01 January 2011
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Structural adhesive copes with thermal cycling

Supreme 33, formulated for structural applications in extreme environments by Master Bond offers resistance to thermal cycling, thermal shock and impact between -80°F to +425°F.

This toughened, two-component epoxy offers high structural bond strength to a wide variety of substrates including metals, glass, ceramics, wood, vulcanized rubbers and many plastics. The product also resists chemicals including water, oil and many organic solvents.

With a mix ratio of 100 to 70 by weight or 1 to 1 by volume, Supreme 33 cures at room temperature in 48 to 72 hours. For optimal performance, the suggested schedule is curing overnight at room temperature followed by 2 to 3 hours at 150 to 200°F. This 100% reactive epoxy does not contain any solvents, has good dimensional stability and features very low shrinkage upon cure.

It produces high performance bonds boasting a shear strength over 2,500 psi, a tensile shear strength greater than 7,500 psi and a T-peel strength exceeding 15 pli. Master Bond claims its Supreme 33 is a good electrical insulator that can be widely used in the electronic, electrical, aerospace and OEM industries.

Paul Gay

Related Companies

Master Bond


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