Acid Dipping body shell

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Re: Acid Dipping body shell

Post by mk1 »

Doesn't "Thermal Pyrolysis" sound better than "Cook it in an oven with the door closed"

:lol:
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Re: Acid Dipping body shell

Post by Alex »

I used ProStrip in Nottingham, and it was around £1150 delivered back to me in a covered trailer (it was January and even though their anti-rust coating is damn good, I didn't think 150 miles on an open trailer was a good idea), and the delivery was £300 ish of the overall price.

Next one I do will be e-coated for sure, the extra cost is a small amount of the overall rebuild total but gives you peace of mind for a decade or two.
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Toby
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Re: Acid Dipping body shell

Post by Toby »

In the past I have had shells and panels dipped and e-coated. Not too long a go I had the shell of a customers car done and the shell of my 1071 was done too.

Here is a picture of the way they come back when it has just gone for paint and rust removal. The shells are dipped in several acid solutions for about 4 days in total and rinsed after. I deliberately went don that road as the body work needed to be done and I wanted it to be done correctly, in other words not by the party that the dippers use for doing the body work.
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It comes back very clean and if there would be any weeping then it will show up.

Once the bodywork is done and the shell goes back for the e-coat, it turns out looking like this. As there is no more acid involved just rinsing and coating you are sure that there can't be any weeping after either.
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Now I do need to mention that this is done over on the mainland by a company based in the Netherlands, their processes might differ to the ones used by the UK based ones.
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Re: Acid Dipping body shell

Post by bill773mini »

I've had the last two projects dipped by Prostrip in Nottingham and been very happy with the results, I've had so bleeding issues etc either. I have had some horrific experiences with blasting and would always dip these days.
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Re: Acid Dipping body shell

Post by mini_surfari »

Thank you for all the reply’s,

I’ve put out for a number of quotes so we’ll see what comes back!
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Re: Acid Dipping body shell

Post by Pete »

GraemeC wrote:I had my GT shell done by Ribble Technology that Catmint mentions.

They use a thermal process to remove the paint, filler, organic material and then a dip to remove the rust. Followed by a phosphate wash to neutralise the acid and leave the shell with a zinc rich coating to prevent flash rusting (which works really well - mine sat for weeks before being painted).

I was really happy with the result and the price (and wait time) were nothing like the ‘big names’.
I was looking at getting them to do a shell soon.
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Re: Acid Dipping body shell

Post by bill773mini »

Pete wrote:
GraemeC wrote:I had my GT shell done by Ribble Technology that Catmint mentions.

They use a thermal process to remove the paint, filler, organic material and then a dip to remove the rust. Followed by a phosphate wash to neutralise the acid and leave the shell with a zinc rich coating to prevent flash rusting (which works really well - mine sat for weeks before being painted).

I was really happy with the result and the price (and wait time) were nothing like the ‘big names’.
I was looking at getting them to do a shell soon.
I was at my body shop a few months back looking at the 59 shell he's just finished for a member, that had been dipped by Ribble, I wasn't impressed. It had only been back 3 days and was already showing signs of surface rust. With Prostrip I've had a shell sit for 6 months with nothing happening at all.

If you look at the scuttle it's already going brown.
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Re: Acid Dipping body shell

Post by GraemeC »

That shell look like it either wasn't washed off with the phosphate stuff or it has been power washed off once returned - I had none of the heavy white run marks on mine, just a clean dull grey finish.
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