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Weld repairs - before or after media blasting??

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camerashy Posted a lot Posts: 1,153	Weld repairs - before or after media blasting??camerashy @camerashy
	Jul 11, 2012 19:42:50 GMT Select Post Deselect Post Link to Post Back to Top
	The Datsun is getting walnut blasted next month, should I do the welding before or after it's been blasted? I'm picking up the generator on friday so I could in theory crack on over the weekend and likely finish ALL the welding that needs doing - there really isn't much, just lots of tiny holes to fill, or is it more advisable to wait until after the blasting is done and then weld? I can't really see it making a difference, just wondering if anyone has any suggestions/past experience on the matter. Cheers


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CR500Dom Posted a lot Posts: 4,935	Weld repairs - before or after media blasting??CR500Dom @cr500dom
	Jul 11, 2012 20:35:20 GMT Select Post Deselect Post Link to Post Back to Top
	I`m finishing all the metalwork on the Kadett before it goes for blasting, on the basis that it can then go straight in to prep and paint
	Supercharged Kadett Build on Retro-rides: retrorides.proboards.com/index.cgi?board=readersrides&action=display&thread=36727&page=1 Golf2 Syncro Build on Retro-rides: urlfairy.com/4z Sept 12, 2008 10:10:09 GMT @Hotwire said: I have no modesty.. I am literally amazing.

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composimmonite Posted a lot Posts: 4,681	Weld repairs - before or after media blasting??composimmonite @composimmonite
	Jul 11, 2012 21:14:59 GMT Select Post Deselect Post Link to Post Back to Top
	Two methods and only you can choose what is best for yourself. I'm going to have my Sprite shell blasted and zinc primed BEFORE I restore. That way metal that looks sound but in fact is paper thin due to internal corrosion or pin holes will be obvious. I've seen people do it after thinking every bit or rust and rot was removed only to have holes appear when blasted so they have to take the vehicle back home and start welding again.
	Last Edit: Jul 11, 2012 21:28:34 GMT by composimmonite

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will Posted a lot Posts: 4,023	Weld repairs - before or after media blasting??will @familybanger
	Jul 11, 2012 21:31:08 GMT Select Post Deselect Post Link to Post Back to Top
	I take it just the shells are used for walnut blasting then Using the nuts would be a wanton waste. I wonder how many walnut wips have to be eaten to blast the average car


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supercustom1 Part of things Posts: 300	Weld repairs - before or after media blasting??supercustom1 @supercustom1
	Jul 12, 2012 5:11:08 GMT Select Post Deselect Post Link to Post Back to Top
	Would get it blasted first then you can see any hidden nasties. Better than doing the welding. Having it blasted then finding a load more work you never though was there.
	1999 micra. Puch bike and nirve chopper.

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rustempire Part of things Posts: 496	Weld repairs - before or after media blasting??rustempire @rustempire
	Jul 12, 2012 17:30:40 GMT Select Post Deselect Post Link to Post Back to Top
	Very much hoping you don't have 1% of the surprises that happened when the last one went for blasting Good luck, Rob
	'55 Austin A30 '71 MGB GT '72 Datsun 240 shed '72 Mercedes 240D '79 Firebird '86 Austin Maestro Van '91 Mercedes 250D '91 BMW e34 535i Sport '92 Mazda MX-5

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