Perlite is the name of a naturally occurring volcanic rock and with special heating Perlite expands to Expanded Perlite. With heating at 1100°C Raw Perlite expands up to 20 times of its original volume and it now becomes a white sterile lightweight product with many great properties. Perlite has been used more than 65 years in all over the world. Techfil Expanded Perlite is a clean product without any chemicals, each particle contains countless of tiny glass-like bubbles. Here at Techfil we produce a vast amount of ranges for Expanded Perlite Grades; from our superfine powders starting at 0.075 microns up to our large grains at 10mm.
Perlite is used as an active filler in paints, coatings and grouts. It is also used as an additive in textured coatings and plasters due to its lightweight and insulating properties. As it is inert and non-flammable it is extensively used in fire proofing and chimney lining applications. Perlite filter aids are used in the treatment of industrial effluents usually in a filter press system.