Heat-Resistant Odorless Fireproof Expansion Seal for Fire Door Sealing

Heat-Resistant Odorless Fireproof Expansion Seal for Fire Door Sealing. High Expansion Rate: Rapidly expands 10-60x under heat to effectively block flames and smoke. Odorless & Eco-Friendly: Made from pure virgin resin with no harmful additives or irritating smells. Stable Performance: Expanded body remains stable under heat without crumbling or turning to ash. Fully Customizable: Custom widths, thicknesses, shapes, grades, and expansion ratios available. Versatile Applications: Ideal for fire doors, windows, MEP systems, and electrical energy storage. High Compressive Strength: Features 20 Mpa compressive strength for durable fire sealing performance.