Mica sheet is a rigid or flexible laminate built from mica paper and a suitable binder, used where a flat, high-temperature electrical or thermal barrier is required. It withstands continuous heat that would destroy plastics or elastomers, while maintaining dielectric strength.
YT MICA produces mica sheets in several grades for motors, transformers, switchgear, industrial heating equipment and appliance applications. Sheets can be supplied in standard formats or cut to size.
Our mica sheet, up close
Rigid mica sheet
Sheet formats
Muscovite (white) mica sheet
Phlogopite (gold) mica sheet
Rigid and flexible mica sheet
Rigid Mica Sheet
High mechanical strength and dimensional stability, suitable for structural insulation components such as slot insulation, barriers and supports where the part must hold its shape under load and heat.
- Motor and generator slot insulation
- Transformer barriers and spacers
- Switchgear and busbar insulation
Flexible Mica Sheet
Bendable and conformable, allowing insulation to be wrapped or formed around irregular geometries. Useful where the part must follow a curved surface without cracking.
- Wound and formed insulation
- Heating element carriers
- Appliance thermal barriers
Why mica sheet performs where other materials fail
Because the base material is a mineral, mica sheet does not burn and does not propagate flame. It is chemically neutral and halogen-free, so it does not release the corrosive or toxic gases associated with some polymer insulation in a fire.
Sheet dimensions, thickness and grade can be tailored to your drawing. Tolerances are confirmed on the agreed datasheet.
Looking for a specific sheet grade?
Send us your drawing or application details and we will confirm a suitable mica sheet specification.