Self-Emulsifying Waterborne Polyester Resin For Baking Metal Coatings Product Overview WL-190 is a self-emulsifying waterborne polyester resin designed for baking metal coatings. Before use, it should be neutralized with DMAE (5-6% of resin amount). Suitable for grinding processes with temperature control below 50°C, and can be formulated with Cymel 303LF or Cymel 327 to create amino baking coatings. Physical Properties Properties Units Values Appearance --- Light yellow