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How to do powder coating with polyethylene with antistatic

2005

We are research about Polyethelene powder coating.
It needs to coat to the wire metal, with dipping and heating after that.

By the way,
We want to change the coating system from dipping to spray gun.
We used to try to spray gun with epoxy powder but the particle size is bigger than epoxy and there is no static so the powder does not stick with the wire metal when we used spray gun.

My question is
How can we put some static on the polyethelene powder?
How can we use this powder by spray gun?
Any instrument?

Thank you for your attention.

please kindly reply

Thanks again.

Aleke
Suntor - Bangkok, Thailand

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Dear Mr Suntor

Did you try with positively chargeable gun?. If not,try with that.

M.Ramaraj
Kroft Industrial Equipments - Coimbatore, India
2005

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You can use standard corona charging powder equipment to apply this, but the part has to be hot enough for the coating to melt to it when it's applied. Thermoplastics aren't designed to take a charge.

Sheldon Taylor
supply chain electronics
Wake Forest, North Carolina
2005

You can use the politene with a eletrostatica gun if the powder has one granulometria < 80 - 100 micron. You obtain one thickness of approximately 150 - 200 micron. With the politene you do not have adhesion to the metal, in the time is detached. You can pass to the fine PVC with granulometria < 100 micron, using before a primer, this resists to the outside much time. Or to pass to the thermoplastic Polyester with granulometria < 70 micron, is autoaderente and it is sprayed with the eletrostatica gun to cold, resists well to the outside. E' only one issue of costs.

Volontà Anselmo
- Varese, Italy
2005

Ed. note: Hello, Volonta. Thank you for visiting finishing.com. If your English is not good yet, no problem, and thanks for your effort in trying to learn our language! But your postings appear to be "machine translated". We don't want that; it forces hundreds of readers to each spend long minutes in service to the shortcomings of 2 microseconds of machine time :-)
Please try your English, however much or little you may have; but please don't type a paragraph of Italian into a machine translator and post the result.

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April 9, 2010

You could try Tribo Gun
In case of Corona Gun you must carefully adjust the charge voltage.
Generally polyethylene powder is not deigned for electro-spray
Better results can be achieved adding Aluminum Oxide as charging promoter.

Rodolfo Crucitti
- Varese, Italy