5、Used as permanent anti-fingerprint coating
The polysilazane used is a fully hydrogenated polysilazane with an average relative molecular mass of 150-150,000, which can also be used on chrome-plated plastic substrates, with a coating adhesion (DIN EN ISO 2409-2013) of class 0. Fingerprint resistance is assessed by replicating fingerprints on the painted substrate and then visually evaluating the ability to remove the fingerprints after a vigorous rubbing with a cotton cloth. Fingerprint resistance is assessed by visually removing the fingerprints after the fingerprints are reproduced on the coated substrate and rubbed with a cotton cloth. The results showed that fingerprints on the coated substrate could be easily and completely removed, while fingerprints on the same uncoated substrate could not be completely removed no matter how hard they were wiped. The long-lasting test against fingerprints also showed that the coating could obtain satisfactory results.
6. Hydrophilic coating
Using an impregnation device with a stepping motor speed of 20 cm/min, a polycarbonate plate (10 cm×10 cm) was immersed in a n-dibutyl ether solution of 20% fully hydrogenated polysilazane for 10 s. After 10 s, the plate was withdrawn from the solution at a speed of 20 cm/min, allowed to drip briefly, and then was exposed to air for 10 min, and then immersed in aqueous BAKER's LPN-6640 Then it was immersed in the aqueous solution of LPN-6640 additive (10% concentration) of BYK (the original solution was 40% concentration, diluted with water according to 3:1), and then washed with water after 24 h in this aqueous solution, and the contact angle between the coating and water was measured to be 10° or less; the hydrophilic coatings used for stainless steel can be made by the same method, and the contact angle of the coating with water is also 10° or less.
7、Low oxygen permeability coating
A polyester film sheet with a thickness of 23 μm is impregnated with a deflection roller at a rate of 3 m/min in a 5% fully hydrogenated polysilazane solution (the solvent is xylene or dibutyl ester) for traction. In this process, only the front of the film is in contact with the perhydrosilazane solution, and the back of the film is covered by the deflector roller. The coated film is then passed through an infrared oven with a length of 60 cm for about 12 s, and then heated up to 60°C. The resulting coating is clear and transparent. An oxygen permeability test was carried out at 0% relative atmospheric humidity, and the results showed that the oxygen permeability value of the coated film was 14 mL/(dm2-bar), whereas the oxygen permeability value of the unpainted film was 85 mL/(dm2-bar).
8、Anti-staining coating
A coating consisting of a 0.5% to 10% polysilazane aromatic hydrocarbon (petroleum solvent oil, or paraffinic solvent, or alicyclic solvent) solution and a 4,4′-trimethylene-bis(1-methylpiperidinium) catalyst (in an amount of 0.2% or less) is coated on the body of an automobile, the wheel hubs, and the surfaces of denture teeth, monuments, and the interior and exterior walls of a house, to form a dense, hard coating film with long-lasting, hydrophilic, and antifouling effects. The coating can also be used in lavatories, kitchens, washrooms, bathtubs, etc., as well as on signage, plastic and glass products to provide a stain-resistant effect.

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