Rooflex Sealant is a gun applied polyurethane roof and joint sealing compound with outstanding resistance to weathering and joint movement.
Use on: Asphalt, bitumen, felt, asbestos, concrete, roofing tiles, slate, brick, stone, cast iron, galvanised steel, aluminium, lead, zinc, glass and timber Use where: External repairs to joints, gaps, cracks and holes prior to coating
Coverage: Joint size 6mm x 6mm - 380ml Cartridge will cover 21.1m Cure time: 20 minutes @ 20oC/65% relative humidity, Rooflex Sealant will form a tack-free skin after and cure at a rate of 2mm per 24 hours. Special features: Excellent adhesion, extra flexibility, UV resistance, waterproof
Application temperature: 5oC to 35oC Number of parts supplied: 1 Priming required: Seal porous surfaces with Rooflex Primer first to prepare the surface and to improve adherence and coverage
Please consult the technical data sheet for full technical product data.Rooflex Sealant Safety Data Sheet Size: (114.31 KB) Rooflex Sealant Technical Data Sheet Size: (213.09 KB)
Thorough joint preparation is essential.
For optimum joint movement accommodation, the joint must be NOT LESS THAN 6mm wide. Narrower joints and cracks subject to movement must therefore be raked out and opened out to this minimum size. The prepared surface should be dry, clean, sound and free of flaking or loose material, moss or fungal growth. Any previous joint sealant material should be removed.
Porous surfaces should be sealed with SP Primer before applying Rooflex Sealant.
A single coat of SP Primer should be applied if appropriate using a clean dry brush and allowed to dry for 60 minutes. Rooflex Sealant should then be applied as soon as possible and in any case within 8 hours.
Apply using a caulking gun. Cut the nozzle at an angle to facilitate the placing of the sealant.
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