Shot blast or Dip & strip..?

Author
Discussion

Paracetamol

4,226 posts

245 months

Wednesday 12th October 2016
quotequote all
chippy348 said:
My concern with this process is they put the shell in a big oven to "burn off" the paint and underseal the temp is quite high i wonder if they get any panel distortion
Not so far..my car is straight as a die

Edited by Paracetamol on Thursday 13th October 13:20

Paracetamol

4,226 posts

245 months

Thursday 20th October 2016
quotequote all
Apologies to everyone..on further checking with the company doing the restoration, they use (and have used for many years) a company called Pro Dip in Nottingham.

They have restored a very many cars using this process over a very many years and never had a single issue in respect of leaching etc. Given that they stand by this method (and without vested interest- except that of maintaining a strong reputation as E Type restorers) and I have seen their wonderful work, I can only go by what they say as opposed to internet pundits..

mph

2,338 posts

283 months

Saturday 29th October 2016
quotequote all
Paracetamol said:
Apologies to everyone..on further checking with the company doing the restoration, they use (and have used for many years) a company called Pro Dip in Nottingham.

They have restored a very many cars using this process over a very many years and never had a single issue in respect of leaching etc. Given that they stand by this method (and without vested interest- except that of maintaining a strong reputation as E Type restorers) and I have seen their wonderful work, I can only go by what they say as opposed to internet pundits..
You've raised some confusion, with me at least, by mentioning three different companies. I can assure you that one of the companies you mentioned was taken to court by a leading restorer and lost the case. They paid extensive damages.

They're hardly likely to tell their other customers that, are they ?

Paracetamol

4,226 posts

245 months

Sunday 30th October 2016
quotequote all
As I say..I do apologise for the confusion. I live thousands of miles away from where my car is being restored and have 5 restorations underway on various cars so do get mixed up from time to time.

RH Classics have used this same company on many many cars over many years and not experienced any issues. There is not better way of knowing if the process is good or bad then first hand experience over many cars. And they have the option to not use it and perhaps even make more money by stripping the paint themselves..

I hope to not be proven wrong but I have to trust them as the experts I have comissioned to restore my car..

Btw..its in no way naming and shaming if a court found the company negligent and awarded damages. Its a matter of public record and you can comfortably name the company to the benefit of all of this community.


72twink

963 posts

243 months

Friday 9th December 2016
quotequote all
Here are some images of a Lotus Sunbeam door that was dipped and then returned to the restorers who subsequently opened the seams to correct the perforation that had been revealed, as can be seen in the double skinned sections there is still quite a lot of rust brewing away that hasn't been treated and will eventually work its way out. Many classics these days live in heated, dehumidified garages and rarely see wet roads so such rust is never a problem ........ But it's still there, slowly eating away!




vpr

3,711 posts

239 months

Friday 9th December 2016
quotequote all
Much of the rust behind the joints etc is caused through not washing out the acid and neutralising it

I had a car which didn't have rust until a few years after it came back from being restored. The car had never been wet and was stored on a heated garage. Rust appeared in very strange places

mph

2,338 posts

283 months

Saturday 10th December 2016
quotequote all
vpr said:
Much of the rust behind the joints etc is caused through not washing out the acid and neutralising it

I had a car which didn't have rust until a few years after it came back from being restored. The car had never been wet and was stored on a heated garage. Rust appeared in very strange places
That's right. It's the residual acid that's the problem not the rust that's left behind.

I worked with chemical transport several years ago and I know that it's virtually impossible to guarantee all traces of residual acid are totally neutralised.

threespires

4,297 posts

212 months

Sunday 11th December 2016
quotequote all
mph said:
That's right. It's the residual acid that's the problem not the rust that's left behind.

I worked with chemical transport several years ago and I know that it's virtually impossible to guarantee all traces of residual acid are totally neutralised.
Thanks for this, we start on stripping the paint off my car next week & have been debating how to go about it. We have decided against dipping or blasting.