Which Tough-Seal is Right for You?
Tough-Seal is a superior family of KEY sealants available in four standard formulations to fit a variety of potting applications. While all Tough-Seal formulations are durable hybrid epoxy elastomers that grip and protect under the most aggressive conditions, they are available in a combination of properties that vary in hardness, gel-time, working time, and flow.
Learn More About Each Tough-Seal Formulation

Compare Tough-Seal Formulations
Tough-Seal is the KEY potting compound that performs under the most aggressive conditions. Tough-Seal offers a unique combination of properties not commonly found in just one potting compound. Compare the KEY properites of all four Tough-Seal formulations side-by-side.
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Tough-Seal 21
Tough-Seal 23
Tough-Seal 24
Tough-Seal 31
Tough-Seal 32
Tough-Seal 41
Tough-Seal 42
Ready to Try Tough-Seal?