M-Coat B

Air-Drying Nitrile Rubber Coating – Overview

Air-drying solvent-thinned (MEK) nitrile rubber. Forms a flexible, rubbery coating.
Do not use directly on exposed foil or bare leads.
Often used to prime vinyl-insulated wire to improve bondability to other coatings.
If used as a primer on leads, thin 50:50 with MEK.

Flexible at cryogenic temperatures. Provides excellent resistance to gasoline, kerosene, and commercial oils.
Electrical properties are poorer than other M-Coats, particularly at elevated temperatures.

Cure Requirements

• Air-dries in 1 hour at +24°C.
• Do not apply subsequent protective coatings for at least 2 hours after application.
• Normal cure: 24 hours at room temperature.
• For improved chemical resistance, bake for 1 hour at +95°C.

Operating Temperature Range

Availability

Available in:

• Single Bottle – 30 ml
• Kit – 4 × 30 ml bottles