Classic Audi » Technical » Mech/Tech » Bodywork, glass & exterior fitments » Stripped or Blasted

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Old 08-02-08, 02:44 PM   #1
Baggee
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Default Stripped or Blasted

Has anybody had any parts of their cars proffessionaly stripped or blasted before being sprayed? And if so where is the best place to go? I have purchased 2 wings which are in bloody good condition apart from a little bit of surface rust around the fixing holes. I want them blasted then primed/filled for future needs.
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Old 08-02-08, 03:40 PM   #2
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You could get some chemical stripper to remove the rust completely and then lead load the craters before doing them...?

Comapny called Armack chemicals in Lye do a product called "armaphos" that you can drop parts in or paint it on and itll completely dissolve the rust mostly overnight. Makes it easy to paint prep when the hard works been done for you. Bout 12 quid for 5 litres but goes a long way indeed.

Heres a few pics i took when i stripped the rear sus down.



Left this item in overnight as it was heavily rusted.



Before:


After:






Dosent attack rubber bushes, washes off with water and leaves a phosphated surface if you follow the instructions.
Easy peasy.
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Old 08-02-08, 04:30 PM   #3
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Cheers for the info. Does it say in the instructions if it reactes with primer or paint?
Chris
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Old 08-02-08, 04:45 PM   #4
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From what i remember it didnt attack the powder coating, cant say regarding ordinary paints but i suspect itd be ok on it.
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Old 28-01-09, 10:06 PM   #5
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there is a new process called soda blasting which is perfect for stripping paint.
try typing in on google.
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Old 28-01-09, 10:16 PM   #6
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was just going to suggest the same thing. Effectivley with soda blasting you are using soda bicarbonate (baking powder) to take the rust off. It's gentle so can be used on fibreglass panels and very environmentally friendly. You could also try bead blasting which is slightly more vigorous as it uses nylon beads. Be careful with sand blasting and go to a reputable company that specialises in body panels. I believe there are many grades of sand used in this process ad it can be very harsh. If too course sand is used it will just blast through the metal.

Tony 4v6 may have some good advice as he does some blasting aa part of his powder coating ventures.

Good luck an if it's not too bad you may not go too wrong with some good grade sandpaper and a bit of elbow grease
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Old 29-01-09, 09:27 AM   #7
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you can get rid of rust a lot cheaper than that if you can get the component into a container big enough to submerse it completely all you need to do is go to asda or tesco whoever buy there cheapest malt vinigar and soak it over night for the same finish you can hang break callipers in it while still on the car to get rid of the rust and it wont damage seals or pipes works a treat , its better if you can get a good fitting lid to cover container then wipe clean and paint easy , and at about 30p a bottle cheap to check out this link its quite impresive

http://www.cookhaus.co.uk/vinegar/index.htm
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Old 29-01-09, 01:39 PM   #8
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wow going buy me some vinger
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Old 29-01-09, 01:39 PM   #9
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Quote:
Originally Posted by kerker21 View Post
you can get rid of rust a lot cheaper than that if you can get the component into a container big enough to submerse it completely all you need to do is go to asda or tesco whoever buy there cheapest malt vinigar and soak it over night for the same finish you can hang break callipers in it while still on the car to get rid of the rust and it wont damage seals or pipes works a treat , its better if you can get a good fitting lid to cover container then wipe clean and paint easy , and at about 30p a bottle cheap to check out this link its quite impresive

http://www.cookhaus.co.uk/vinegar/index.htm
I use this on most of my parts and it works a treat, you can leave the vinegar in the bucket/container and use it a fair few times before it needs emptying and replacing (i usually filter off the grit and rust then reuse). The metal does oxidise quicker once removed and washed though so if parts need painting/powder coating then rinse thoroughly and then dry at lowish heat. You may get some brown surface coating which comes straight off
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Old 29-01-09, 04:01 PM   #10
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That's brilliant for bare metal parts or corroded parts. I have 2 spare painted wings so don't think it will work on those tho. Still a great way of cleaning parts tho
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