Fireproofing product supplier since 1998

UL Firestopping

Intumescent firestopping is a critical component in ensuring the safety and integrity of buildings in the event of a fire. This innovative technology expands when exposed to heat, creating a protective barrier that helps to prevent the spread of flames, smoke, and toxic gases.

By investing in intumescent firestopping, businesses can not only protect their employees and assets, but also adhere to important building codes and regulations.

This proactive approach to fire safety demonstrates a commitment to creating a secure and resilient environment for all occupants. Embracing intumescent firestopping as part of a comprehensive fire protection strategy is a smart business decision that can provide peace of mind for both stakeholders and customers.

National Fireproofing Supply Co. have been providing comprehensive building protection solutions for over 25 years, including firestop products, to make buildings safer against fire from the foundation to the roof. Our UL Classified firestopping products includes caulk, putty pads, intumescent collars, and pillows. Ideal for mechanical, electrical, and plumbing penetrations of any size. Achieve top-notch fire protection with ease.

  • $37.00$110.00

    Intumescent Fire-rated Putty Pads  ■ Multi-family & commercial construction ■ Metal or non-metallic electrical boxes ■ As an acoustical pad

    • View Product This product has multiple variants. The options may be chosen on the product page
  • $14.95$265.00

    ■ This UL Classified fireproof caulk expands when exposed to fire or extreme heat, forming an insulated char barrier. ■ 4 hour

    • View Product This product has multiple variants. The options may be chosen on the product page
  • $130.00$375.00

    ■ Tested to ASTM-E814 (UL 1479) ■ Intumescent ■ 4 Hour fire rating ■ Ready-to-use ■ Easy installation ■ Technical

    • View Product This product has multiple variants. The options may be chosen on the product page
  • Fire stopping pillows are UL tested to maintain up to a 3 hour rating
    $195.00

    UL Firestop Pillows designed to firestop large open voids and openings made for penetrating items such as cables, cable trays,

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