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Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
SiSiB® HR8670
SiSiB® HR8670

General Fumed Silicone Rubber for Extrusion

SiSiB® HR8670 is a general-purpose silicone rubber based on fumed silica for extrusion, with a hardness of 70. It provides excellent transparency, mechanical properties, stable processability, and superior yellowing resistance. It complies with FDA and LFGB standards.

SiSiB® HR8670

Technical Data


After curing (175°C × 5 min)


Appearance

Transparent

Density (g/cm3)

1.17-1.23

Rebound Resilience (%)

Min. 45.0

Hardness (Shore A)

70+/-2

Tensile Strength (MPa)

Min. 8.5

Elongation (%)

Min. 300

Tensile Set (%)

Max. 10.0

Tear Strength (KN/m)

Min. 25.0

After post-curing


Hardness (Shore A)

76+/-2

Tensile Strength (MPa)

Min. 8.0

Elongation (%)

Min. 260

Tear Strength (KN/m)

Min. 18.0

Curing Agent Content0.65%

The above values are typical and not intended for specification purposes.

Application


SiSiB® HR8670 is suitable for extrusion manufacturing of:


  • Silicone tubes


  • Sealing joint strips


  • Electrical wire and cable insulation


  • Various transparent extruded silicone products

Packing and Storage


SiSiB® HR8670 is supplied in 20Kg box, with plastic bag inside.


This document does not contain the product safety information required for safe use. Before handling, please refer to the product and safety data sheets, as well as container labels, for information on safe usage, physical hazards, and health risks. Safety Data Sheet is available on the website, from the distributor, or by contacting SiSiB customer service.

Documents

DownloadSiSiB® HR8670 Safety Data Sheet
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SiSiB® HR8670