Intumescent Seals Ltd Based on an expandable graphite material, Therm-A-Seal
and Therm-A-Stop are not affected by moisture or carbon dioxide. They provide up to one
hour fire protection, mainly for fire resisting door sets.
Note: All sizes in mm
All the above products, where relevant, are tested to British
Standards 476: Parts S, 20, 22 and 31. 1
