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Standard Grade Silicone Rubber for Molding and Extrusion

Time:2011-02-27 19:33Writer:djsilicone View:3823

    This product has flexible processability and comprehensive physical properties, excellent yellowing resistance and superior aging resistance at temperature of - 50 to 200℃. The rubber for molding is vulcanized with 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane as vulcanizator, applicable to manufacturing of various keypads for electronic & electric appliances, electrical insulations, automotive accessories, industrial & civil seal rings, miscellaneous parts and transparent pieces, etc. The rubber for extrusion is vulcanized with vulcanizator DCBP (Di-(2,4-dichlorobenzoyl) Peroxide), applicable to variousthermotolerant & cold resisting electric wires, cables and sheaths. This product is available as a milk-white translucent finished product, or compound with curing agent & pigment, or sliced product.

Category Product model Appearance Hardness
Shore A
Tensile strength
Mpa ≥
Elongation at break
% ≥
Breaking set
% ≤
Tear strength B
kN/m ≥
Specific density
25℃ g/cm3
Dielectric strength  kV/mm ≥ Volume resistivity
Ω.cm ≥ 
For molding NE-131 Milk-white translucent 30±2 6.0 600 6 15 1.08±0.05
NE-141 40±2 6.5 400 6 19 1.13±0.05
NE-151 50±2 8.0 350 7 22 1.15±0.05
NE-161 60±2 8.0 300 7 22 1.19±0.05
NE-171 70±2 7.5 220 6 20 1.22±0.05
NE-181 80±2 7.0 180 5 18 1.25±0.05
NE-191 86±2 4.0 80 6 10 1.26±0.05
For extrusion NE-251extruded wire 50±2 8.0 440 14 20 1.18±0.05 20 3.0×1014
NE-251extruded tube 52±2 7.5 380 12 20 1.18±0.05 20 3.0×1014
NE-261extruded wire 60±2 7.5 380 14 22 1.20±0.05 20 3.0×1014
NE-261extruded tube 62±2 7.5 300 12 22 1.20±0.05 20 3.0×1014
NE-271extruded wire 70±2 7.5 250 14 20 1.22±0.05 20 3.0×1014
NE-271extruded tube 71±2 7.5 200 12 20 1.22±0.05 20 3.0×1014
NE-281extruded wire 80±2 7.0 180 10 20 1.25±0.05 20 3.0×1014
NE-281extruded tube 80±2 7.0 160 10 20 1.25±0.05 20 3.0×1014

Addition of curing agent: liquid 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane, silicone rubber 0.65%.Test piece vulcanization condition: 175℃×5min.
Related material download:
Material Safety Data Sheet (MSDS)for Silicone Rubberr
RoHS and Other Restricted Substances Test for Silicone Rubber
Substances of Very High Concern Test(SVHC)for Silicone Rubber
FDA Test for Standard Grade Silicone Rubber for Molding and Extrusion
Phthalates Test for Silicone Rubber
Standard Grade Silicone Rubber for Molding and Extrusion(TDS)




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