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Sheet Molding Compound 2

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Description

SMC stands for sheet molding compound. It is one of the FRP processing techniques. Unsaturated polyester resin, fiberglass reinforcements, fillers and specialized additives are used as its raw materials. SMC products, which are widely used in electrical field, civil construction, railway, and automobile field, have excellent electrical properties, high mechanical strength, reliable flame resistance, arc resistance, and reliable dimensional stability.

Performing Indexes for SMC
SN	property	unit	index
SN	property	unit	common	wearable	mechanical	good mechanical	electric	mechanic & electric	anti corrosive
1	density	g/cm3	1.75--1.95
2	water absorption	-	≤0。5%
3	molding shrinkage	%	≤0.30	≤0.15	≤0.30	≤0.15	≤0.15	≤0.30	≤0.15
4	temperature of deflection under load	℃	≥220			≥240			≥220
5	charpy impact strength	KJ/M	≥45	≥60	≥120	≥75	≥60	≥120	≥60
6	flexural strength	MPa	≥135	≥150	≥200	≥170	≥150	≥200	≥150
7	insulation resistance	Ω	≥1.0x10¹²	----		≥1.0x10¹³			----
8	electric strength	MV/m	≥11.0			≥12.0			----
9	dielectric loss factor(1MHz)	MH2	≤0.015	----		≤0.015			----
10	relative dielectric constant(1MHz)	MH2	≤4.8			≤4.8			----
11	arc resistance	-	≥180			≥180			----
12	proof tracking index, PTI	V	≥600			≥600		----
13	flammability	S				FV0			----
14	long-term heat resistance temperature	℃	155				130

Nanjing Xingya FRP Co., Ltd.

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Sheet Molding Compound 2

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