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Quality Products

We have over 25 years of experience, so quality is guaranteed.

Competitive Prices

We offer competitive and fair prices to our clients.

Professional Support

We provide expert product support to ensure you have the assistance you need.

Flexible Payments

We offer secure multiple payment options for your convenience

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UL Classified Firestopping Products

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About Our Products

Built-In Fire Safety with Passive Fire Protection Products

Our passive fire protection products stop smoke and flames from spreading through openings behind wall cavities or through openings where pipes, wires, duct, etc. pass through the walls, ceilings and floors. These special materials are inactive under normal temperature conditions but will react when exposed to heat. Upon exposure to heat, they will quickly expand and seal off the openings, thereby serving to contain the fire and protect the basic structure of the building. This affords the people time to escape and assists the fire department in bringing the fire under control.

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Why Choose Us

Customer Service

We offer detailed information about our products to help you calculate what you need for your project, and give you practical advice. Our goal is to make sure your project gets done smoothly and meets the best quality standards.

Valuable Prices

We work closely with trusted manufacturers and have a smart sourcing network—so you can count on us to help you finish the job on time and within budget.

Quality Materials

Our fire-retardant and intumescent products have been tested and certified across a wide range of materials and assemblies. All testing is done through trusted, accredited labs so you can count on proven, reliable performance

Next Day Delivery Available

Get the supplies you need to move your project forward on time! Guaranteed next day delivery with services like UPS Next Day Air, Next Day Air Early, and Next Day Air Saver, which deliver to all 50 states and Puerto Rico.

Our Markets

Industrial

Our products are made to perform in demanding environments. Our fireproofing solutions help industrial facilities achieve enhanced fire resistance, reduced risk, and long-term durability, ensuring both safety and efficiency across all operations.

Institutional

National Fireproofing Supply Co. provides a comprehensive range of fireproofing products designed to meet the unique safety and performance needs of institutional buildings, including schools, hospitals, government facilities, and universities.

Residential

Homeowners can utilize our variety of essential fireproofing materials to fortify their homes against potential fire hazards. Our intumescent coatings and sprays are essential fireproofing materials that can be applied to surfaces such as wood, fabric, and paper to enhance their fire resistance

Commercial

Our mission is to support builders, contractors, and developers with reliable, efficient, and cost-effective fire protection solutions that enhance building performance and safeguard occupants. With National Fireproofing Supply Co., commercial buildings benefit from proven protection, expert support, and long-term peace of mind.

Latest posts

The challenges of achieving fire resistance for exterior wood decks include the inherent combustibility of wood, the limitations and maintenance…

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A building's passive fire protection system is like a silent guardian. It works well because of many details, like sealing holes. Pipes and conduits passing through walls or floors can let fire and smoke spread. This is why firestop collar installation is crucial. These devices keep the fire rating of the assembly they protect. If installed wrong, it can risk lives and property. This guide shows you how to install UL Classified Pipe Collars the right way. We'll cover everything from understanding the classification to making sure it's done right. You'll learn how to plan, follow codes, and do each step with confidence. By following this guide, your penetration seals will work as they should. It makes a weak spot into a strong part of your building's defense. Key Takeaways Correct installation is essential for maintaining a wall or floor's fire rating. Firestop collars seal penetrations to prevent the spread of fire and smoke. This guide provides a professional, step-by-step method for a code-compliant seal. Proper planning and verification are just as important as the physical installation. Using the right materials and techniques ensures the system works as designed. Understanding UL Classified Pipe Collars A UL classified pipe collar is more than just a ring of material. It is a tested and labeled life-safety device designed to maintain a fire barrier. Using the correct, certified product is the foundation of any safe and code-compliant installation. This knowledge ensures you select the right collar for the job and understand why cutting corners is never an option. What Are Firestop Pipe Collars? Firestop pipe collars are devices installed where pipes, conduits, or cables pass through fire-rated walls, floors, or ceilings. Their sole purpose is to seal the annular space—the gap between the pipe and the opening in the structure. They typically contain intumescent material or firestop sealant. In a fire, this material expands or hardens. This action creates a charred seal that blocks flames, deadly smoke, and toxic gases. This process is a critical part of a penetration firestop system. It restores the integrity of the compromised fire barrier, containing the fire to its area of origin. Why UL Classification Matters for Fire Safety You cannot assume any collar will work. Building codes require firestop products to be listed and labeled by an approved testing agency, like Underwriters Laboratories (UL). Using an unclassified or improperly specified collar voids the fire-resistance rating of the entire assembly. It creates a false sense of security and a real liability.…

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Historic wooden bridges provide priceless links to the past, but preserving them is a challenge, especially concerning fire safety. Antiquated…

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