wood and mdf frames ready for powder coating

Powder Coating Wood & MDF

Wood and wood composites are both excellent substrates for the UV-cured powder coating process. UV-curable powder coating uses significantly less heat and has a very fast processing time. This is beneficial because the longer wood is exposed to heat the more it degrades, causing defects such as cracking, outgassing, pin holing, grain raise, and fiber popping.

UV-curable powder coating can be a one or two coat process depending upon the finish requirements of the customer. Even a two coat UV-cured powder coating process is faster than alternative finishing processes.

Applications for powder coating wood and wood composites include: retail and POP fixtures components, shelving, commercial and residential furniture, and healthcare components to name a few.

Visit DVUV’s website to learn more about what a successful UV-cured powder coating line for MDF (Medium Density Fiberboard) looks like.

You can also fill out our Finish Requirements Form if you have an existing project you feel UV powder could be a fit for.


Technical Data

UV-Cured MDF Powder Coating

Application Data

Application Powder is typically sprayed using corona electrostatic spray guns. Preheating of MDF should be kept to a minimum to reach recommended surface temperature of 60-70°C (140-158°F), typically 1-2 minutes.
Melt Melt times will range from 1-3 minutes depending on MDF thickness, part size, oven set temperatures and type of oven.
UV Cure It is recommended that opaque powder coatings be cured using gallium-doped lamps with a UV-V dosage of 2000-4000 mJ/cm2 and UV-V intensity of 1000-2000 mW/cm2. A coating temperature of 100-130°C (212-266°F) is recommended at the time of cure.
UV LED Cure Unpigmented and pigmented powder coatings will cure using a UV LED lamp under the correct parameters. Contact Keyland Polymer for product and process information.
Storage and Shelf Life Dry and cool conditions below 18°C (65°F) for 6 months are recommended for storage stability. Contact Keyland Polymer to confirm the appropriate storage conditions for your product.


Technical Properties

60° Gloss ASTM D 523 3 – 90
Film Build ASTM D 4138, Method A
Destructive, Tooke Gauge
3 – 5 mils
Adhesion ASTM D 3359, Method A- (X-Scribe) 4A Minimum
Pencil Hardness ASTM D 3363 H – 4H
Impact NEMA LD 3-2005, Test Method 3.8 35-60+ in. minimum, no cracking
Abrasion Resistance ASTM D 4060, CS-17 Wheel, 500g, 1000 cycles 10 – 35 mg material loss
Boiling Water Resistance NEMA LD 3-2005, Test Method 3.5 No blistering


Stain Resistance and Cleanability Testing

10% citric acid NEMA LD 3-2005, 3.4 No effect
Vegetable oil NEMA LD 3-2005, 3.4 No effect
Coffee NEMA LD 3-2005, 3.4 No effect
Tea NEMA LD 3-2005, 3.4 No effect
Milk NEMA LD 3-2005, 3.4 No effect
Catsup NEMA LD 3-2005, 3.4 No effect
Mustard NEMA LD 3-2005, 3.4 No effect
10% Providone iodine NEMA LD 3-2005, 3.4 No effect
Ammonia NEMA LD 3-2005, 3.4 No effect
Crayon NEMA LD 3-2005, 3.4 Very slight effect
Ethanol/water NEMA LD 3-2005, 3.4 No effect
Lipstick NEMA LD 3-2005, 3.4 No effect
#2 pencil lead NEMA LD 3-2005, 3.4 Slight effect
Shoe polish NEMA LD 3-2005, 3.4 Slight effect


Available Colors and Products

Keyland Polymer can develop a custom powder to match both RAL and Pantone standards as well as customer supplied samples; including metallic and speckle finishes.

Our in-house coating, formulation and testing laboratory allows us to develop and validate coatings for your specific product application and performance requirements.

Disclaimer: The information listed is correct to the best of our knowledge and test results. The recommendations and suggestions herein are made without guarantee or representation of results. We recommend adequate testing in your laboratory or plant to determine if this product meets all of your finish requirements.