Vermiculite is a hydrous phyllosilicate mineral which expands dramatically when heated. The expanded product looks like small, shiny pieces of popcorn that are usually gold or light brown in color. The product is valued for being inert, ability to withstand high temperatures and its water holding capacity.
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Frequently Asked Questions

Perlite and vermiculite use the physical surface area to absorb liquids.
Both of these materials are listed in the AFIA (American Feed Industry Association) and are also considered GRAS (Generally Recognized As Safe) by the FDA. The animal feed industry typically use these minerals as anti-caking agents, carriers of nutrients and medicines, and bulking agents.
No, The FDA considers perlite to be a food contact item.
These materials are considered acceptable to be disposed of in a landfill.
Our typical lead time is 2-weeks.
Expanded perlite is used as a loose-fill insulating material and is produced to an ASTM standard specific for the application.
Both of these minerals are used in concrete blends and have multiple applications. The minerals function to lower the density, increase insulating values, and improve workability.