Hi guys. So the other day I decided to paint the starter box for my cold cathodes. Any way, I sanded it down which made it smell like strong plastic then I primed it using acrylic primer and it came up with tiny bubbles/refused to coat in areas. It doesn't matter because it's only a starter and it'll be hidden but yeah, what's the best primer to use on acrylic sheet? I plan to make and paint a lot of cover panels soon so I really need to know what won't react and will seal the surface allowing me to use cellulose paint.