Boss Flexicoat-MAK Sealant

Boss Flexicoat-MAK Sealant has been developed for use on rockwool or elastomeric base. Once the FlexiCoat-MAK is applied it prevents the passage of fire, smoke and sound between fire rated compartments giving a fire resistance tested to -/120/120. FlexiCoat-MAK has also achieved 600Pa air permeability resistance testing and 450Pa water permeability resistance testing. Can be installed into voids/cavities up to 500mm wide.

FlexiCoat-MAK is a water-based elastomeric acrylic coating, having excellent fire, water, air permeability and elastomeric properties offering up to 50% movement. Ideal for spray, trowel, brush and pouring applications. For flexible installations 80kg/m3 rockwool should be used. At normal temperatures, FlexiCoat-MAK remains highly flexible to permit thermal and mechanical movement of services and the building structure. The product is unaffected by oil, fungus and contains no halogens, asbestos and contains low VOC’s.