The composite exterior wall coating made of silica sol as the main film-forming material, styrene acrylic emulsion, vinyl acetate resin emulsion and other synthetic emulsions as auxiliary film-forming materials, and pigments, fillers and additives has unique water resistance, fire resistance, scrub resistance, pollution resistance, aging resistance and other properties. In recent years, it has become a leader in architectural coatings. The casting coating mixed with silica sol and refractory powder can better prevent molten steel from melting and plate wear when casting steel ingots. Silica sol can also be used in the production of a variety of anti-corrosion coatings. Huihe Yongsheng large-particle silica sol SD-3030 is produced by ion exchange method; the product appearance is milky white.

Silica sol is widely used as exterior wall architectural coatings. It has the advantages of water resistance, weather resistance, fire resistance, stain resistance, high temperature resistance, high coating hardness, bright color, and no fading. It can also be used for acid-resistant, alkali-resistant, fire-resistant, water-repellent coatings and infrared radiation coatings.

Physical parameters:

Silica sol concentration：29-31

Proportion：1.1.93-1.208

Na₂O%:≤0.5

PH（25℃）：9.0-10.5

Viscosity：≤6.5

Average particle size：70-90

Stable period：12m

Product advantages:

1. Excellent adhesion, durability and film-forming properties

2. Evenly distributed silica sol colloidal particles can reduce settlement and separation in the paint and improve the stability of the paint.

3. Customized modified silica sol to improve the adaptability of traditional coatings and reduce or even eliminate VOCS emissions

Silica sol particles are fine, and the silica oxide during gel separation has high activity and can form new silicate inorganic polymer compounds with certain inorganic salts and metal oxides to form a very hard film; small particles can pass through capillaries It penetrates into the interior of the base material and reacts with the alkaline substance Ca(OH)2 in the base material to form calcium silicate, giving the coating film strong adhesion. The enhancement of adhesion is the comprehensive effect of silica sol penetration and hardening bonding, and the comprehensive result of mechanical bite and chemical bonding.

Therefore, it has better surface adhesion than ordinary paints. Silica sol is miscible with organic polymers, so that organic polymers are evenly distributed in the gaps of the silicon-oxygen-silicon inorganic coating, shielding the remaining hydrophilic groups in the inorganic coating, and buffering the shrinkage of the coating And make the coating have a certain elasticity. The formed coating has the characteristics of both inorganic coatings and organic coatings, making up for the shortcomings of both. After the silica sol film is formed, the silica body is formed into a network structure, which is not afraid of acid and alkali and improves the performance of the coating film. Composite wall paint formulated with silica sol as the main film-forming substance, synthetic emulsion as the auxiliary film-forming substance, plus pigments, fillers, and additives, has unique water resistance, fire resistance, wash resistance, and pollution resistance. The casting coating prepared by mixing silica sol and refractory powder can better prevent molten steel from melting and flat plate wear when casting steel ingots. In addition, silica sol is widely used in the preparation of metal surface thermal conductive coatings, water-resistant imitation porcelain coatings, wall bead steel coatings, energy-saving anti-corrosion high-temperature ceramic coatings, metal insulation coatings, foaming fire-retardant coatings, etc.

Things to note:

1. Packed in 25L\200L\1000L polyethylene plastic drum, transported and stored in 0~40℃ environment;

2. Avoid contact with eyes and skin when using. If inadvertent contact occurs, rinse with running water.

At present, this product has been stationed in the premium material library. If you need to request a sample, please click to request a sample: Huihe Yongsheng Large Particle Size Silica Sol SD-3030