The substrate should have a rough surface(through sanding) or be treated with a primer before application. It’s necessary to sand or sandblast before application. Ideally, polysiloxane coating is applied over an epoxy primer system, as the adhesion will be much better.

Generally, it can achieve over 95% solid content. With a film thickness of 80-100 microns, the spreading rate is 0.16 kg/㎡, equivalent to 6 ㎡/kg.

Generally, blending epoxy with polysiloxane is aimed at enhancing weatherability, as epoxy itself offers excellent corrosion resistance. The combination leverages epoxy's strong adhesion, dense film formation, and superior corrosion resistance alongside polysiloxane's outstanding weatherability, thereby improving the overall performance of the coating.

Yes, there is a notable difference. Amino polysiloxane is a polymeric compound typically used as a curing agent or resin modifier in coatings, enhancing properties like weather resistance and mechanical strength. In contrast, amino silane 550 (likely a specific model like Silane Coupling Agent KH-550) is a small molecular silane coupling agent, primarily employed as an adhesion promoter or surface modifier. While both contain amino groups, they differ significantly in molecular structure, application scope, and functional mechanisms.

Polysiloxane resins are relatively sensitive to alkalinity. Avoid using strongly alkaline additives, while weakly alkaline additives are acceptable.

By combining the respective advantages of siloxane and acrylic, it helps increase the comprehensive performance of the coating, giving the coating long-lasting and durable weatherability, corrosion resistance, as well as gloss and color retention.