Brand Name: Gardner Bender | Container Size: 16 oz. | Grease Lube Type: General Purpose | Packaging Type: Bagged This compound seals conduit openings against drafts, dust moisture and noise. It also protects terminal boxes, pot heads and bushings from corrosive elements and deadens switch gear panel noise. The dough-like compound is easily thumbed over holes and gaps. It will not harden or form a skin under normal conditions. | Dough-like sealing compound | No drafts, dust, moisture, noise | Will not harden or form a skin under normal conditions | Protects against corrosive elements and deadens noise | Non-conducting, non-deteriorating, non-toxic | Temp Rated: -20 Â °F(-29Â °C) to over 550 Â °F (285 Â °C).