Powdercoat Removal

Need some help with a technical problem - ask away and let's see if we can all help.

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chris68
DDK forever
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Joined: Thu Apr 28, 2005 12:54 pm
Location: Burton On Trent

Powdercoat Removal

Post by chris68 »

Hi,

Wondered if anyone has good experience of the best way to remove powdercoat from a tubular chassis.

The chassis has had some corrective brazing work done, hence the existing powder coat has burnt off in places. I want to get the whole thing stripped now for either painting or re-coating.

Seems like the options are;

Blast - needs aggressive media and I'm worried about pitting the frame
Heat - burn it off followed by gentle media blast, seems expensive and will take weeks
Acid - dip company prefers drain holes in the tubes to ensure acid isn't trapped

Not really keen on any of the options :? but need to move the project forward. Any sound advice welcome.

Thanks
'68 swb 911L (rhd)
'62 Lotus 22 (sold)
100cc Historic Karts
911hillclimber
Nurse, I think I need some assistance
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Re: Powdercoat Removal

Post by 911hillclimber »

I've been in a similar position on some motorcycle parts.
You need a good grit blaster, so having used them 4 times now I suggest you contact Redditch Grit Blasting for advice, obviously based in Redditch so not too far.

Maybe go the whole hog, blast clean and then have them re-coat?

Not expensive, but they really are good.
73T 911 Coupe, road/hillclimber 3.2L
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
Phill

Re: Powdercoat Removal

Post by Phill »

Angie grinder wire wheel?
Gary71
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Re: Powdercoat Removal

Post by Gary71 »

I’d imagine any powder coat place that could cope with a full chassis would be able to blast it as well. Maybe ask for a joint quote?

Angle grinder wire brush would work but would be pretty low on the fun factor :)
Lightweight_911
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Re: Powdercoat Removal

Post by Lightweight_911 »

.

I've used Protech Coatings in Wolverhampton many times over the past 10 years to media blast & powder-coat lots of parts.

It might be worth contacting them for advice:

http://www.protechcoatings.co.uk/


.
Andy

“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
chris68
DDK forever
Posts: 523
Joined: Thu Apr 28, 2005 12:54 pm
Location: Burton On Trent

Re: Powdercoat Removal

Post by chris68 »

Many thanks for the replies everyone.

You've convinced me blasting is the way to go. I'll appeal to whoever does it to be as gentle as they can. I did consider the wire brush method but it barely makes an impression on the power coat which has adhered very well to the frame and cured really hard too.

Cheers
Chris
'68 swb 911L (rhd)
'62 Lotus 22 (sold)
100cc Historic Karts
911hillclimber
Nurse, I think I need some assistance
Posts: 20700
Joined: Mon Mar 10, 2008 6:26 pm
Location: West Midlands

Re: Powdercoat Removal

Post by 911hillclimber »

If I may..
I would certainly get the blaster to paint it after, minimum chance of corrosion forming before paint.
At Redditch the same man does the job, blast and paint, and you can talk to him on delivery so can put your request to him directly.
73T 911 Coupe, road/hillclimber 3.2L
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
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