Removing Podercoating on a Fram

[Mark Austin]

Hi lads,

Does anyone have any experience in removing powdercoating from a frame?
The bike has been sitting in a shed not far from the sea for 10 years and rust had begun to form under the powdercoating, so it has to be removed and either repainted or re powdercoated.

Does anyone have any suggesions as to the best approach?

Cheers,
Mark

[Mark Austin]

That should be Powdercoating...

[LWC82PE]

sand blasting

[mx250]

Commercial bead blaster or wire wheel on the old angle grinder .

[LWC82PE]

i reckon you will stuggle with beadblasting. my sand blaster says that it takes more effort than paint just with sand blasting and thats a big industrial set up.

a good paint stripper will work, but pretty slowly. by the time a wire wheel gets even close to getting it all off you will have worn out a wheel or 2. ive tryed removing powder coating on shocks and the amount of pressure and effort you need from the wire wheel it just stuffs it up an wears it out too quick so i used a combination of beadbkasting and paint stripper on those small parts. sandblasting will be the quickest and cheapest method.

[magoo]

Sandblasting young Oswald

[magoo]

What's a fram?

[Mark Austin]

I have a sandblaster guy that I use regularly, mostly for paint only.
When I gave him a frame with powdercoat on it to sandblast, he said it would not be worth it as it would be too rough.
From the look of the frame, the rust has got under the powdercoat and lifted it up, so it may not be a major issue to get it off with a chisel-like tool.
Guess I may have to get into it myself before getting sending it to the sandblaster. Care to have a go at painting it with two-pack when I've finished stripping it Mr Magoo?

Mark

[Mark Austin]

Anyone used this? http://www.choppersurplus.com/global/articles/howtoremovepowdercoating.html

[jimson]

Maybe get it acid dipped  jimson

[firko]

This is why I never powdercoat anything. I had a Maico frame done years ago and didn't like the colour. I tried to remove it but discovered just how hard the shit is and in frustration ended selling the frame with powdercoat still intact. I now only use cheap rattle cans for frame paint and it turns out brilliant and is easily removed or touched up.

[Maicojames]

Actually in almost all cases, you can heat it up ( the coaters curing oven works for this) and scrape off more than enough to easily blast. Never had a big problem with it myself, except that it didn't hold up to chipping as well as wanted.

[LWC82PE]

i agree 100% with firko. And you dont  have to live near the beach for it to be a problem. one small nick in power coating that goes un noticed and as soon a a bit of moisture hits the bare metal, it then rapidly creeps under the whole powder coating. seen it many times. with the paint i use at worst you will get a chip that will go back to the etch primer but not back to bare metal.

[Maico31]

I was told by a powdercoater that the best way to remove it was to burn it off. Sandblasting takes too long.

[LWC82PE]

yeah you can do that too.