Welcome to Imerys Performance Additives Division

Stain blocking and barrier properties

Stainblocking & barrier properties Ultra lamellar Imerys minerals for superior stain-blocking performance

Ultra lamellar Imerys talcs and micas provide exceptional barrier properties in stain-blocking paints and primers.

Paints & coatings

The highly lamellar particle shape of these minerals creates a physical barrier which protects the paint substrate by impairing the diffusion of water and corrosive agents through the film, preventing stain migration over time.

Stain migration over time

Stain migration diagram

Our SteaShield 10 talc grade is produced using an innovative, proprietary, milling process which dramatically increases lamellarity.

SteaShield 10 provides exceptional barrier properties in finishing paints and primers.

Our Mica MU M2/1 product is a highly lamellar grade with a 20µm top cut. Mica MU M2/1 is recommended for primer applications.

Both SteaShield and Mica MU M2/1 are cost-effective, easy-to-formulate stain-blocking solutions that function with both solvent and water-based systems.

We offer a full range of bespoke formulation and technical and process support services to help you match the right mineral grade to your application requirement.

Please contact us, we will be only too happy to help.

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Coatings & Construction