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Perlite is not a brand name but a generic term for a naturally occurring siliceous rock. Perlite is distinguishable from other volcanic glasses when heat it to a suitable point, it expands from four to twenty times its original volume. This expansion is due to the presence combined water in the crude perlite rock. When quickly heated to above 1600 degrees F (871 degrees C), the crude rock expands in a manner similar to popcorn as the combined water vaporizes and creates countless tiny bubbles that account for the amazing light weight and other exceptional physical properties of expanded perlite. The expanded perlite's most distinguishing characteristics:is its white color. While the crude rock may range from transparent light gray to glossy black, the color of expanded perlite ranges from snowy white to grayish white. Expanded perlite can be manufactured to weigh to as light as 2 pounds per cubic foot (32 kg/m3) making it adaptable for numerous applications. Since perlite is a form of natural glass, it is classified as chemically inert and has a pH of approximately 7.

Chemical CompositionUnitResultsChemical Composition / RatiUnitResults

Si02 (Silisium Oxide)%74,330Rb20 ( Rubidium Oxide)%0,0151

Al203 (Aluminium Oxide)%13,190ZnO ( Zinc Oxide)%0,0151

Fe203 (Iron Oxide)%1,1500Na20 ( Sodium Oxide)%1,7700

CaO (Calcium Oxide)%0,8319NiO [ Nickel Oxide)%0,0019

MgO (Magnesium Oxide)%0,1360K20( Potassium Oxide) %4,4670

Cr203 (Chrome Oxide)%0,0194 CuO (Copper Oxide)%0,0065

MnO (Manganese Oxide%0,0735P205 ( Phosphorus Oxide )%0,0120

S03 (Sulfur)%0,0765 L.0.1%3,51

Ti02 (Titanium Oxide)%0,1334   

V205 ( Vanadium Oxide)%0,0016  

crude process ore


Sand blasting, foundry and steel industries, slag coagulant, special casting sand and mixtures, silica source

Expanded perlite



İnsulation at ambient & low temperatureFire and thermal insulation

Roofdecking, concrete floor fill, blocks, chimney lining, bitumized perlite, perlite asphaltCore filler in wallboards, cavity wall insulations, doorsRefrigeration plants,portable iceboxes,containers

Medium to high temperature insulationBoiler covering in quiltered mattresses and in hardsetting composition. Pipe covering in coaxial tubes and in compression modeled pipe half section

High temperature insulationFire insulation in safes, rooms, etc. foundry molds to reduce shrinkage. Holding heat in molten metal during delay in pouring. Exothermic topping.


Filter coat on pressure and rotary vacume filters


Beer,wine, hydrogenated vegetable oilCitric acid, sugar, oilsPharmaceuticals, fruit juices,alucose, chemicals, wort, swimming pool water

Medium density aggregate

Silica, pumice, vermiculite subsitute in lightweight aggregate concrete

Aeration moisture control

Horticulture, plant rooting, seed composts, growing medium, soil conditioner, packing for shipping nursery stock, hydroponics, flower support


oil adsorption for pollution control in refineries, factories and garages


soaps, cleaners, polishes, wheels, disks and rub


carrier of agrichemicals in petiscides and hermisides, fertilizer bulking, pelletized seed


plastics, texturing aggregate in paints, caulking compositions, explosives

Oil well treatments

oil well cementing and low density mud to prevent lost circulation of drilling fluids

Light weight aggregate constructions

bricks & tiles, pottery & lightweight refractories, calcium silicated products, non-load bearing fill in bridges, tunnels, floors, masonry, roofs, pipies, etc. tilt-up panels


poultry litter, animal feed


plasters, mortars, plaster boards, ceiling tiles and upper wall insulation


methane, liquid oxygen, nitrogen and other gases in containers, both for transport and in stationary plants

obsidian in perlite
foundry perlite
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