Fireproof sealing strip

Fireproof sealing stripMade from polyvinyl chloride (PVC) as the core material, by adding flame retardants, plasticizers, and inorganic expansion core materials. Its structure is usually a double-layer design: the outer layer is a flame-retardant PVC coating, and the inner layer is an inorganic flame-retardant core material that expands when exposed to fire. The appearance of the product is mostly strip-shaped, with a smooth surface. The main colors are black and gray, and some customized styles can provide other colors. PVC material endows it with flexibility, while the expansion core material provides fire resistance, combining sealing and flame retardancy as a whole.

Performance Characteristics

Fireproof and flame retardant: When exposed to fire, the inner inorganic core material rapidly expands (increasing in volume several times), forming a dense carbonized layer that effectively blocks the spread of flames and smoke.

Strong weather resistance: the outer PVC coating is UV resistant and anti-aging, and can be used for a long time under the environment of -20 ℃ to 70 ℃, with a service life of more than 10 years.

Excellent sealing performance: When not exposed to fire, the soft PVC material can tightly fit the gaps, achieving dust-proof, soundproof, and thermal insulation effects.

Environmental safety: Complies with environmental standards, does not release toxic gases (such as dioxins, HCl) during combustion, and reduces harm to human health and the environment.

Easy installation: Comes with self-adhesive adhesive layer or can be fixed with specialized glue, no need for complex tools, suitable for fast construction.

Fireproof sealing stripApplication field

Building fire prevention: used for sealing the perimeter of fire doors, fire windows, and fire shutters to block the spread of fire and smoke through gaps.

Curtain wall and wall: Fireproof sealing of glass curtain wall joints, building partition wall joints, and expansion joints to maintain the integrity of fire compartments.

Pipeline perforation: The sealing of cables, pipelines passing through walls or floors to prevent flames from spreading along the pipeline.

Special scenarios: elevator shaft gaps, steel structure fireproof coating joints, etc., suitable for various building fire prevention needs.