Intumescent Kits

Essential Fire Door Protection

Intumescent kits are a vital component of fire door safety. Designed to expand under heat, these kits seal gaps around locks, hinges, and hardware to prevent fire and smoke from spreading through door assemblies. They are typically required when installing locks, latches, hinges, or closers into FD30 or FD60 fire-rated doors, ensuring compliance with fire safety regulations.

Our intumescent packs are pre-cut or sheeted and available for DIN locks, euro locks, bathroom locks, hinges, and more — in self-adhesive, graphite or foil-backed finishes.

✅ Key Features:

• Required for fire-rated door sets (FD30/FD60)

• Expands in heat to maintain door integrity during a fire

• Kits available for locks, latches, hinges, and closers

• Made from graphite-based or intumescent foam materials

• Self-adhesive and easy to fit behind hardware

• CE-marked and tested to BS EN 1634-1 & BS 476 standards

📘 Intumescent Kits – FAQs

❓ What is an intumescent kit?

An intumescent kit is a fireproof pad or liner fitted behind door hardware to expand during fire, sealing any gaps and slowing the spread of flame and smoke.

❓ When is an intumescent kit required?

They're legally required when fitting locks, latches, hinges, or closers into FD-rated fire doors, as cutting into the door can compromise its fire integrity.

❓ What does FD30 or FD60 mean?

These refer to fire door ratings:

• FD30: 30-minute fire resistance

• FD60: 60-minute fire resistance
  Intumescent protection must match the door’s fire rating.

❓ Are kits specific to the lock type?

Yes – most intumescent kits are tailored to specific lock cases (e.g. DIN standard locks, euro deadlocks), ensuring full coverage and easy installation.

❓ How do I install an intumescent kit?

Most kits are self-adhesive. Simply apply them to the relevant face or internal cavity of the door before fitting the hardware.

❓ Do I need kits for hinges too?

Yes – hinges, closers, and letterplates on fire doors also typically require intumescent protection to comply with regulations.

❓ Are they tested and certified?

All our intumescent kits are fire-tested and CE marked, complying with BS EN 1634-1 or BS 476 Part 22 fire door regulations.