Expandable—If a fire breaks out, they expand to seal any remaining gaps.

Cut-to-Size—Cut-to-size blocks can be customized to fill odd-shaped openings. They expand in all directions when exposed to flames, so you can cut them without reducing their fire protection.

Hook and Loop Attachment Strips—Blocks with hook and loop attachment strips can be locked together or taken apart easily, so they're good for creating temporary barriers. Their cover expands in two directions when exposed to flames. Do not cut these blocks, or they will lose their shape and fail to stop fire and smoke.

Flammability Rating—These blocks are tested to ASTM and UL standards for stopping the spread of smoke and flames.

Pads—Putty pads are often used to seal the area around electrical boxes. Mold them onto the sides of the box before installing it in a wall or floor.

Expandable—Often used to seal the area around PVC pipes or cables, it expands when heated to fill the gaps left if your equipment melts.

Flammability Rating—This putty is tested to ASTM and UL standards to stop the spread of smoke and flames.

Steel—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.

Paintable—Once sheets are installed, you can paint over them without losing fire protection.

Flammability Rating—These sheets are tested to ASTM and UL standards for stopping the spread of smoke and flames.

EPDM Foam—Made of EPDM foam, these seals resist water, sunlight, and ozone while also meeting transportation industry standards for flames, smoke, and toxicity. Softer and more flexible than EPDM rubber seals, they conform to uneven surfaces to guard against dust, noise, and vibration. The foam has a closed-cell construction, which resists absorption.

Expandable—When heated, plugs expand to fill any gaps left if the cables shrink or melt.

Paintable—Once they’re installed, you can paint them without losing fire protection.

Specifications Met—Plugs are tested to ASTM and UL standards for stopping the spread of smoke and flames.

Bulb Weatherstripping Seal—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.

Flat Weatherstripping Seal—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.

Finned Weatherstripping Seal—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.

V-Strip Weatherstripping Seal—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.

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

Flammability Rating—These collars are tested to ASTM and UL standards for preventing the spread of smoke and flames.

Vibration Resistant—Designed to resist vibration, this tape flexes with movement rather than cracking or pulling away from surfaces.

Watertight—This tape is watertight, so it prevents leaks if you need to extinguish a fire.

Flammability Rating—Tape is tested to ASTM and UL standards for stopping the spread of smoke and flames.