Silicone coatings are protective moisture-repellent films formed by applying special compositions based on silicone elastomers to the protected surface.
You can buy silicone protective coating "Silant" by sending an application directly to the manufacturer from our website.
There are many kinds of silicone coatings, each of which, because of the chemical composition and manufacturing technology is characterized by a specific set of useful properties determining the scope of its application. Some silicone coatings are used for protection of lacquer layer of a car from mechanical damages, other compositions are used for protection against moisture and prevention of corrosion of metal structures and printed circuit boards. Silicone protective coatings with high dielectric properties are in demand in electrical engineering.
Silicone protective coatings Silant-11, Silant-12 and Silant-21 are widely used for protection of radioelectronic equipment, metal, wooden, concrete structures.
Properties, characteristics, advantages of silicone coatings
Thanks to their unique properties and high consumer appeal these days silicone protective coatings (silicone paints) are becoming increasingly popular. The demand for these materials is due to their following advantages
- high elasticity - elongation at break can reach 400%!
- absence of internal stresses in the film due to high elasticity;
- hydrophobicity of silicone films - excellent protection against moisture;
- wide interval of working temperatures - cold-resistance up to -60 °?, temperature-resistance up to +250 °?, silicone films retain their original characteristics after multiple transitions through zero;
- Resistance to UV radiation;
- high vapor permeability;
- accelerated drying of the protective silicone film;
- high resistance to biofouling;
- manufacturability - easy application, self-leveling silicone coating;
- durability of the silicone protective coating;
- ease of repair, even in service.
With changes in ambient temperature most properties of silicone protective coatings are virtually unchanged, they retain their characteristics with sufficiently long exposure to temperatures up to 250 ° C. At normal temperatures the strength of silicone film is inferior to that of organic elastomers, but as the temperature rises the difference diminishes. Silicone-based protective coatings do not burn if they are not in direct contact with a fire source. The flash point is 300 °C, and the combustion product is silicon dioxide, a compound that does not conduct electricity and heat. No carbon is released as a result of the combustion reaction!
As a result of oxidation at temperatures above 180 ° C, methyl radicals gradually detach, and at temperatures above 250 ° C is a slow transformation of the polymer into a monomer - a process of depolymerization. During the two days of exposure to these temperatures, the loss in weight of the coating is less than 3%, so in these conditions, the silicone coating can effectively operate for two months! Short-term exposure to higher temperatures - up to 300 ° C is allowed.
Silicone coatings, in addition to their resistance to many environmental factors, are highly resistant to ozone.
Like all known polymers, silicone paints are subject to weather aging, but the rate of aging is very slow. Silicone elastomers swell in chlorinated and aromatic solvents, but once the solvent has evaporated, they return to their former shape and the material does not age.
Silicone coatings prevent adhesion of various marine bioorganisms due to their smooth, even matte surface.
Silicones can be used as a component in a coating system or as the main binder. Silicone resins are used in the manufacture of primers, paints, heat and biocide coatings, additives, automotive and industrial coatings, etc.