Durability of Silicate Mineral Paints

Silicate mineral paints are those paints in which the pigments, fillers and binders are of mineral origin with the binder being Potassium Silicate (See our articles on “What are Mineral Paints?” and “What is Potassium Silicate?”). The mineral nature of Silicate Paints makes them extremely durable to weathering effects and impart excellent UV stability (See our article on “UV Stability of Zydex Silicate Mineral Paints and the Si-O-Si Bond“).

The penetrative nature of Potassium Silicate binder makes the coating an integral part of the substrate on which it is being applied provided it is porous and mineral in nature. This ensures that the paint cannot delaminate. This is demonstrated by a typical pull of adhesion test value of 3.5-4 N/mm2 (Acrylic paints range from 0.7-1.2 N/mm2).

Silicate paints exclusively use inorganic mineral pigments for their coloring properties. Due to their mineral nature these pigments are stable to UV and weathering unlike organic pigments typically used for coloring acrylic paints (See our article on “Non-Fading Property of Silicate Mineral Paints”).

The UV stability of the mineral bond and its penetrative nature combined with mineral pigments ensure Zydex Silicate Mineral paints do not peel off, flake or fade and instead weather gracefully like stone over decades!