PERLITE: GENESIS IN FIRE

Directory of Applications for Perlite

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By nature of its mineral DNA and light, frothy nature, expanded perlite is widely useful as a component in many industrial and consumer products. Even pre-expansion, as crude ore—crushed to spec—perlite has application in industry. Below is a list of various uses and applications for expanded perlite linked to detailed information pages for each application.

As a Lightweight Aggregate

Perlite is used as an extremely lightweight aggregate for insulating concrete in roof decking, floors, decorative stone products, bricks and tiles, tilt-up panels, pottery, cast sculpture, and more. By following specific procedures, typical ready-mix batching equipment and trucks can be used for perlite concrete.

» Perlite Aggregate in Lightweight Ready-Mix Concrete

» Perlite in Manufactured Stone Products

» Insulating Roof Decks

» Well Cements

» Storage Tank and Pool Bases

As an Insulator

As a lightweight insulator, perlite is incredibly versatile, meeting a variety of insulating needs—from the super-cooling demands of cryogenics to ambient and low temperature applications up through intense high temperature demands such as foundry cores, molds and even as a crucible topping. Perlite is non-combustible, with fusion point of 1260 degrees C (2300F) and is an ideal loose-fill or spray-on fire-proof insulation for safes, safe rooms, doors, pizza ovens, and chimney linings.

» Cryogenic Applications

» Masonry Loose Fill Insulation

» Underslab Insulation

» Heat-Resistant Applications

» Fire-Protection Spray-on Coatings

In Horticultural Applications

Perlite is widely used in horticultural applications because of its lightweight water-holding capacity, neutral pH, and pathogen-free nature. Perlite is found in the engineered lightweight soils of roof gardens and planters as well as commercial and bagged potting soils. Perlite is used a soilless grow media for hydroponics, seed starting and plant rooting. Perlite also makes an excellent conditioner for native garden, turf, and landscape soils, enhancing both the water-holding capacity and anti-compaction properties.

» Water-Holding Capacity

» Roof Garden and Other Engineered Soils

» Potting Soils

» Soilless Grow Media

» Native Soil Conditioner

For Plasters and Textured Coatings

Perlite’s acoustical, fire-proofing, and insulative properties as well as its lightweight form factor make it an ideal sand-replacing aggregate for interior and exterior plasters and stuccos. Perlite also works to bulk and pattern textured coatings and finishes.

» Lightweight Insulating Plaster

» Perlite in Textured Coatings

For Waste and Spill Management

Perlite is used in environmental applications to absorb oil and to soak up and stabilize chemical spills and other liquid pollutants. Perlite is also blended with soil to filter stormwater runoff from paved surfaces, mitigate rainwater surge and erosion, and solidify liquid waste and industrial sludge for legal transport.

» Liquid-Holding Capacity

» Liquid Waste Absorbent and Solidification

» Environmental Cleanup

As a Filtration Media

Beer, wine, juices, chemicals, pharmaceuticals, oils, acids, sugars, bio-diesels, and water (potable, swimming pool, and storm runoff) are all filtered with perlite that has been expanded and crushed to form a complex maze of microscopic pathways that makes a highly-effective filter cake.

» Filter Aid

» Culinary Water Treatment and Filtration

» Water Quality and Stormwater Control

As a Lightweight Filler

Perlite serves as a lightweight filler for caulking compounds, paints, plastics, and explosives. When added to soaps, cleansers, polishes, dental compounds and stone wash wheels, perlite adds gentle yet effective abrasive properties to the product. Perlite is also added to plasters, ceiling tiles and walls to enhance sound absorption in these materials.

» Perlite in Formed Products

» Coating Applications

» Cementitious Panels

» Lightweight Perlite Plasters

For Sandblasting and as a Slag Coagulant

In its crude ore state, perlite has industrial uses—chiefly in the foundry industry and as a sandblasting media.

» Sandblasting Grit

» Slag Coagulant