Intumescent Duct Wrap 308 x 29mm

Tested to BS 476: Part 20&22. Up to 2 hours fire rated.

Duct Wraps are economical, easy to fit and are unaffected by moisture, humidity or frost. NHBC Type Approval.
Flexible strips of high performance intumescent material encapsulated in a polythene sleeve designed for wrapping around plastic ducting that passes through brick or blockwork walls. On exposure to fire the Duct Wrap expands rapidly inwards to squeeze the collapsing duct until the aperture is completely sealed.

The Duct Wraps have been independently tested in accordance with BS 476 Part 20 and 22: 1987 and can provide up to 2 hours fire resistance dependent on application. The Duct Wraps are cut into 4 sections and then sleeved to help ease of fitting around rectangular ducting. Astroflame Duct Wraps are economical, easy to fit and are unaffected by moisture, humidity or frost.