塑料用水性涂料的需求是由改善汽车面漆和减少VOC的需求驱动的。水性底涂层整体上更光滑，允许更好的金属色铝取向，这使得装配厂能够生产具有更高光泽和DOI的汽车。与溶剂型底涂层相比，水性底涂层每加仑的VOC更低；然而，较低的油漆固体和静电应用障碍抵消了VOC的一些优势。

THE DEMAND FOR WATERBORNE COATINGS FOR PLASTICS IS BEING DRIVEN BY THE NEED TO IMPROVE THE AUTOMOTIVE FINISHES AND TO REDUCE VOC. WATERBORNE BASECOATS ARE SMOOTHER OVERALL AND ALLOW BETTER ALUMINUM ORIENTATION IN METALLIC COLORS WHICH ALLOWS ASSEMBLY PLANTS TO PRODUCE CARS WITH HIGHER GLOSS AND DOI. WATERBORNE BASECOATS HAVE A LOWER VOC PER GALLON THAN SOLVENT BORNE BASECOATS; HOWEVER, LOWER PAINT SOLIDS AND ELECTROSTATIC APPLICATION OBSTACLES OFFSET SOME OF THE VOC ADVANTAGE.