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Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
SiSiB® HR1131
SiSiB® HR1131

SiSiB® HR1131 is a peroxide-curable, high-consistency silicone rubber (HCR) designed for molding. It offers high resilience and low compression set, along with excellent mechanical properties, anti-yellowing behavior, and processability.

SiSiB® HR1131

Features


  • High resilience


  • Low compression set


  • Excellent mechanical properties


  • Good processability, easy to demold


  • Non-stick to rolls during processing


  • Good resistance to yellowing


Physical Properties


Appearance

Translucent

Density (g/cm3)

1.06 - 1.10

Hardness (Shore A)

27 - 33

Tensile Strength (MPa)

Min. 5.0

Elongation (%)

Min. 380

Tensile Set (%)

Max. 4.0

Tear Strength (KN/m)

Min. 16.0

Compression set (180°C*22h, %)

Max.10

Recommended Curing: 175°C × 5 minutes

Curing Agent: 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane

Recommended Dosage: 0.65 wt%

The physical values listed are for reference only and not intended as specifications.

Application


  • SiSiB® HR1131 is widely used in the production of molded silicone rubber parts that require excellent resilience and low compression set, including keypads, O-rings, gaskets, shaft seals, rubber rollers, and other dynamic sealing parts.

Packing and Storage


SiSiB® HR1131 is supplied in 20Kg box.


In the unopened original container, SiSiB® HR1131 has a shelf life of 6 months in a dry and cool place.

Documents

DownloadSiSiB® HR1131 Safety Data Sheet
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SiSiB® HR1131