Plastic Powder Coating

[Talulah]

I have bought some black plastic powder coating to recoat some metal items off the boat. It doesn't come with instructions. Anyone know how to use this stuff? Thanks.

 

[jh001ace]

We used plastic powder coating at a place where I worked. All of the steel items were put in a large oven and heated to about 175c I think, they are then dipped into a tank of the aerated powder for about 15s and removed, the plastic then sticks to the metal and is allowed to cool. I guess you will have to heat your peice and somehow cover it in the powder, could be tricky. We bought the powder from a company called Micropol, if you do a search on google you may find some tech info. Hope this is of some use.

 

[Ecartar]

Micropol Ltd
Stamford Mill
Bayley Street
Stalybridge
SK15 1QQ(Road Map)
Cheshire
Tel: 0161 330 5570
Fax: 0161 343 7657
Internet: www.micropol.co.uk

Managing Director - David Openshaw

Hope this helps? Sorry, no personal knowledge

Regards,

 

[Spuddy]

If it's the polythene type stuff or other thermoplastic then you need to use an airator. Stick the hot metal in a box of it and it will just form nasty lumps; the aeration allows it to form an even coat. The temperature is important but fairly tolerant - I'd guess 200 C . Do it with a blowtorch for small items. If it goes wrong burn off the failure but don't breath the fumes.
I built an aerator 20 years ago, involves a pump and a porous membrane - could try some cloth trapped between two layers of mesh or chicken wire. Not worth it for a few items so maybe try yor technology dept at the comprehensive- offer them the powder left over and maybe some other incentive.
regards spuddy

 

[ianabc]

Painting with no overspray = eletrostatic powder coating then hot oven to set epoxy "paint"

 

[Lakesailor]

Just look for businesses under "Powder Coatings" or similar in Yellow pages. Take your bits there and plead poverty. You'll probably get a good deal and have the parts done properly, without all the hassle. I've done it several times very successfully.

 

[VicMallows]

Are we really talking here about powder coated steel/alluminium? ... I had always assumed these were 'baked' on but I maybe completely wrong. Welcome comments from experts.

Vic

 

[richardandtracy]

I've not used it at home, and the experiences I've had with the stuff at work have been particularly unhappy. The material got deposited on too thin to begin with, cracked at the edges of the metal. Then after a re-coat it ended up too thick & peeled off. My recommendation would be to leave it in the tin and get something else!

Regards

Richard.