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GC302 (Modified) Bismaleimide Glassfiber Sheet BMI GC301

Product Details

No.	Item	Unit	Index
No.	Item	Unit	3250	350	352		BMI GC301	BMI GC302	347	PAIGC301
1	Appearance	-	The surface is smooth, uniform color, no bubbles, wrinkles, neat edge cutting, no delamination in the section
2	Density	g/m³	1.8-1.95
3	Vertical flexural strength (normal)	MPa	≥320	≥300		≥300	≥350	≥380	≥350	≥400
4	Parallel layer impact strength (simple supported beam method)	KJ/m2	≥45	≥42		≥38	≥60	≥60	≥60	≥60
5	Vertical layer electrical strength (90 degrees transformer oil,1mm)	Kv/mm	≥8.0	≥8.0		≥14.0	≥14.0	≥14.0	≥14.0	≥14.0
6	Parallel layer breakdown voltage (90 degrees transformer oil)	kv	≥35	≥35		≥40	≥35	≥40	≥35	≥40
7	Dielectric constant (50Hz)	-	≤4.5	≤5.5		≤5.5	≤5.5	≤5.5	≤5.5	≤5.5
8	Dielectric loss factor (50Hz)	-	≤0.02	≤0.05		≤0.05	≤0.04	≤0.05	≤0.05	≤0.03
9	Insulation resistance after soaking	Ω	≥1.0*1010	≥1.0*1010		≥1.0*1010	≥1.0*108	≥1.0*108	≥1.0*108	≥1.0*108
10	Resistance index	(PTI)	-	-		≥300	≥280	≥280	≥500	≥500
11	Combustibility	-	V-0	-		-	-	-	-	-
12	Temperature index	-	180	180		180	180	180	155	200
13	Water absorption (thickness 1-20mm )	mg	32～125	64～200		64-193	64～193	64～193	64～193	64～227

GC302 (Modified) bismaleimide glassfiber sheet BMI GC301/ GC302
BMI GC301/BMI GC302 is one kind of laminated sheet products which made of alkali free fiberglass cloth impregnated with BMI resin by baking and pressing. This product has excellent heat resistance, electrical insulation, wave transmission, radiation resistance, flame retardancy, and mechanical properties. It is an ideal insulating material for class H electrical equipment
Standards: GB/T 1303.10-2009 / IEC60893-2:2003

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GC302 (Modified) Bismaleimide Glassfiber Sheet BMI GC301

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