Quote: Ho will your products work on the Schuberth visors with the coating they have on the inside and the outside? They recomed only water to clean their visors.
I always recommend that you follow the manufacturer's instructions. The anti-fog coating on the inside is soft and sensitive to chemicals. I have tried Fogtech over many anti-fogs coatings on safety glasses, paintball masks and an older Schuberth. Fogtech did not seem to impact the anti-fog layer. As a matter of fact, it made the anti-fog effect even better.
That being said, I would wait until the manufacturer applied coating stops works or show signs of fogging. Then apply Fogtech.
I have not tried Raincoat over the anti-fog coatings and I would not suggest you try that. Raincoat is usually used on the outside of the shield.