ASF S291 Intumescent Pressure Sealant

 S290 Acoustic Intumescent Sealant

 S291 Intumescent Pressure Sealant

 Socket Box Protection

 Pipe Wraps

 Pipe Collars

 FR Mineral Wool Board

ASF S291 Intumescent Pressure Sealant is an easy to apply waterborne permanently flexible acrylic emulsion sealant containing graphite which expands at temperatures above 135º C sealing around various penetrations and services to prevent the passage of smoke and flames.

ASF S291 Intumescent Pressure Sealant has been designed to expand in fire conditions to seal gaps & holes formed when services and substrates melt/fall away and maintaining the integrity of the fire barrier

ASF S291 Intumescent Pressure Sealant is an engineered sealant ensuring performance during service life with excellent adhesion and crack resistance when applied as recommended. ASF S291 Intumescent Pressure Sealant is suitable for both internal and external applications.  4 hour rating  Closes & seals plastic pipes  Tested in accordance with: BSEN 1366-3:2009