> Question & Answers about Astroflame intumescent seals
What are intumescent seals?
Intumescent seals are materials that expand significantly when exposed to heat, such as during a fire.
This expansion helps to close gaps around fire doors, preventing the passage of fire and smoke.
They are a form of passive fire protection, meaning they work automatically without needing human intervention.
Why are intumescent seals important for fire doors?
Fire doors are designed to contain fires, and intumescent seals are a key component in achieving this.
They help to maintain the fire and smoke resistance of the door assembly.
Without them, gaps around the door can allow fire and smoke to spread, potentially causing significant damage and endangering lives.
What types of intumescent seals are available?
Fire-only seals: Expand under heat to block fire.
Fire and smoke seals: Expand under heat and also include a brush or rubber seal to block smoke at ambient temperatures.
What are the key things to remember?
Always use the correct type of intumescent seal for your fire door.
Regularly inspect and maintain the seals.
If you are unsure about any aspect of intumescent seals, consult with a fire safety professional.
WHAT ARE INTUMESCENT SEALS : WHY ARE INTUMESCENT SEALS IMPORTANT FOR FIRE DOORS : WHAT TYPES OF INTUMESCENT SEALS ARE AVAILABLE : WHAT ARE THE KEY THINGS TO REMEMBER : ASTRO STRIP : INTUMESCENT FIRE SEALS : FIRE SEALS : FIRE STRIPS : ASTRO STRIP FO - FIRE ONLY SEALS : ASTRO STRIP FS - FIRE AND SMOKE SEALS (BRUSH TYPE) : ASTRO STRIP SB - SINGLE BLADE SEAL : ASTRO STRIP TB - TWIN BLADE SEAL
> Delivery/Returns
For in-stock items orders received before 2pm (Monday-Friday) are generally dispatched for delivery on the following working day (Monday-Friday). All dates quoted for despatch are estimates only and are not guaranteed. We will endeavour to meet these dates but shall have no liability for any delay in despatch or delivery or any damage or loss occasioned thereby. We may deliver products pursuant to any order by instalments. If we are unable to deliver the goods for any reason,you will be contacted and you will not be obliged to pay for the goods which have not been delivered, you also have the option to cancel the goods that have been delivered, however we shall not be liable for any loss of income or profit which may have been caused by the delay or non delivery of goods.
For information about our returns policy please click here.
> Ask a Question
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Web Page Last Modified: 10th July 2025