Imerys are experts in the application of minerals for a number of industries - providing each of our customers with a wide range of customizable products and world class technical service:

Imerys Filtration Minerals is a world leading supplier of engineered mineral products derived from diatomaceous earth and expanded perlite, these natural raw materials possess unusually light density, chemical inertness, high surface area and intricate unique structures. Drawing on a wide range of minerals with many matching characteristics - including calcium carbonates, clays, kaolins, calcined kaolins, diatomite, mica and perlite - Imerys Filtration & Performance Additives makes technical products that are essential for many industries. Its principal markets are plastics & film, rubber.

Where can these filtration products be used?

Imerys Filtration offer a wide range of engineered mineral products derived from diatomite (also called diatomaceous earth or D.E.) and expanded perlite used in a host of applications, including filtration for liquid/solid separation. Perlites and DE filter aids are highly versatile and can be used across a number of industries due to their highly unique diatomic structures and low densities.


Product trade names and descriptions


High surface area, low density hydrous calcium silicate with very high liquid absorption capacity used as pesticide carriers, diluents, conditioning agent, ‘dry’ liquid concentrates, and anti-caking agents


Large range of diatomaceous earth products including natural, calcined and flux-calcined diatomite are used in a number of applications.

Specially designed grades have been developed for specific applications such as:

Celite Cynergy®

A diatomite-based beer stabilising agent that performs better at both filtering and chill-proofing than conventional use of diatomaceous earth and silica gel


Surface-engineered diatomite filter aid that gives it the necessary adsorption functionality to break down soap molecules other polar impurities. Alternative to using diatomaceous earth and a bleaching earth/activated cellulose


Cellulose based products ideal for rapid precoating, especially with old/damaged screens; offers a stable cake formation and drastically simplifies the precoat mixing

Hyflo SuperCel®

A Medium to fine grade of calcined diatomaceous earth used in the brewing industry, and can be used to filter cider, wine, water, low viscosity glues, organic chemicals and pharmaceuticals

Snow Floss®

Natural diatomaceous earth used for the flatting of paints and coatings, and for buffing and polishing

Super Floss®

Flux calcined diatomaceous earth with can be used as a highly absorptive filler for improving printing, as well as having amazing characteristics as a chemical catalyst support and anti-blocking agent in polyethylene production


Lamellar engineered perlite used as a premium functional extender for clear coats and wood finishes


Specially formulated natural mineral additives with low crystalline silica content


Eco-friendly natural matting agents


Expanded perlite filter aids


Cellulose based products ideal for rapid precoating, especially with old/damaged screens; offers a stable cake formation and drastically simplifies the precoat mixing


Perlite filter aids available in a number of grades ideal for high solids filtration and for precoating large and difficult filters


Specially formulated natural mineral additive used as a matting agent in paints and coatings




For detailed product information please see the below brochures available from Imerys Filtration: 



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