Light and medium colored shirts. Hot-split and cold-peel transfers. 100% Cotton fabrics only Stencils: Use any direct emulsion or capillary film compatible with plastisol inks. Additives: If reducing the inks viscosity is necessary, add 3-5% Viscosity Reducer (PLRE-9000) by weight. Do not use any additives when using Ultrasoft for plastisol transfer production. Curing Direct Prints: Ultrasoft inks will fully cure when the entire thickness of the ink deposit reaches 300° F (149° C).