Acid dipping

Hi all, have been away from here for about 5 years as I took the mk1 off the road intending to do a full resto and like most projects I stripped it down and then left it like that until now, however I am now ready for doing something with the shell. What are peoples thoughts on acid dipping the shell? has anyone done it and got pictures or recommend  a company. SPL seem the obvious choice from using google.

Dave

Only my opinion, but I don't like the idea, it must get into all the welded seams and if not removed, just eat away at the metal. Even if it is all removed, whats it removed with,  water? Water and bare steel very quickly start to rust. As said only my opinion and others may know better.

I wouldn't acid dip, for similar reasons, I would use the dustless blaster or co2 blaster….

lets see Acid and Metal don't agree…..
Acid may not get under the undercoating.

Hope you have a metricbuttload of baking soda and a Pressure washer.

I visited a hot dip galvanising plant many years ago where they take metal (mainly very big fabrications) dip them in hydrochloric acid (very nasty) dip in a rinse tank and then dip in molten zinc (think the silver railings you see next to the road).  I have always fancied doing this to a restoration when I win the lottery, retire, build a nice workshop and have loads of time. Overall it should never rot after that but if any welding is needed then the galv will need to be ground back so you weld on steel as it causes splatter and if I am correct I think cyanide gas - nice. Not a huge problem but maybe some of the actual welders on here can comment on whether that is BS or not


Sent from my iPhone using Tapatalk

Backinblack said

I visited a hot dip galvanising plant many years ago where they take metal (mainly very big fabrications) dip them in hydrochloric acid (very nasty) dip in a rinse tank and then dip in molten zinc (think the silver railings you see next to the road).  I have always fancied doing this to a restoration when I win the lottery, retire, build a nice workshop and have loads of time. Overall it should never rot after that but if any welding is needed then the galv will need to be ground back so you weld on steel as it causes splatter and if I am correct I think cyanide gas - nice. Not a huge problem but maybe some of the actual welders on here can comment on whether that is BS or not


Sent from my iPhone using Tapatalk

its not cyanide, but zinc oxide fumes which you still don't want to be inhaling.

Do any of the companys offer acid dip them wash then epoxy primer dip? (like vw dip bodys in the factory)  if just sprayed on it would be useless. all cavitys would rust from the inside out.


 

I think there is a company in Tamworth that do it. Some guys in Cornwall that do complete resto work uses them and told be about them. I shall google and see if anything rings a bell


Sent from my iPhone using Tapatalk

Here you go that was easy http://www.envirostripgbltd.com/industrial/auto-restoration/


Sent from my iPhone using Tapatalk