Meeting the Challenges of Heat Sensitive Substrates
Over the last twenty years, powder coating has revolutionized
Powder coating is now used on a variety of products that were
One of the biggest breakthroughs for powder in the heat sensitive substrate market is on medium density fiberboard, or MDF, a combination panel bonding particles of wood with a synthetic resin. MDF is very suitable for powder coating application because of its low porosity and homogeneous surface.
MDF products include office furniture, kitchen and bath cabinets, doors, store fixtures and displays, barbecue trays and ready-to-assemble
Powder coating is revolutionizing the MDF market because it offers design freedoms other finishing methods and laminating processes just can’t provide.
How to Powder Coat on Wood and MDF Products
Wood parts that require sanding can be cleaned with compressed air to remove any surface contaminants.
To enhance electrostatic attraction, wood can be pretreated with a spray solution that provides a conductive surface.
The part is then preheated to a desired coating temperature, which softens or partially melts the powder when it is applied and helps the powder adhere to the part where it melts a little on impact.
A uniform board surface temperature allows for high transfer efficiency and a consistent appearance.
Powder materials for MDF can be either thermal cure products or UV-cured powders.
Thermal cure powders rely on infrared ovens, convection ovens or
See also: Powder Coating Wood Furniture-PPRC
See also: Powders for Wood Powder Coating-Nordson
See also: Powder coating on Wood, Plastics and Glass-Powdercoatingonline.com
Interesting article: Powder Coating on Wood Trends -Product Finishing/Trio Industries
Coater's Manual 1/98
April 8, 2007