Dipping Or Blasting
#1
Posted 20 November 2017 - 07:32 PM
#2
Posted 20 November 2017 - 07:35 PM
#3
Posted 20 November 2017 - 07:37 PM
#4
Posted 20 November 2017 - 08:08 PM
#5
Posted 20 November 2017 - 08:09 PM
I used Redditch Shotblasting and Washford Finishing in the past (almost opposite each other in Redditch Worcestershire).
I would avoid dipping as I have seen three cars processed this way where the rust was bleeding out of the seams within a very short space of time. Its probably an ok method if you can get all the chemicals out but there in lies the problem, my friends rust free American frogeye shell had rust bleeding out of the wing seams that you wouldn't believe after around 4 years, another friend did a mini clubman shell and had the same problem with the original rust free bootlid.
#6
Posted 20 November 2017 - 08:14 PM
#7
Posted 20 November 2017 - 11:20 PM
There could be issues with overheating panels and causing warping, alot is down to operator use.
What are you wanted it blasted with? Several media options available.
#8
Posted 20 November 2017 - 11:44 PM
I had my MG midget body blasted and the results were very good although it took a lot blowing through with an air line to get the media out. It was done on the isle of wight and the guy was really dedicated
I was concerned about wrapping the panels but also didn't want it dipped for the reasons mentioned above
#9
Posted 21 November 2017 - 12:03 AM
#10
Posted 21 November 2017 - 08:15 AM
There's no need to blast the large flat areas unless you suspect damage. Go round the edges and seams and let the bodyshop flat the paint or use a chemical stripper if you want a bare metal job.
I wouldn't bother with an e coat either. A decent epoxy primer is better in my view
Merv
#11
Posted 21 November 2017 - 09:26 AM
There's a company south of Bristol called BlastingDiePast that does a lot of VW camper work and has a good reputation for blasting.
The pro's and cons of blasting versus dipping are frequently argued, dipping should in theory be kinder to thin panels but there is the possibility of the acid remaining in seams and causing problems later if not fully neutralised. However blasting doesn't clean in the seams at all and spraying primer may not penetrate the seams and closed sections as well as E coat.
Both are a lot more expensive (@£1500 ?) than manually sanding but do move a project forward more quickly once you've had the treatment(s)
#12
Posted 21 November 2017 - 10:16 AM
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