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. The painted specimen is heated to 650-700°C and held at this temperature for 15-30 min and then cooled to room temperature to pyrolyze the coating into a ceramic coating. The effectiveness of the resulting ceramic coating in protecting the graphite surface from thermal degradation can be demonstrated by heating the painted specimens to 850°C for 5-10 min and holding them at this temperature for 1 h. The average number of dents on the surface of the three painted specimens was only 8-86 dents per square inch, while the average number of dents per square inch of the unpainted graphite specimens was 8-86 dents per square inch. The average number of dents per square inch for the unpainted graphite specimens was 590 to 630.
2. Antirust Coating
The deep-drawn steel plate was impregnated with 20% concentration of fully hydrogenated polysilazane (number of average relative molecular mass of 150~150,000) solution for painting, deep-drawn in the air at a rate of 0.3 m/min, drying at room temperature for about 30 min, and then the painted steel plate was placed in the 700 ℃ air furnace for 10 h, the heating and cooling rate of 3 ℃ / min. The test results found that: the painted steel plate has no oxidized or rusted layer. The test results found that: the painted steel plate has no oxidized layer or corrosion.
3、Automobile Body and Wheel Hub Coating
The paint uses a number of average relative molecular mass of 150 ~ 150 000 of the fully hydrogenated polysilazane or organic polysilazane. The 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 coating thickness 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 polysilazanes used are organopolysilazanes and all-hydrosilazanes, with a relative molecular mass of 150~150,000, and the coatings prepared from them can be used for metal strips such as aluminum and zinc, and the coatings have good resistance to acidity, alkali, solvents, acid rain, bird staining, and weathering. For example, the thickness of 0.5 mm aluminum plate immersed in 20% concentration of fully hydrogenated polysilazane solution, and then withdrawn at a speed of 120 cm/min, then preheated to 250 ℃ in the forced air drying furnace, and held at this temperature for 60 s, 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 was found to be very resistant to scrubbing. 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 showed 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.