
Alkali-Resistant Odorless Graphite Intumescent Strip for Railway Vehicle Fire Sealing. High Expansion Rate: Rapidly expands 10-60 times under fire exposure to effectively seal gaps. Odorless & Eco-Friendly: Made from pure virgin resin with no irritating smells or harmful additives. Customizable Shapes: Available in custom widths, thicknesses, and profiles to fit specific needs. Stable Performance: Expanded body remains stable under heat without crumbling or blowing away. Wide Hardness Options: Soft and hard grades available to match different application requirements. Multi-Scenario Use: Suitable for fire doors, windows, cables, ducts, and elevator shafts. Fast Sealing Action: High-purity graphite triggers immediate expansion to block flames and smoke. Clamping Installation: Non-adhesive design compatible with clamping installation methods.