Silicone Rubber

Silicone rubber SY-350 medium cellular silicone is a lightness foam featuring enhanced sealing capabilities compared to traditional sponge rubber.
SY-350 Silicone support is available in various thicknesses and manufactured in roll form to allow fabricators to easily convert the material to the proper dimensions

Color: Gray
Width: Max 900mm
Thickness: 0.6mm to 20mm

Data Sheet

Features

Applications

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Silicone Rubber Data Sheet

Test Item	Unit	Test stanard	Result
Density	g.cm-3	ASTM D 1056	0.35±0.01
Compressive stress, 25%	kPa	ASTM D 1056	60 ± 10
Compression set	%	ASTM D 1056 @100℃	≤ 5.0
Tensile strength	MPa	GB/T 528-2009	≥ 0.3
Elongation	%	GB/T 528-2009	≥ 80
Water absorption	%	Internal test	≤ 1.5
Environmental protection test	/	RoHS、REACH	qualified
Flame retardancy	/	UL94-2013	V-0
Smoke density	/	BS 6853 Appendix D	A0≤220
Smoke toxicity	/	BS 6853 Appendix B	R≤5
Surface flame propagation velocity	/	BS 476-7	second level
CHF value of flame extinction	kW/m2	BS ISO 9239-1	≥8
Maximum smoke density DS MAX	/	EN ISO 5659-2	≤150
Traditional toxicity index Citg	/	EN ISO 5659-2	≤0.75
Combustion produces toxic gases	/	SMP 800-C-2009	qualified
Low temperature bending	/	ASTM D 1056	-55 ℃ qualified
Dielectric strength	kV/mm	GB/T 1695-2005	≥ 2.5
Volume resistivity	Ω·cm	GB/T 1692-2008	≥ 10^14
Thermal conductivity	W/(m·K)	ASTM C518	0.06

Silicone Rubber Features

Excellent flame retardant.
Excellent electric insulation.
Steady-going storage.
Excellent memory and low-stress relaxation reduce maintenance costs associated with gasket failures.
Resistance to ultraviolet light, ozone, and extreme temperatures(-60 ~ 200 oC) enable consistent performance.

Silicone Rubber Applications

It is used to seal and protect various outdoor communications, cell packs, railway transportation, and electronics.
This material provides protection against wind-driven rain and fire, and reduces shock or isolates vibration.