epoxy system designed for bonding, sealing and coating applications. It is capable of withstanding temperatures up to 450 °F (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.
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Supreme 42HT-2ND Black is electrically insulative with a volume resistivity greater than 1014 ohm-cm. This compound has a Shore D Hardness of 75-85 at 75 °F 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 75 °F.
With a forgiving mix ratio of 100 to 40 by weight or 100 to 50 by volume, this paste consistency material can be easily 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 optimizes 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.
Master Bond Electrically Insulating, Low Outgassing Adhesives
Master Bond Supreme 42HT-2ND Black is a NASA low outgassing, electrically insulating, two-part epoxy system used for bonding, sealing and encapsulating. It passes 85 °C/85% RH testing, which helps to determine the expected operating life for devices in many critical aerospace, optical, electronic and optoelectronic applications. Read more about Master Bond’s electrically insulating adhesives at https://www.masterbond.com/properties/electrically-insulative-adhesive-systems or contact Tech Support.