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.
US Patent No. 6,207,085; 6,252,167 & 7,348,484
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