Rubber Mask Grease in a Mini Palette with 16 Colors. Rubber Mask Grease is a grease-based product with exceptional opacity and adherence. It is best used for coloring latex pieces like artificial noses, chin pieces, casualty simulations or rubber bald caps. To apply the product evenly a sponge is moistened in a little alcohol (e.g. Spirit Gum Remover and Thinner). This way Rubber Mask Grease allows a smooth, easy, and even thin application. Just like other grease-based make-up the Rubber Mask Grease should be fixed by using Translucent Powder.