Mel Products MelPAX is a skin safe Adhesive-Waterbased Makeup. MelPAX is most commonly used for painting Foam Latex Prosthetics and also the most common used Makeup for a Tattoo Cover Up. MelPAX is the most durable and long lasting makeup available for Tattoo Cover. Once dry, MelPAX is Water Resistant, Sweat Proof, Smudge Proof and Smear Proof. Keep away from Eyes! Shake Well!