Smooth this tape over holes, gaps, and seams in fire-rated walls, floors, and ceilings to form a seal. It’s tested to ASTM and UL standards for stopping the spread of smoke and flames. It’s also watertight, so it prevents leaks if you need to extinguish a fire. Designed to resist vibration, this tape flexes with movement rather than cracking or pulling away from surfaces. To apply, cut to size and peel off the liner.

Cut these sheets to any size and shape you need to seal large openings in fire-resistant walls and floors. They’re often used to fill the space around pipes, conduit, and ducts. These sheets are tested to ASTM and UL standards for stopping the spread of smoke and flames. Made of steel, they have a firestop coating that expands when it’s heated. If the equipment passing through these panels melts or shrinks during a fire, this coating will fill the gaps.

Use shears to cut these panels to size, then fasten to your surface with No. 10 self-drilling sheet metal screws (not included). Fill any gaps around the sheet with fire-stop caulk (sold separately) for a tight seal. Once they’re installed, you can paint over them without losing fire protection.

Seal glass windows in metal and wood fire-rated doors. Also known as glazing tape, it has an adhesive back with a peel-off liner.

No need to drill mounting holes, this weatherstripping has a peel-and-stick adhesive backing. Mount it to the sides and top of a door or window frame to seal gaps. The adhesive is made of acrylic for a waterproof and weatherproof bond.

Bulb seals conform to doors, compensating for irregular surfaces. They restrict airflow better than flat seals. Made of silicone, they withstand high temperatures and UV rays.

Finned seals have two flat fins that create multiple sealing points against a door. They compensate for uneven surfaces better, insulate better, and last longer than flat seals. Made of TPE, they resist UV rays like silicone bulb seals and withstand abrasion, tears, and solvents better. However, TPE will deteriorate and crack at temperatures above 250° F.

Flat seals are made of a graphite/rubber blend, which expands by as much as 10 times their original thickness in extreme heat to completely seal out flames. Also known as intumescent seals, they’re commonly used in fire doors, which often have a built-in groove shaped to fit them.

V-strip seals are made of stiff, folded material. One arm mounts to your door frame while the other presses firmly against the door to block airflow. They’re also known as tension seals. Bronze seals are durable and corrosion resistant, and often used on historical buildings to match the existing design. Stainless steel seals are stronger than rubber ones and more corrosion resistant than bronze ones. Often used in marine environments and food plants, they won’t degrade from contact with mild chemicals or detergents.

Seals that meet UL 1784 are rated for use as smoke and draft control gaskets.

Close gaps between the top of a fire-rated door and its frame to comply with NFPA safety regulations. This UL-certified weatherstripping is often used to modify existing fire doors that no longer meet fire codes, so they don’t need to be replaced. Weatherstripping consists of a bulb seal, a fire-stop strip, a flange, and two end plates.

When the door is closed, the bulb seal compresses against the door frame, forming a tight barrier. This seal blocks air and compensates for uneven surfaces better than flat seals. Made from silicone, it’s durable enough to hold up to daily wear and tear. It’s also UV-resistant, and it withstands temperatures up to 450° F. A fire-stop strip lines the opposite side to completely seal gaps during a fire. When temperatures rise above 375° F, the strip expands to eight times its original size.

The stainless steel flange resists corrosion from water and chemicals. Stronger than aluminum flanges, it holds its shape even when fire is present. End plates are used to cover gaps on the sides of the doors for a finished look from every angle.