Intumescent Strips

Intumescent fire door seals are designed to expand around doors to seal gaps in the event of a fire and are an essential component in maintaining the integrity and performance of fire doors. Our range of intumescent door strips has been rigorously tested and certified for use on fire doors, so you can fit with confidence.

For information on fire door compliance see our Ultimate Guide to Fire Door Hardware here

Intumescent Strips FAQ's
Are intumescent strips fire rated?

Yes, intumescent strips are fire rated and come in various fire-resistance classes. The fire rating will depend on the type of strip and the application. Ratings typically range from 30 minutes to 2 hours of fire protection.  

Strips must be manufactured and tested in accordance with BS476 pt22 and BS EN 1634-1. 

What is intumescent material?

Intumescent material expands and forms a dense char when heated or exposed to fire, increasing its volume and decreasing in density. This expansion is called intumescence.