Metacaulk® COVER GUARD™ is a single component fire rated gasket for use with electrical boxes when addressing the "24-inch rule". Metacaulk® COVER GUARD™ is mounted on the inside of the cover plate and installed at the same time as the cover plate, covering the opening and providing the necessary fire protection. When exposed to heat, Metacaulk Cover Guard is highly intumescent nature causes it to expand forming a char that will seal off the opening and prevent the spread of flames and limit the temperature rise on the unexposed surfaces. Metacaulk® COVER GUARD™ is applied by hand, does not take up the volume in the electric box and is labor saving replacement for putty pads in normal applications.
Metacaulk® Cover Guard™ Features