Chemical resistant coating for silicone keyboard

[Tangzhuo]

Hi,

I am looking for a suitable coating on Silicon keyboard, witch can provide excellent chemical resistance to Ketone and Alcohol. The coating must have excellent UV, stain and abrasion resistance as well.
I have tried PU coating, but the solvent resistance of this coating was really poor.

Does anyone know any coating can meet these requirements?

All comments welcome!

Regards

Tang