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R-5660-T series of Thick Mica Plate is Rigid Mica Plate with thickness more than 5mm; it is mica laminates designed for providing outstanding resistant to high voltage and to high temperature.

R-5660- T series has acquired UL94V-0 approval with the file No.E231452, TUV approval on environmental safe (the file No. Z05811263 ), SGS-RoHS approval with the file No. SH6148278/CHEM, and has been authorized for use in contact with food products (certificate from the FDA with the file No. RJSSZ060586FDA).

R-5660- T series has two species:
    > R-5660- T 1: Muscovite Thick Mica Plate , Silver color, Heat resistance: 500 ℃ / 932°F (In constant operation), 750 ℃ / 1382°F (in intermittent operation) .
    > R-5660- T 3: Phlogopite Thick Mica Plate , Golden/Amber color, Heat resistance: 750 ℃ / 1382°F (In constant operation), 1000 ℃ / 1832°F (in intermittent operation)

No.	Item	Unit	R-5660-T1	R-5660-T3	Test Procedure
1	mica paper		muscovite	phlogopite
2	Mica content	%	ca.88	ca.88	IEC 371-2
3	Bond content	%	ca.12	ca.12	IEC 371-2
4	Density	g/cm3	2.35	2.35	IEC 371-2
5	Heat Resistant
	continuous services	℃	500	700
	intermittent services	℃	800	1000
6	Water absorption 24H/ 23 ℃	%	<1	<2	GB/T5019
7	Dielectric strength at 20 ℃	KV/mm	>15	>15	IEC 243
8	Insulation resistance 23 ℃	Ω .cm	1017	1017	IEC93
	Insulation resistance 500 ℃	Ω .cm	1012	1012	IEC93
9	Flame Resistance		94V0	94V0	UL94

R-5660- T series are in the form of very rigid laminated plates. They retain their properties even after being exposed to heat. They are used for the following applications:
Used for industrial heating applications: wound heater elements, cylindrical resistance heaters, thermal insulation in circuit breakers, chemical-engineering and electric appliances, electric sterilized cabinet, and in steel or metallurgy industry for intermediate frequency furnace, arc furnace, etc.