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Fire 4hr Rated Sealant Mastic

Free shipping available!      Buy as a bundle and save 10% off

Fire 4hr Rated Sealant Mastic

39 in stock

Buy as a bundle and save 10% off

Fast Delivery

30+ Years Friendly Technical Support

5 Years Free Service

Installation, Service & How to Guides

3 Year Product Warranty

Australian Made for Australian Conditions

FyreFLEX® sealant (also known as firemastic or fire caulking) is water-based, acrylic sealant with intumescent properties designed to restrict the spread of smoke, heat and fire between rated walls, ceilings, and compartments.

With a fire rating of 4 hours per AS1530.4:2014 and an RW54 acoustic performance, this product comes in 300ml (tube), 600ml (sausage), and 10L (bucket) sizes.

Easily applied with a standard caulking gun, it is especially suitable for thin, hard to reach areas. FyreFLEX® works great for data communication cabling, power cables trays, steel copper piping, wall floor joints, and can be painted over if white (for finished walls plasterboard) or left as is if grey (for concrete applications).

Fire Extinguisher and Blanket Combo Packs

Upgrade to a Combination Pack and SAVE!

We have made available a range of Fire Extinguisher & Fire Blanket combinations to assist you.

Ideal for home, rental or short stay properties, caravans & campers.

VIEW COMBOS

Passive Products

Australia Made

Stop fire smoke and heat from travelling through cracks and gaps. Pipework Protection.

We carry a select range of Passive Fire Products.

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