Product Introduction:

Mica board is made by bonding mica paper with silicone rubber, heating, and pressing. The mica content is approximately 90%, and the silicone rubber content is 10%.

Product Features:
It possesses high insulation strength and high resistance, low dielectric loss, and excellent dielectric properties such as arc resistance and corona resistance. It is hard, high-temperature resistant, and has excellent bending strength and processing performance. This product features high strength, good toughness, and strong thermal insulation.

Product Applications: Suitable for household appliances, electric irons, hair dryers, toasters, coffee makers, microwave ovens, electric heaters, refining furnaces, calcium carbide furnaces, ferroalloy furnaces, yellow phosphorus furnaces, high-temperature insulation, and various electrical welding machines, surge arresters, electric heating elements, etc. Also suitable for metallurgical and chemical industries, including industrial frequency furnaces, medium frequency furnaces, electric arc furnaces, and injection molding machines.

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Performance parameters：

project		unit	T-5660-H1	T-5660-H3	Test methodology
mica paper			Muscovite	Phrypite
mica content		%	≈92	≈92	IEC 60371-2
Glue content		%	≈8	≈8	IEC 60371-2
Density		g/cm³	1.8-2.45	1.8-2.45	IEC 60371-2
Temperature resistance class	Continuous use environment	℃	500	700
Temperature resistance class	Intermittent work environment	℃	800	1000
Thermal weight loss at 500°C		%	﹤1	﹤1	IEC 60371-2
Thermal weight loss at 700°C		%	﹤2	﹤2	IEC 60371-2
Flexural strength		MPa	﹥200	﹥200	GB/T 5019.2
Water absorption		%	﹤1	﹤1	GB/T 5019.2
Electrical strength		kV/mm	﹥20	﹥20	IEC 60243-1
Insulation resistance at 23°C		Ω·cm	10¹⁷	10¹⁷	IEC 60243-1
Insulation resistance at 500°C		Ω·cm	10¹²	10¹²	IEC 60243-1
Flame retardant rating			UL94 V-0	UL94 V-0	UL94
Smoke Test		s	＜4	＜4	Internal standards

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mica board

mica board

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