Sti EP44 SpecSeal EP Powershield Electrical Box Insert 3-3/4 inches x 3-3/4 inches x 1/8 inches

Product Description

The STI EP44 SpecSeal EP Powershield Electrical Box Inserts are high-performance intumescent firestop inserts designed for direct installation against the back of steel electrical boxes. These inserts provide a reliable method for enhancing fire resistance at electrical box penetrations in fire-rated wall assemblies. Ideal for commercial, multifamily, and institutional applications.

• 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

Product Highlights

Enhance fire resistance with easy-to-install SpecSeal EP Powershield Inserts, perfect for new or existing electrical boxes.

Product Information

Standard Information

• Brand: STI
• Manufacturer Part Number: EP44
• Country of Origin: USA

Technical Specifications

• Color: Red
• Expansion Begins: 350 F (177 C)
• Expansion Range: 350 F (177 C) to greater than 1,000 F (538 C)
• Volume Expansion: 16x to 24x (free expansion)
• In Service Temperature: Less than 130 F (54 C)
• Storage Temperature: Less than 130 F (54 C)
• Oven Aging: No Change (60 C)*
• Humidity Exposure: No Change (60 C, 98% R.H.)*
• STC Rating (ASTM E 90-04): 64 (Relates to specific construction)
• Shelf Life: No Limit
• Depth: 1/8 in
• Type: Fire Stop, Putty
• Width: 3 3/4 in
• Mounting: Box
• Height: 3 3/4 in
• Range: 2 hr
• Manufacturer: STI Firestop
• Model (SKU): EP44