This roller cover is used for spreading contact cement onto what surface you need it applied (wood surface, laminate sheets, etc.). Due to the nap of these covers just the right amount of adhesive is spread to wherever you need. The nylon fabric provides long life. In order to resist deterioration from cements and cleaning solvents, the core of the roller cover is impregnated with a phenolic resin. Covers should always be removed from the frame while still wet.