Silicate Primer Clear 5L

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A primer for use on bare porous, unpainted masonry substrates.
Silicate Primer Clear

In detail

Earthborn Silicate Primer is ideal for masonry substrates that are bare, porous and previously unpainted. Can be used on substrates such as lime plaster, stone, pebbledash and concrete. Use Earthborn Silicate Primer with Easrthborn Silicate Masonry Paint to create a highly breathable and permanent chemical bond. Earthborn primers are water-based and virtually VOC free. To use, apply 1 full coat of Silicate Primer, 1 coat of 20% Silicate Primer and 80% Silicate Masonry Paint and finally 1 full coat of Silicate Masonry Paint. Do not use if temperature is below 8 degrees celsius.

Application Methods
Brush, Roller
Up to 7sq/m per litre 
VOC level
Touch dry
1-4 hours 
12-24 hours 
Suitable for...
Interior and exterior use 
Water & Detergent 

* Colours on screen may vary from actual paint

Additional information

Earthborn Ecopro Silicate Masonry Paint is a highly durable mineral paint that dries to a traditional matt finish. Highly breathable yet water resistant, it offers an alternative to lime based and conventional coatings. Used with Ecopro Silicate Primer it creates a permanent chemical bond with mineral substrates, resulting in a very long service life. Can be used on internal or external mineral surfaces.


Product data sheet available on request. Must only be used on porous mineral-based surfaces e.g. stone, masonry, pebble dash, render and plaster surfaces. Not suitable for use over non-mineral coatings e.g. conventional masonry paint. Surfaces must be clean, dry and dust / grease free. All non-mineral coatings and unstable material must be removed completely. We recommend coats of water-soluble distempers and lime paint/ wash are removed or washed down thoroughly. New lime render / plaster must be fully cured before priming (approximately 4 weeks per 5mm). NOTE: All adjacent glass, metal, ceramic etc. must be protected to avoid permanent damage.


  • Do not apply if temperature is below 8°C or expected to fall below 8°C within 24 hours of application.
  • Do not apply in direct sunlight.
  • Stir well before and during use. Paint can be applied with brush, roller or spray gun.
  • First prime with a single coat of Ecopro Silicate Primer followed by two coats of Ecopro Silicate Masonry Paint (first coat must be diluted with 10-20% Ecopro Silicate Primer).
  • Apply paint spreading evenly, ensuring a 'wet edge' is maintained and complete each wall / section in one go.
  • Apply the second coat in the opposite direction to the first coat.
  • Ensure each coat is dry before applying the next coat.