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Metacaulk® Box Guard™ is a highly intumescent, fi re-rated pad for use in electrical boxes. When complying with the - 24 inch rule -, it is inserted on the inside back wall of an electrical box. When exposed to fire, Box Guard™ will expand forming a char that will seal off the opening and prevent the spread of fl ames and limit the temperature rise on the unexposed surfaces. A labor saving, economical alternative to putty pads. Great for retrofit jobs. STC 53 Rating, Tested in a UL 411 wall assembly/section to ASTM E90.
- Easy to install
- w/ Self-adhesive strip
- Cost effective
- UL Classified as a Wall Opening Protective Material
- Highly intumescent
- Non-conductive
- Dielectric breakdown voltage 22V/mil (ASTM D 149)
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.
- Easy to install - Cost effective
- UL Classified as a Wall Opening Protective Material
- Great for retrofit applications
- Reduces sound transmission
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