Recently I attempted to use vellum tape on a transparent frame and it went horribly wrong. When I realized how bad it looked, I'd already put the tape in each corner of my beautiful frame. I ended up using a "Gunk 'n Goo Remover" towelette to rub the adhesive off. It worked like a charm and I was still able to use Krylon Easy Tack Spray on it later without reprecussions.