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This foam sealant is specially engineered with fire-retardant additives that meet stringent international standards (such as GB 8624 B1, EN 13501-1). In the event of fire, it exhibits excellent resistance to flame propagation and is designed to be self-extinguishing upon removal of the ignition source. It forms a protective char layer that helps delay the spread of flames and hot gases through openings, making it a critical component for passive fire protection in door and window perimeters, thereby enhancing overall building safety.
Unlike standard insulating foams that remain soft, this product cures to a high-hardness, rigid structure with minimal long-term shrinkage. This provides outstanding mechanical strength and load-bearing capacity, ensuring that installed doors and windows remain securely fixed, resistant to sagging, and unaffected by wind pressure or operational stresses. The rigid seal also prevents compression over time, guaranteeing a permanent, gap-free fit.
The high-density, closed-cell structure of the cured foam acts as an effective sound-dampening barrier. It significantly reduces the transmission of airborne noise (such as traffic, urban sounds, and voices) through gaps around window and door frames. This contributes to a noticeably quieter, more peaceful, and comfortable indoor environment, meeting the growing demand for enhanced acoustic comfort in modern construction.
It adheres tenaciously to a wide variety of common construction materials including concrete, brick, wood, PVC, and metals. By completely filling irregular cavities and gaps, it creates a continuous air and weather barrier. This superior seal blocks drafts, moisture infiltration, and dust, dramatically improving the building's thermal insulation (reducing heating/cooling costs) and protecting against water damage.
This foam sealant is certified to meet stringent international fire safety standards, including GB 8624 B1 (China) and EN 13501-1 Class B (Europe). These certifications confirm that the product demonstrates excellent resistance to flame propagation and qualifies as a Class B1/B fire-retardant material suitable for use in building construction.
Unlike standard expanding foams that cure to a soft, flexible structure, this fire-retardant foam sealant cures to a high-hardness, rigid form with minimal long-term shrinkage. This means it provides superior mechanical strength, better dimensional stability, and a more durable, permanent seal around door and window frames.
This foam sealant adheres tenaciously to a wide range of common construction substrates, including concrete, brick, wood, PVC, and various metals. Its strong multi-surface adhesion makes it ideal for sealing gaps and cavities around door frames, window installations, pipe penetrations, and other structural joints.
Yes. By creating a continuous airtight and watertight seal around windows and doors, this foam sealant effectively blocks drafts, moisture infiltration, and dust. This significantly improves the building envelope's thermal insulation performance, reducing heat loss in winter and heat gain in summer, which translates to lower heating and cooling energy costs.
Absolutely. The high-density, closed-cell structure of the cured foam acts as an effective acoustic barrier. It significantly reduces the transmission of airborne noise — including traffic sounds, urban noise, and voices — through gaps around window and door frames, contributing to a quieter and more comfortable indoor environment.
Yes, this product is specifically designed as a critical component for passive fire protection. When exposed to fire, it forms a protective char layer that helps delay the spread of flames and hot gases through structural openings such as door and window perimeters. Its self-extinguishing properties upon removal of the ignition source make it highly suitable for fire-rated construction assemblies.
