R-5660-G series of Glossy Mica Plate are mica laminates designed for providing outstanding electrical insulation at high temperature, which consist of approximately 90 % muscovite(or phlogopite) and 10% high temperature resistant silicone resin.
Note: The product less than 2.0mm thickness can be formed by stamping. The products larger than 2.0mm shall be processed by turning, milling, drilling and other processes.
Properties
Relative to general insulation material, the prominent advantages of the glossy mica plate are:
Excellent insulating properties at high temperature: At 500-1000℃ operating ambient temperature, the voltage breakdown resistance is 15kV/mm;
Excellent mechanical properties: Good flexural strength and hardness;
Stable chemical properties: Excellent resistance to acid, alkali and oil and good aging resistance;
Excellent environmental protection performance: The product contains no asbestos, and has less smoke and odors, even smokeless and odorless when heating;
Excellent processability: The product can be processed into various shapes without delamination.
Packaging
One pack is 50kg in general. The product is sealed usually with plastic film and packed in carton. The fumigation-free pallet shall be used when exporting. Each pallet contains<1000kg or protected by metal drum.
Storage
Stored in dry and moisture-proof indoor place at room temperature, there is no service life limit.
Performance Parameter
Item
Unit
R-5660-G1
R-5660-G3
Test Procedure
Mica Paper
Muscovite
Phlogopite
Mica Content
%
≈92
≈92
IEC 60371-2
Bond Content
%
≈8
≈8
IEC 60371-2
Density
g/cm3
1.8-2.45
1.8-2.45
IEC 60371-2
Heat Resistance
Continuous Services
℃
500
700
Intermittent Services
℃
800
1000
Heat Loss at 500℃
%
﹤1
﹤1
IEC 60371-2
Heat Loss at 700℃
%
﹤2
﹤2
IEC 60371-2
Flexural Strength
MPa
﹥120
﹥120
GB/T 5019.2
Water Absorption
%
﹤1
﹤1
GB/T 5019.2
Dielectric Strength
kV/mm
﹥20
﹥20
IEC 60243-1
Insulation Resistance at 23℃
Ω·cm
1017
1017
IEC 60243-1
Insulation Resistance at 500℃
Ω·cm
1012
1012
IEC 60243-1
Flame Resistance
UL94 V-0
UL94 V-0
UL94
Smoking test
s
<4
<4
in house
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