New Master Bond toughened epoxy 09 January 2023

Master Bond has recently released its new product, Supreme 42HT-2ND Black, a two-part, non-drip epoxy system designed for bonding, sealing and coating applications.

Supreme 42HT-2ND Black is an electrically insulative epoxy with a volume resistivity greater than 1014 ohm-cm. This compound has a Shore D Hardness of 75 – 85 at 75°F (23.8°C) and can withstand rigorous thermal cycling. Also, the epoxy has passed damp heat reliability testing for 1,000 hours at 85°C and 85% relative humidity. Supreme offers a high strength profile, with a tensile strength of 9,000 psi – 10,000 psi and a tensile modulus of 300,000 psi – 350,000 psi at 75°F.

Master Bond’s new epoxy is capable of withstanding temperatures up to 450°F (232°C), and provides a glass transition temperature (Tg) of 130°C – 135°C. The material also meets NASA low outgassing standards and Master Bond recommends this product for applications that require vacuum compatibility. 

With a 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. The epoxy cures at ambient temperature within a 2 – 3 day period. Adding heat will not only speed up the curing process, but will also optimise the overall performance properties of the product. Supreme 42HT-2ND Black is available in standard packaging, double barrel cartridges for gun kits, as well as pre-mixed and in frozen syringes.

Becca England Assistant Editor t: +44 (0) 1727 615 413

Becca is the latest member to join our team and is eager to get stuck into the world of fasteners. She brings an enthusiastic and fresh outlook on what we do editorially and will be leading our social media activity – including sourcing material, editing articles and posting online.