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Derived from a volcanic glass called Perlite, the raw material is expanded in a special furnace to create millions of small, well-sealed Pratliperl® beads. Each bead has a small vacuum inside, giving the product its unique thermal insulation properties. The thermal insulation of a two-leaf (220 mm) brick wall can be doubled, for example, by simply plastering the inside and outside with.
Applications range from underfloor insulation and insulated roof decks to lightweight screeds on corrugated iron or concrete roofs, fireproofing structural steel columns, insulating cryogenic tanks, loose-fill thermal insulation in wall cavities and lightweight tile adhesive filler.
Specified for lightweight plaster and screeds, Pratliperl® has been pretreated to enable it to mix with ordinary cement. It is also resistant to spalling under fire conditions, which improves the integrity of structures and enhances health and safety. The product can withstand temperatures up to 1 250°C without comprising its structural integrity.
Once cured, Pratliperl® has superior strength compared to conventional lightweight concrete. Compatible with cement and other binders, it can be used to produce ultra-lightweight panels, boards, bricks, and blocks that can be cut, nailed and drilled.
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Notes to the editor
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About Pratley
Established in 1948 by George ‘Monty’ Pratley, the various companies in the Pratley stable rest on a foundation of research and innovation in both the manufacturing and mining sectors. The various Pratley companies, drawing from 70 years of experience, have filed over 350 patents worldwide, and are ISO 9001 certified. Operating divisions are Pratley Adhesives, Pratley Electrical, Pratley Analytical, Pratley Perlite & Zeolite Mining, Pratley Craft & Decoupage, Select Hairdressing Supplies.
Pratley Contact
Sales
Phone: (011) 955 2190
Fax: (011) 955 3918
Email: sales [at] pratley [dot] co [dot] za
Media Contact
Renay Tandy
NGAGE Public Relations
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Email: renay [at] ngage [dot] co [dot] za
Web: www.ngage.co.za
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