Name: Competive price black cardboard paper sheets
Brand: black cardboard paper sheets
Availability: InStock

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Competive price black cardboard paper sheets

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Technical parameter

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ITEM	UNIT	VALUE
ITEM	UNIT	3021	3021B	3021C
Density	g/cm3	1.30~1.45	1.30~1.45	1.30~1.45
Heat stability	℃	—	—	—
Thickness ≤20mm		115	115	115
Thickness >20mm		90	—	—
Flexural strength≥	MPa	120	90	90
Tensile strength≥	MPa	100	—	—
adhesion force ≥	N	3130	2940	2740
Insulation resistance parallel to lamination≥	Ω	—	—	—
Under normal condition		1×109	1×109	1×109
In case of humidity		1×107	1×106	1×106
Voltage endurance perpendicular to lamination in transformer oil 5 min at 20±5℃≥	kV/mm	—	—	—
Thickness:0.2~1mm		16	—	—
Thickness:1.1~2mm		15	14	12
Thickness:2.1~3mm		13	—	—
Thickness:>3mm		13	—	—
Voltage endurance parallel to lamination in transformer oil 5 min at 20±5℃≥	kV	14	12	10
Area of the sheets	mm	1020×1220,980×1980,1020×2040

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Details&features

Competive price black cardboard paper sheets

Product description of black cardboard paper sheets

Phenolic Paper laminated sheets is made of insulation paper impregnated with phenolic resin by processing under heat and pressure.

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Product Application of black cardboard paper sheets

These materials offer an economic solution to engineering applicationswhere good mechanical strength coupled with light weight and useful electrical resistance is required.

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Production Flow

From raw materials to finished products, every process is tested and controlled professionally and seriously by our professional machines and person.

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