Imerys Talc

Talc is our planet’s softest known mineral. All talcs are lamellar, chemically inert, organophilic and water repellent, but no two talcs are the same. Their unique properties bring added performance to a wide range of products and processes.


Imerys talcs improve the mechanical and optical properties of floor and wall tiles, and allow producers to cut energy costs. They help the production of large-format tiles.

In refractories, Imerys chlorite-rich talcs form cordierites at lower temperatures and with higher thermal shock resistance than magnesite-based cordierites.

In automotive ceramic cordierites talc improves the properties of catalytic convertors and diesel particulate filters.

Paints and Coatings

Imerys talc products are multi-functional mineral pigments which are ideal for architectural and industrial waterborne and solventborne paints and primers, where they improve mechanical and optical properties and production processes.

It brings a range of benefits to color concentrates, inks, enamels, varnishes, putties, body fillers, mortars and asphalts.

Imerys talc products also bring many benefits to wood coatings, gel coats, adhesives, and sealants.


Talc is an excellent reinforcing filler in polypropylene and engineering thermoplastics for automotive parts, domestic appliances, E&E components and food packaging.

It is used for antiblocking in polyethylene; restores mechanical properties to recycled plastics; and is an ideal nucleating agent in biopolymers and semi-crystalline polymers.

Talc is added to wood-plastic composites – increasingly used as a sustainable substitute for lumber in outdoor decking – to improve structural integrity.


Talc is used in seals, hoses, membranes, cables, tires and other mechanical rubber goods to improve processing, permeability, weathering, electrical properties, fire resistance and mechanical properties such as tear.

In tires, high aspect ratio talcs improve the impermeability of inner liners, improving rolling resistance and contributing to better fuel efficiency.