Intumescent seals are the very latest generation in fire seals; they boast a large range of new and exciting features. These seals are specifically designed for use within fire door assemblies for maximum impact. Fire door assemblies are often overlooked when you are protecting a building against fire, something that is vital to ensure that fire is not spread throughout a building.
An intumescent seal is assembled using a PVC casing, which contains an expandable graphite-based compound. This particular type of compound is completely unaffected from the moisture in the air; this ensures that the seal will always function correctly. Additionally the seal will not require any further protection during the installation of the intumescent seal.
Once the seal reaches a certain temperature from the heat of a fire, the expandable graphite compound that is located in the PVC casing will begin to release foam. This foam will then fill the door leaf to frame gap to ensure that a secure seal is made. The strong seal will then help stabilise fire door assemblies as they move and expand under the strong heat of the fire. This is the reason why more and more builders and construction workers are beginning to use intumescent seals.
Our range of intumescent seals have been tested to 30 or 60 minute ratings which means they are capable of withstanding fire and preventing the spread of fire for up to 30 or 60 minutes. If someone is trapped within a building, this could be the difference between life and death.
Intumescent Seals are available in wide choice of colours to enable them to blend into door frames perfectly without being intrusive on the design of your door. Available in a range of sizes, Fire Seal Store is certain that we have a suitable intumescent seal for all your requirements.