PERM-170 Perma-White was specifically formulated to combat the ever-present bleed problem experienced by those who print on polyester and polyester blended materials. Perma-White exhibits a unique blend of printability, opacity and bleed resistance. The cured finish is a smooth, matte surface. Perma-White has excellent mat characteristics. Perma-White contains bleaching agents to neutralize dye migration. Cures at 320.