Plastic Coating
Plastic coating is a thermal process in which metals are heated before and
after being dipped. A primer applied before dipping helps the plastic stick
to the part. Applied during the dipping process, the plastic coating is usually
.250 inches or thicker. However, the exact thickness of the coating is determined
by process time, temperature and the thickness of the substrate. Dip speeds,
controlled ovens and dip times are used during the plastic coating process
to control the required dimensions for parts.
Plastic coating is corrosion resistant, can cover many sized parts and is
found in multiple colors and textures. It is used for medical equipment, fitness
equipment, tool handles, wire forms, electrical connectors, cushion covers,
corrosive areas, handles and many more items.
Two types of plastic dip coating include cold dip coating and hot dip coating. Cold dip coating is used mostly for thin coatings of plastisol. In this process, the object is dipped in plastisol without preheating, and then placed in a heated chamber. Hot dip coating is the process in which an object is heated, dipped in plastisol and then placed in a heated chamber where fusion takes place.