Brush cleaning of the Future (Future brush cleaning)

I use future to prepare my model for decals. When I brush it on, I usually use rubbing alchohol, but it never seems to clean it good enough. I often have to clean my brush two or three times. Can I use ordinary paint thinner? I assume it would just cut through it, but I'm worried about a reaction or something that might mess up my brushes. Have you guys tried this? Thanks