Advantages of SiO2 nanoparticle in varnish:

Disperse nano-silica into polyurethane varnish to prepare nano-silica composite coating. Corrosion test by weight loss method, anodic polarization curve and AC impedance test results show that after adding nano silicon dioxide powder, the corrosion resistance of polyurethane varnish is improved. At the same time, the adhesion of the modified polyurethane varnish film is increased, and the anti-aging performance is improved.

Silica nanopowder in varnish, it improve the paint's many properties such as washing resistance, stability, and corrosion resistance, and can give it special functions such as antibacterial and self-cleaning. It can improve the storage stability, water resistance and sun resistance of the coating, improve the thixotropy of the coating, and effectively control the splashing and sagging in the construction. The mechanical properties, tensile strength, hardness, and flexibility of the coating film are improved, the coating film is more delicate and smooth, has a better finish, and the decorative performance is improved. Hard and wear-resistant, strong adhesion, and has the properties of temperature resistance, moisture resistance, and chemical corrosion resistance.