Metacaulk® Cover Guard™ is a single component, fire-rated gasket for use with electrical boxes to comply with the “24 inch rule”.
Metacaulk® Cover Guard™ fits under the cover plate and does not take up volume in the electrical box. It is a labor saving replacement for putty pads in normal applications. STC 54 rating, Tested in a UL 411 wall assembly/section to ASTM E90. Patent Pending.