Substrates Suitable for UV Powder Coating

Although UV powder coatings can be applied to a variety of substrates, including metals and plastics with high melting temperatures, their primary advantage is for coating of substrates, which ared [Pg.168]

Plastics Several types of plastics, such as polystyrene, high density polyethylene (HDPE), acrylonitrile butadiene styrene (ABS), resin/ [Pg.168]

Wood and wood composites Solid wood as well as particleboard and medium-density fiberboard (MDF) are suitable substrates for powder coating. They tend to emit volatiles such as entrapped air and moisture, and therefore require curing temperatures below 100°C (212°F) and preferably nof higher than 80°C (144°F). A typical curing procedure for MDF is in Table 7.8. [Pg.169]

Preassembled parts Preassembled parts may contain components made from heat-sensitive substrates (e.g., plastic inserts, wiring). In contrast to the conventional method, where individual components are coated prior to assembly to avoid heat damage, UV powder coating permits the manufacturer to fully assemble a part prior to coating. [Pg.169]

Large-mass parts Conventional coating of large-mass parts requires exceedingly long times in convection ovens. A considerable reduction of times required for cure is to melt the powder with IR and use fast UV-initiated free radical curing reactions. [Pg.169]

Big Chemical Encyclopedia