1、Ceramic coatings
Coatings are made by dispersing silicon carbide, silicon tetrazolium tetrazolium, or mixtures thereof, in a solution consisting of polysilazane and an aromatic solvent. This coating provides a protective ceramic coating for carbon/carbon composites, graphite and other carbon-containing materials. For example, a graphite specimen with dimensions of 3.8 cm x 2.5 cm x 0.5 cm was polished to a smooth surface, cleaned, vacuum dried, and fully brushed with this coating, allowed to air dry, dried at 100°C for 5 min, heated at a rate of about 10°C /min to 150°C, and held at 150°C for 15 to 30 min before being allowed to cool to room temperature. Then another coat of this paint was brushed on this specimen, heated to about 175~186°C, held at this temperature for at least 15 min, and cooled to a coating thickness of about 0.08~0.10 mm. This painted specimen was heated to 650~700°C and held at this temperature for 15~30 min before being allowed to cool to room temperature to allow for the pyrolysis of this coating into a ceramic coating.
2. Anti-corrosion coating
The deep-drawn steel plate is impregnated in 20% concentration of all-hydrogen poly-silazane (number of average relative molecular mass of 150 ~ 150 000) solution for painting, deep-drawn in the air at a rate of 0.3m/min, drying at room temperature for about 30min, and then the painted steel plate is placed in the 700 ℃ air furnace insulation for 10h, and the rate of its heating and cooling for 3 ℃ / min. test results found that: the The test results found that: the painted steel plate has no oxidized layer or corrosion.
3、Automobile Body and Wheel Hub Coating
The paint using a number of average relative molecular mass of 150 ~ 150000 of the fully hydrogenated polysilazane or organic polysilazane. Coating formula is 35% ~ 40% polysilazane, 0.5% ~ 1% polyacrylate and less than 2.0% flow control additives, solvent using butyl acetate. It is sprayed on the aluminum part by spray gun, and its top coat is acrylic powder coating or solvent-based or water-based varnish. The aluminum part was baked at 170°C for 20 min. the thickness of the coating was 5 μm, and the surface roughness was 0.09 μm.
Brake Dust Test: Brake dust was suspended in water and then applied to a sample plate, which was stored at 160°C for 2 h, then rinsed with water, gently wiped, and then evaluated, with an evaluation value of 1. The coating was then applied to a sample plate, which was stored at 160°C for 2 h, then rinsed with water, gently wiped, and then evaluated. It can be seen that the coating can prevent brake powder from "staining", has good scratch resistance and corrosion resistance, and its water contact angle is 108°.
4. Coating for metal strips
The poly-silazane used is organo-polysilazane and all-hydro-silazane, with a relative molecular mass of 150~150,000, and the coatings prepared by it can be used for metal strips such as aluminum and zinc, and the coatings are acid-resistant, alkaline-resistant, solvent-resistant, acid-rain-resistant, bird-stain-resistant, and weather-resistant. For example, the thickness of 0.5mm aluminum plate immersed in 20% concentration of all-hydrogen poly-silazane solution, and then withdrawn at a speed of 120cm/min, followed by forced air drying furnace preheating to 250 ℃, and held at this temperature for 60s, after cooling, the formation of a clear, transparent and non-cracking coating. The coating was first tested for scratch resistance, i.e., the coating was wiped back and forth 5 times with a force of 3 N using a 00-grade steel wool, and the coating had good resistance to wiping. The coating was also subjected to the condensation alternating atmosphere test according to ISO 6270.4-2005. After 25 cycles of exposure test, the coating had no white rust and its adhesion (DIN EN ISO 2409-2013) was class 0.

Room termperature curing polysilazane, pls check IOTA 9150, IOTA 9150A. 
High termperature curing polysilazane, pls check IOTA 9108, IOTA 9118.