Example: Low oxygen transmission rate coating

A polyester film sheet with a thickness of 23 μm was immersed and drawn in a 5% perhydropolysilazane solution (solvent xylene or di-n-butyl ester) with a deflection roller at a speed of 3 m/min. In this process, only the front of the film is in contact with the perhydropolysilazane solution, and the back is covered by a deflection roller. Then the film coated with the film is passed through an infrared drying tunnel with a length of 60 cm, passing approximately After 12 s, the film is heated to 60°C, and the resulting coating is clear and transparent. The oxygen permeability test was carried out under 0% relative atmospheric humidity, and the results showed that the oxygen permeability value of the coated membrane was 14 mL/(dm2·bar), while the oxygen permeability value of the unpainted membrane was 85 mL /(Dm2·bar).

Example: Anti-fouling paint

Mix 0.5%~10% polysilazane in aromatic hydrocarbon (white spirit solvent, or paraffin type solvent, or alicyclic solvent) solution and 4,4'-trimethylene-bis(1-methylpiperidine) catalyst (amount (Less than 0.2%)) is applied to the car body, wheel hub, denture, stele and the inner and outer walls of the house to form a dense and hard coating film, which has a long-lasting, hydrophilic and antifouling effect. The coating can also be used in toilets, kitchens, washing rooms, bathtubs, etc., as well as signs, plastic products, and glass products to achieve stain resistance.

Example: Anti-Graffiti Paint

Polysilazane coatings have high crosslinking density and low surface energy (105 mN/m), extremely high hardness, good scratch resistance, chemical resistance and corrosion resistance, and can be used in high temperature environments above 600°C. Therefore, the coating is particularly resistant to the penetration of ink and color, prevents scribbling, and is extremely easy to clean. It can be used on buildings and public transportation vehicles. It is currently used in the European railway transportation system.