MDF Powder Coating Systems

 

Is it possible to powder coat wood? How is the experience?

Many office furniture makers are moving away from standard shapes such as squares and rectangles to more rounded corners and contoured edges. 
With interior circles and ellipses to allow for computer cords to drop through. They are also offering seamless desktop coatings and a variety of colors and effects.
Powder coating can accommodate these shapes, while other lamination techniques that rely on edge-banding methods cannot. 
And, powder application is a one-step finishing process, not requiring successive coats or long drying times.
mdf powder coating line
Wood powder coating line

 

In addition, powder coating can save many sanding procedures between coats, resulting in operational efficiency and cost savings over liquid coating.

Until reason years it was commonly viewed that powder coating of MDF boards was not feasible for mass production.

But this is now a perception of the past as dramatic improvements of the low cure technology combined with state-of-the-art application techniques are making MDF powder coating today a reality. accessible to the entire furniture industry.

Powder coating on MDF is now seen as an preferred choice over other alternatives such as laminate veneers  and liquid paint. 

 

 

 

Wood panels powder coating line manufacturer

3D scanner at the booth entrance

Spray guns adapt to the shape

MDF powder coating made perfect by experience

 

 

Powder coating for MDF panels

We also supply the special powder coating, ask us !

 

Benefits of MDF powder coating

  • Improved humidity resistance
  • Complete freedom of design
  • Ease of application
  • Low cost
  • Time saving ! One-step finishing process
  • Just few employees do the job easily
  • Automated process
  • Additionally it is environmentally friendly

 

All of these advantages combined to make powder coating is the ideal coating solution for MDF lets understand how powder coatings apply on MDF

Powder coating application takes place the MDF board has now been giving is final shape through cutting, routing or drilling.

The boards may need proper sanding and cleaning plus a final check of the boards moisture content is recommended to secure a consistent application over time

The MDF board are then hung on the conveyor line vertically with proper distance maintains between the boards

Longer or wider boards are usually hung horizontally to ensure equal coating coverage across the surface

 

Once the boards are properly hung they move along the conveyor system through different stages which include 

  • board preheating 
  • powder coating application 
  • and powder curing 
     


Let’s take a closer look at each of the stages

The boards first pass through the preheating oven where are they are subject to approximately 60 seconds of surface heating with temperatures of up to 70°C depending on thickness and size of the boards

Preheating is a key step in the process the temperature brings out the moisture to the surface of the board which makes the MDF board conductive enough to ensure the powder will stick to the board

After the preheating the boards then passes through an application booth where the powder was applied on the MDF board

 

These are non-conductive booths with corona guns and panels on either sides which insure an even application of powder coating on the board surface and edges.

Once the powder is applied, the board passes through the curing oven. 
Thanks to the low curing properties of the powder coating the integrity and properties of MDF board are not effected.

The powder is now cured. 
The boards then usually pass through a cooling zone 
All will be left on conveyor lines on cool down after which they can be offloaded from the conveyor and pass the queue see  control lab.

The board now looks great 
In case you want to give you a furniture superior appearance or performance you may consider using powder in combination with powder or wet systems as primer or topcoat