metacaulk® 66367 1079802

metacaulk® Box Guard™ is a 1 component fire-rated pad for use in electrical boxes. When exposed to fire, it will expand forming a char that seals the opening, prevents spread of flames and limits temperature rise on unexposed surfaces.

metacaulk® Box Guard™ Fire Stop Pad, 8 in Width, 4 in Length, Black

• Easy to install - adheres to back of electrical box
• Cost-effective and great for retrofit jobs
• Highly intumescent firestop material
• Non-conductive, dielectric breakdown voltage 22 V/mil (ASTM D 149)
• A labor saving, economical alternative to putty pads