
Heat-Expanding Odorless Intumescent Fire Door Seal Strip for Pharmaceutical Plant Fire Protection. High Expansion Rate: Expands 10-60 times rapidly under fire exposure to seal gaps effectively. Odorless & Eco-Friendly: Made from pure virgin resin with no irritating smells or harmful additives. Customizable Dimensions: Available in custom widths (3-50mm), thicknesses, and shapes to fit specific needs. Stable Performance: Expanded body remains stable under heat without crumbling or turning to ash. Customizable Hardness: Offers soft and hard grade options to match different application requirements. Versatile Applications: Suitable for fire doors, windows, HVAC ducts, cables, and elevator shafts. Logo Customization: Supports on-demand customization including LOGO, color, and appearance size.