Ultra-low-hardness Silicone Rubber

Ultra-low-hardness Silicone Rubber


●Swimming caps, swimming goggles, cushions, and pen caps with good hand feeling

●Physical data in the above table is for reference only.

●Vulcanization condition: 175℃* 5Min.

●Ratio of curing agent liquid 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane: 0.65%.

● The Quality Inspection Department obtains the supplied test report with the curing conditions and testing method of the company; due to the difference in curing conditions and testing method, we can’t guarantee that both parties obtain the same testing result, and we suggest that users should use the test data obtained under their own testing conditions as the reference for service performance. All the above performance data and application recommendations are only a reference for use on the service performance of the product, instead of a guarantee on the effectiveness or general applicability of our products under a particular application.


PropertiesProduct DataTest Method
AppearanceMilk-white, translucentMilk-white,  yellowishTransparentVisualInspection
No obvious extraneous matter
Density,  g/cm31.00~1.061.04~1.091.04~1.091.00~1.061.04~1.091.04~1.09ASTM D792
Hardness,  Shore A12±220±211±220±2ASTM D2240
Tensile Strength, MPa      ≥ D412
Elongation at Break, %     ≥760750700780800
Tension Set,  %          ≤868108
Tear Strength, Die C  kN/m ≥51051213ASTM D624