Electrostatic Powder Coating and Wood Surfaces

First, render the wood electrically conductive.................................................

Hello kvsubramanyam:

Very interesting process! Good luck. Keep in touch OK?

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  Powder coating how it works 31 Jan 2009 ... Find a Electrostatic Powder Coating manufacturer or Electrostatic Powder Coating .... Ecological benefits of powder coating., Article from Wood Based. ... Surface Finishing Academy - 2009 Powder Coating Course Tour. www.gifimiknow.com/powder-coating-how-it-works.php

Good luck and take care......................

Thankful to every one. I am aware of powder coating for several years. The recent development is powder coating on wood surface. For this MDF wood is used and under controlled moisture content, the wood is made conductive and coating process is done. I want to know from CR4 friends, what is all process parameters, suppliers of raw material and plant and machinery. Thanking every one once again!

Hello kvsubramanyam:

Thank you for your reply post.

I was not sure if you wanted to know about the 'hardware as well?

Here are some things which my help................

http://www.powdercoating.org/publications/

The one below is a search I did for powder coating machines.

http://www.google.com/search?hl=en&q=Electrostatic+Powder+Coating+machines&btnG=Search

The previous links I sent and the link above on 'powder coating inc' has links to the powders supplier and some machines and books. And the list below has all kinds of machines all over the world!

It is up to you where you start to learn and what you want to do with that knowledge right?

Are you going to set a business up?

Take care and please keep in touch......................

(c)an any one explain various steps involved in Electrostatic Powder Coating on Wood surface? No

Details not forthcoming due to impossibility of object.

In my experience with powder coating, the object being coated must be a material that can accept an electro-magnetic charge - wood does not.

Also, after the powder is applied, the object is heated in an oven to 400 deg. F to melt and fuse the powder to the surface. At that temperature, the wood would likely split and warp severely at the very least, it might even char or burn.

I suggest your best bet is a traditional sprayed paint application with a HVLP (high velocity low pressure) system in a paint booth that filters the air to prevent dust and remove paint vapors.

You've hit on a revolutionary method to produce light, wood textured, hollow objects by spraying it, the wood, with conductive paint and then powder coating it. The curing process "would" burn the "wood" out and you'd have a work of art, worth bazillions.

We are professional supply powder coating and relevant surface treatment equipment. if you interest in our business offer, you can find more information us via www.fungyu.com.hk, or you can contact me via porypang@fungyu.com.hk.

I will be open discuss with you for your requirement.

Kindly regards

Pory Pang

Your web site produced this:

" Electrostatic powder coating is to use the coating machine which possesses atomization nozzle (atomize coating) and discharge electrode(produce electric current) to let coating atomization and bring to bear charge to mote so as to make use of the electrostatic sorption that comes from the electric field between electrode and something coated to coat."

And how do you coat wood?

Hello LL,

How are you? It is pretty cold here with a whole lot of snow.

Thought I would send a note on powder coating solid or ply. I think the curing process would have to be either chemically different or the heat applied at a much lower temperature over a longer period?

I have seen several inventions which mention how to powder coat wood. Cant recall any now and my computer is just about holding on enough to send this, I hope!

Take care and I will try to send some of those invention descriptions.

Hi bb,

It was 83 here in Az.USA yesterday.

Yes, maybe I was too hard on the guy. I'm sure there are ways to achieve the goal, but at what cost?

Maybe a liquid, instead of the powder, which requires heat to cure.

They once painted our office furniture, in place, using electrostatic, liquid paint.

Without knowing more about the application, end result desired, I can't help.

Stay warm!

LL

Hello LL,

Hope you are nice and WARM!!!!!

Appreciate the reply post LL, thank you.

If this chap wanted to go into business, I would have thought he would have at least have been checking the 'opposition' out, and in doing so see what happens. Or, if he is serious, visit one of the companies who make the gear? I am not being rude to him in any way, but that is what I would have done. Go to the place they build these things and they can give you an example, you know?........... Maybe a college course might be of use in this situation where the OP seems to not know enough to operate the equipment ?

I am going back to my igloo now, see ya! Brrrrr............... "Now, where's that lump of coal"........

Take care.................

Hello every one. I am 50y/o Maintenance head of a battery mfg company. People of various walks of life normally contact me for various technical help. One business man put this question to me; and I turned-up to CR4.

Hello kvsubramanyam:

I just want to say, I hope I did not offend you in any way. Perhaps you should ask your friend if he wants to join? We are a kind lot..........sometimes!

Take care.................

See rule 7 and rule 9.

You have two problems:

The charge issue is easily overcome by gilding with imitation gold leaf.

The heat issue is most likely a show stopper. At the temps that the coating will flow from powder to a single coating will cause the wood to out gas and char.

Brad

Hello UV,

Just a query...........There is quite a lot of Patents Pending on this and similar powder coating techniques. It may be possible to cure a different mix of powder, and or 'bake' it longer on say 150°C, rather than the more usual 280°C or higher? I am still looking as I am interested in this.

Take care...............................

Thanks. I have not felt offended. In one article I read that powder coated wood can be cured at 200'F (93'C). Since it is static electricity it should be possible to make the wood conductive by moisturising. In magnetron sputtering Ni Cr is coated on ceramic substrate which is very high insulator (manufacturing metal film resistors). Thin polythene is coated with Aluminium or gold that is used in food packing. Hence I see a possibility that wood can be coated even without moisturising.

Hello babybear,

My suggestion then is a low heat activated or catalyst chemical reaction compound that has no or little out gassing. I find the subject of interest myself. To use wood as a core for something as strong as powder coating has possibilities.

Brad

Hello UV,

Just to thank you for your kind reply and so quickly as well.

The references for this subject would take a long time to go through and, I am sure a lot of jobs will be out there as "Patent Pending"! There is too much competition for this not to happen.

Take care my friend...........................

I'm the author of powdercoating beginners, and just found this in my traffic results and figured I'd chime in. I don't do MDF powdercoating myself, however I have seen the process and looked into it.

First and foremost, everybody is correct in the polarization of the powder in order to get it adhered. This is done by a variety of means, most often, zinc primers are used from what I have seen.

The curing concerns are addressed by speciailized powders for MDF applications. Conventional powdercoat depending upon it's base has a normal flowout of 375-400 degrees, however there are 'low temp' powders on the market which begin flow at roughly 165 degrees with a full cure temp of 200.

Any other questions on it I can try and help, even though I'm not an expert on MDF powder coating. I hope my site at least gave you guys some useful information :)

It is not powder coating but you might want to check out these guys.

Spectra Chrome The stuff is fairly tough and works on anything you can spray paint. Even things like vinyl seats.