SpecSeal® EP Powershield Electrical Box Inserts are high‑performance intumescent firestop inserts designed to install directly against the back of steel electrical boxes. Engineered for both retrofit remediation and pre‑installation, Powershield Inserts provide a fast, reliable method for enhancing fire resistance at electrical box penetrations in fire‑rated wall assemblies. Each insert features pre‑scored cutouts that allow for easy installation around ground lugs and other internal box components, ensuring a precise fit. Whether used during early construction stages or added to existing installations, SpecSeal EP Powershield Inserts help maintain the integrity of fire‑rated walls by reducing the spread of flames and smoke through electrical box openings. Ideal for commercial, multifamily, and institutional applications, these inserts deliver a consistent, code‑compliant firestopping solution that improves safety while simplifying installation.

Features

• Easy to install in the field or in the shop
• No mess, no residue, no clean-up required
• Rapid expansion - quickly seals off the passage of fire and smoke
• High volume char - minimum to 24x
• Water resistant - no soluble or hygroscopic ingredients
• Conveniently sized - fits common switch and receptacle boxes
• Easy retrofit - can be used for boxes installed in existing walls
• Low profile - maximizes area inside box

20 pcs/ctn