Metacaulk® Intumescent Putty Pads are a moldable, non-curing, one-component fire-rated material for through-penetration firestop systems. Therefore, when heated, Metacaulk® Putty Pads will expand, forming an insulating char.

In the event of a fire, Putty Pads prevent the spread of flames, smoke, gas, and water through penetration openings. Installers apply them by hand—no mixing or special skills are required..

Metacaulk® Putty Pads are rated for up to 3 hours in accordance with the ASTM E 814. UL 1479 and ULC/CAM4-S115M test standards.

Putty Pads: Various Applications

• Metal or Non-Metallic Outlet Boxes
• Metal or Non-Metal Electric Boxes
• Small Openings
• EMT Pipe
• Steel, Conduit, and Cabling (Telephone,  Power, Communications)

Putty Pads Features

• It is for interior use and does not contain Volatile Solvents, which makes it useful when installed in confined spaces or occupied areas. It does not contain Asbestos Fillers. The DOT Classification is Not Regulated.
• Applied by hand and Easy to install- Mixing is never required, and no special skills or additives are necessary for installation. Adheres to all ordinary building common surfaces
• The pads are rated for up to 3 hours in accordance with ASTM E814, UL 1479, and ULC/CAN4-S115-M fire test standards.
• They also have a Sound Transmission Class (STC) rating of 60.
• A single pad thickness of 1/8″ is sufficient to achieve a 1- to 2-hour fire rating.
• No additional putty material is needed to plug the end of each electrical metallic tube or conduit at its connection to the box.
• Required by Building Codes in rated partitions where horizontal separation of opposite-facing electrical boxes is under 24 inches

Firestopping Essentials That Work Together

When it comes to passive fire protection, these products are often purchased together to get the job done right:

• Wrap Strips – For sealing penetrations and pipe openings
• Joint Strips – Ideal for construction joints and seams
• Box Guards & Cover Guards– Protect electrical boxes and outlets
• Putty Pads & Sticks – Quick, moldable solutions for tight spaces

Contact us for more information on fire-stopping options.