Tp-500a ternary chloroacetate resin is a thermoplastic resin containing hydroxyl, so it has superior adhesion to metal, especially to metal aluminum, and to PVC products, paper, fiber, glass, brick cement, wood, etc. Tp-500a is easily soluble in ester solvent, and it is very easy to be used in ketone, benzene and other solvents. Excellent pigment dispersion, excellent color adhesion, excellent resin compatibility.