XHF301

The XHF301 is engineered specifically for high-traffic entrance and interior doors, this 10 mm wide seal provides a hard-wearing solution that prioritizes structural longevity and extreme fire containment.

Mechanical Resilience and Protection: Unlike foam-based seals, the PVC material of the XHF301 is designed to withstand the physical rigors of industrial and commercial environments. The rigid casing protects the sensitive intumescent core from moisture, cleaning chemicals, and mechanical abrasion during daily door operation. This ensures that the seal remains aesthetically clean and physically intact for years, while still providing the necessary elasticity to offer basic cushioning and draught-proofing under normal conditions.

Intelligent Barrier Activation: The XHF301 is a reactive safety device that remains dormant until it detects the heat of a fire. Once temperatures surpass the 200°C threshold, the internal core initiates a chemical expansion. At 301°C, the main expansion phase occurs, forcing the intumescent material to swell to at least three times its original 2 mm thickness. This rapid growth creates a high-pressure, carbonized barrier that hermetically seals the door perimeter, blocking the spread of flames and extreme radiant heat between building compartments.

Superior Gas and Smoke Containment: In emergency scenarios, the XHF301 serves as a critical life-safety barrier. It is lab-verified to prevent visible smoke leakage for over 90 minutes, keeping toxic fumes confined to the fire source. With a thermal endurance rating of 980°C for 30 minutes, it maintains its physical presence long after standard gaskets would have disintegrated, ensuring that fire-rated doors and windows function exactly as intended during the most critical moments of an evacuation.