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32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf

CONTENTS CONCRETE REPAIR CORROSION CONTROL GROUTS & ANCHORS PROTECTIVE COATINGS INDUSTRIAL FLOORING SURFACE TREATMENTS JOINT SEALANTS CONCRETE JOINTING JOINT FILLERS WATERPROOFING WATERSTOPS ROOFING TIMBER FLOORING ALPHABETICAL INDEX 335 Technical Data Sheet V 1.0 30-08-13 Butyl Mastic Butyl rubber mastic Description Selleys Butyl Mastic is a synthetic resin, butyl rubber based mastic which forms a smooth tough skin, but remains permanently plastic underneath. It is available in a 300ml cartridge in a range of colours. Uses x Sealing aluminium windows to masonry. x Sealing joints between pre-cast concrete panels or porcelain enamelled panels. x Sealing edges of all types of wallboards or wherever a permanent waterproof seal is required. x Sealing lap joints between metal applications with the inclusion of fasteners. x It is ideal for dust proofing cars, trucks, caravans, boats, etc. and is suitable for sealing cracks and gaps around brickwork, roofing and cladding. Features/Advantages x Remains permanently plastic under a smooth tough skin. x Versatile sealant with excellent adhesion to a variety of substrates without the necessity to prime. x Will not bleed into porous surfaces. x Non-sag in joints up to 12mm vertical joint. x Wide service temperature: -35°C to +65°C. x Excellent weathering characteristics. x Does not corrode metals. x Good water resistance. Instructions for Use/Application Instructions The following should only be used as a guide and the installer should apply all Australian Standards, BCA/NZBC requirements, and best practices when installing. x Surfaces to be sealed must be clean, dry and free from dust, grease, old mastic and flaking paint. If necessary clean with degreasing solvent such as white spirits. x Cut nozzle supplied at an angle and to the required opening. Cut end off nipple on cartridge, fit nozzle and insert in suitable caulking gun. x If sealing lap joints, apply suitable size bead of Butyl Mastic to one surface through the intended fasten line. Bring surfaces together squeezing the mastic bead out on both surfaces and mechanically fix join where necessary. x If sealing open joints, apply Butyl Mastic by forcing it into the joint ahead of the nozzle. This method aids in properly filling the joint and forcing mastic to wet on to the sides of the joint. If required, smooth surface with spatula dipped into mineral turpentine.


32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf
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