WC-1 Type C

WC-1 Type C is a cork-filled mastic with low thermal conductivity and good moisture resistance.

WC-1 Type C is used to retard condensation on the surfact of piping, tanks, or other equipment which operates at a temperature below the dew point of the ambient air. It is designed for use on systems involving moderate temperatures such as cold water lines, but will not be effective on extremely cold surfaces. Normal applications range from 1/4" to 1/2" total dry thickness.