Rigid Plate

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Rigid Plate

Rigid heater mica plates consist of approximately 90% muscovite, alternatively Phlogopite mica, impregnated with 10% high temperature resistant silicone resin. It is used as supporting insulation for resistance wire heating elements.  Some types of heating applications are strip heaters, band heaters, and hand dryers. Other applications where excellent resistance to moisture and thermal mechanical and electrical properties are required such as gaskets. We produce sheets 36” x 36” and stock a wide variety of thicknesses in sheets 39.37” x 47.24” (1000mm x 1200mm).  Sheets up to 1000mm x 2400mm available special order. . Also used as a replacement for asbestos and other non-mica insulating materials for a variety of applications.

BASIC TYPES OF MICA PAPER PLATE
Type Description Bond Temp Class Available
NEMA 8P Rigid Mica Paper Silicone 220° C Sheets up to 36" x 36" or 39.37" x 47.24". Thickness from .010" up to 2"
NEMA 86P Cold Flexible Mica Paper Plate Silicone 220° C Sheets up to 36" x 36" or 39.37" x 47.24". Thickness from .010" to .060"
NEMA 2P Hot Moldable Mica Paper Epoxy Class F 155° C Sheets up to 36" x 36". Thickness .010" to .060"
NEMA 3P Rigid Mica Paper Segment Plate Epoxy Class F 155° C Sheets 23.62" x 39.37". Thickness .020" to .060"
NEMA 311P Mica Paper Between Varnished Glass Cloth Polyester Class F 155° C Sheets up to 36" x 36". Thickness .010" to .060"
NEMA 312P Mica Paper Between Varnished Glass Cloth Silicone Class H 180° C Sheets up to 36" x 36". Thickness .010" to .060"