Intumescent Seal
The invisible line of defence.
Adtech intumescent seals expand many times their original volume when exposed to temperatures above 150 °C, closing off the door perimeter and blocking flame, smoke and hot gases.
Available in graphite and hydrated sodium silicate chemistries, with or without integrated brush / fin smoke seals.
Features
- Expansion ratio up to 1:15
- Combined intumescent + smoke variants
- Self-adhesive backing for site retrofit
- Available in white, brown, black or grey
- Compatible with 30 / 60 / 120 min door sets
Applications
- Perimeter of fire door leaves and frames
- Glazing beads on fire-rated glazing
- Retrofit upgrades to existing timber doors
Related products
Fire Rated Doors
Steel and timber fire-rated door assemblies engineered for 60, 90 and 120 minute integrity ratings.
Fire Rated Glass
Optically clear fire-resistant glazing that maintains integrity and insulation against flames, smoke and radiant heat.
Fire Cable Barrier
Firestop systems for cable trays, conduits and mixed-service penetrations passing through fire-rated walls and floors.
Intumescent Sealant
Single-component intumescent mastic for sealing linear gaps, service penetrations and construction joints against fire.