WATERBORNE PAINTS REQUIRE SPECIAL CONSIDERATION WHEN USED IN AUTOMOTIVE PAINT FINISHING SYSTEMS. EXISTING SYSTEM SPRAYING HIGH SOLIDS SOLVENT BASED PAINTS CANNOT BE CONVERTED TO WATERBORNE WITHOUT A SUBSTANTIAL AMOUNT OF MODIFICATIONS TO THE PROCESS EQUIPMENT INCLUDING SPRAYBOOTHS, PAINT APPLICATORS, AND SLUDGE SYSTEMS. THIS PAPER DESCRIBES THE SCOPE OF THE MODIFICATIONS TO EXISTING PAINT SYSTEMS.