FireMaster® Expanding Feltis a flexible insulating felt product manufactured from low bio-persistent alkaline earth silicate (AES) fibres together with a small amount of organic binder and a special additive which, when exposed to heat, produces an immediate expansion in thickness. FireMaster® Expanding Felt will immediately expand a minimum of three times its original thickness on heating making it ideal for any application where assured fire protection is required under conditions of movement. Typical applications are construction joint sealing, penetration seals and fire protection pplications requiring thin layers of insulation. The product has been extensively fire tested for vertical and horizontal movement joint fire protection for periods up to five hours without loss of integrity and for use in structural fire protection panels for high-speed craft. Variations in the proportions of additives used allow engineering of expansion ratios to produce products with greater expansion than the standard product.Information provided by Morgan Advanced Materials |