Mineral paint was invented in 1878 by Bavarian scientist, Adolf Wilheim Keim, and granted a royal patent. Today, Keim are the world leading specialists in mineral paints and are at the forefront of development to improve the properties of paint itself and increase the spectrum of naturally-sourced colours.

Liz Michael chose to work with Keim for the simple reason that they are the pioneers of mineral paint and produce the highest quality products. Tradition and innovation makes Keim unique as a company and their heritage speaks for itself.  Liz wanted a pure product, but also with the colour depth and vibrancy only achieved with a mineral paint.

Mineral paints are comprised of potassium silicate (or water glass) and natural earth oxide pigments. They contain neither solvents nor petrochemical derivatives, do not give off toxic gases and are incombustible.

Mineral or sol-silicate paints as they’re technically called, chemically react with the underlying surface, forming a permanent bond through the process of silification. The addition of silica sol enhances the adhesion of mineral paints and increases their scope to include application onto previously painted mineral surfaces.

Emulsions and acrylic paints differ as they effectively only adhere to the surface.  Film-forming coatings can trap moisture and eventually flake from the surface, whereas the microporous structure of mineral paint permits the passage of moisture vapour whilst preventing water from entering the substrate. This triples the paint’s anticipated lifespan.

Mineral paints have a completely matte finish, however the micro-crystalline structure provides high light reflectance and colour luminosity, giving a bright and clean appearance. The ultraviolet stability of earth oxide pigments results in no colour fade over time, proved by examples over 100-years-old.

Gris Mineral Paints are produced exclusively by Keim Mineral Paints Ltd, UK. They are natureplus certified.

  • Description

    A ready to use sol-silicate interior paint with earth oxide colour pigments giving intense light fast colour shades. Suitable for use on previously painted and unpainted surfaces. Not suitable for wood, metal or plastic. Flat matte colour which is odourless and breathable with a high moisture vapour permeability. Acrylic and preservative free. Resistant to mould and mildew. Non flammable. Environmentally friendly. Cruelty free. natureplus certified.

  • Preparation

    Any loose, flaking and unstable material must be identified and then thoroughly removed using stiff brushes and broad bladed scrapers to get back to a sound edge.  The edges should then be feathered in.

    Ensure that any paint materials left remaining and the underlying substrate is sound and adhering well.

    Gloss or shiny surfaces should be thoroughly flattened down using sand paper.

  • Repairs

    Any cracks should be filled with a mineral based filler.  Acrylic, silicone or polymer fillers are imcompatible with mineral paint.

    We recommend Keim Dolomitspachtel available from keimpaintshop.co.uk

    Dampen surfaces with a sponge or cloth using clean cold water.  Apply Keim Dolomitspachtel by brush or trowel.  Allow a minimum of 15 days to dry before sanding smooth and remove surface dust using a soft cloth.

    Newly rendered or repaired surfaces should be left for a minimum period of 15 days prior to the application of Gris Mineral Paints.

    A minimum of 28 days for lime based repairs and then prime with Keim Granital Dilution 12 hrs prior to painting.

    Apply a single coat of Gris Mineral Paint with a brush, roller or airless spray.

    A minimum of 12 hrs must be observed before applying the final coat.

  • Application

    Materials must not be applied at temperatures below 5 degrees celsius nor in excess of 30 degrees celsius.

    Two coats are recommended and a minimum of 12 hours between coats is essential to ensure adhesion. It is important to observe the technical data sheet before application.

    Always maintain a wet edge throughout the application of Gris Mineral Paints and work starting from the corner to a natural break line.  Do not cut in.

  • Paint Disposal

    Do not empty into drains. Unused paint may be left to dry to a solid form and disposed of according to official regulations. Mineral paint is biodegradable.

  • Recycling

    Our containers are made from 100% recycled plastic. Recycle in compliance with local regulations.