SecilTEK Primer is specially formulated as a base coat for SecilTek Silicate Masonry Paint.
Silicate primer is used as a base coat for long-lasting paintwork on masonry walls. Apply one coat of SecilTek Silicate Primer and two coats of SecilTEK Silicate Masonry Paint. SecilTEK Silicate Primer is easy to apply with a brush or roller and dries in hours (although we advise applying no more than one coat per day). It can be used internally or externally on a wide range of mineral surfaces including lime and cement renders, gypsum plasters and stonework. Its also ideal for problematic areas such as damp basements.
Like limewash, silicate masonry paint soaks into the mineral substrate. In addition to this, the potassium silicate (waterglass) reacts chemically to form a microcrystaline bond; a process known as silicification. Silicate paints have a comparable thermal expansion co-efficient to a mineral substrate. This minimises the stresses and damage caused by differential expansion.
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