ISO 9001 competive supplier SMC FRP material

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ISO 9001 competive supplier SMC FRP material

Sheet Molding compound (SMC) is a mineral filled, fiberglass reinforced polyester (vinyl ester and phenolic) based molding compound. SMC is a thermosetting material that undergoes an irreversible cross-linking reaction when exposed to the heat and pressure of the thermoset molding process (i.e. ambient delivery of material to a heated molding surface).A somewhat tacky, dough-like mass in its unmolded state, SMC is covered to an infusible, solid state using injection, compression and transfer methods.

SMC SPECIFICATION

 

	Physical properties		UNIT	SMC-1	SMC-2	SMC-3
1	Specific  gravity		g/cm3	1.75—1.95
2	Water  absorption		mg	≤20	≤20	--------
3	Shrink rate		%	≤0.15	≤0.15	≤0.30
4	Heat deflection temperature		°C	≥240	≥240	≥220
5	Izod impact strength unnotched		KJ /m2	≥90	≥60	≥45
6	Flexural strength		MPa	≥170	≥150	≥135
7	Insulation resistance	Normal	Ω	≥1.0×1013	≥1.0×1013	≥1.0×1012
		24hours after soaking		≥1.0×1012	≥1.0×1012	--------
8	Dielectric strength (at 90°C in oil)		MV/m	≥12	≥12	≥10
9	Dielectric loss factor (at 1 MHz )			≤0.015	≤0.015	---------
10	Dielectric constant ((at 1 MHz )			≤4.5	≤4.5	---------
11	Surface resistivity		S	≥180	≥180	≥150
12	Tracking resistivity  (PTI)		V	≥600
13	Flammability			FV0	FV0	---------
14	Long term heat resistance temperature			155	155	130

These aboved specifications are made by our country's standard which we involved in. Detailed specifications could be adjusted to meet your products' demands.

ISO 9001 competive supplier SMC FRP material