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FAQs

Intumescent Mastics & Sealants

What is the minimum and maximum gaps FAS Fire Door Silicone Sealant can be used in?

For FD60 ratings this can be used to fill widths up to 30mm if used with FAS Fire Door Foam™ or a stone
mineral fibre wool. Contact our team for information on other applications.

What fire rating does FAS Fire Door Intumescent Acrylic Sealant offer?

FAS Intumescent sealant has been fire tested from 30 to up to 120 minutes (BS476 Pt 20&22: 1987 & BS EN1634-1) in timber and timber glazed screens.

Do you have to install FAS Fire Door Silicone Sealant with specialist packers or fixings?

No, FAS Fire Door Silicone Sealant has been tested with Fire Door Foam™ with plastic packers and standard
screw fixings. Timber packers may also be used where required.

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