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by SpecialChem

HAPFLEX™ 1021

HAPFLEX™ 1021 by Hapco is a soft, low durometer, two-component hybrid rubber. Designed for liquid molding applications including parts, gaskets, molds & electrical insulation applications such as potting and encapsulating. Also used in industrial & prototyping applications like bumpers and pads. HAPFLEX™ 1021 has a shelf life of 6 months. It is available as 100:200 solution by volume A:B in both fast and a slow version.

HAPFLEX™ 1021 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Gel time

16 min

(100 grams at 25°C)

ASTM D-2971

Viscosity (Mixed)

2500 cps

(at 25°C)

ASTM D-4878

Linear Mold Shrinkage

0.001 - 0.003 inch/inch

ASTM D-2566

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