/cgl/ - Cosplay & EGL

>tl;dr: This mask is made of hard resin and colored with automotive paint - can I wear it in the rain or will the color fade?

Doing Dallas from the Payday franchise this year. When I questioned the retailer, he said it a baked automotive paint. I know very little about painting, coating, etc. I decided to run water on my fingers and rub two portions of the mask.

The white portion I rubbed became brighter, the red portion didn't seem to change at all.
I'm thinking that the "dirt" on the white might of been applied after the auto paint, which is why it seemed to run off.

Do you think it needs protective coating? Should I be concerned with wearing it outside, in risk of rain?