Acrylic masonry paint is a relatively inexpensive paint that’s quick to apply and can go over any previously painted surface.
Due to its plastic content however, these ‘modern’ masonry paints have a low level of breathability meaning water vapour can’t easily pass through the painted surface. Invariably over time, water will find its way through hairline cracks in the surface where it can become trapped in the walls, eventually causing the paint to flake and bubble.
Earthborn’s Silicate Primer and Silicate Masonry Paint on the other hand, has a breathability level similar to that of limewash, making it ideal for older properties, conservation projects and lime render. It is regularly used on listed buildings and heritage properties. A chemical reaction with the mineral substrate means that when used together, the paint and primer form part of the surface, so it is highly durable and weather resistant. It won’t flake off and unlike limewash doesn’t need reapplying every few years. Silicate paint is naturally alkaline so resists algae growth and is non-yellowing.
Our Bonding Primer allows Silicate Masonry Paint to be painted over conventional acrylic masonry paints, please be aware the walls are not breathable.