 Prepping Metal for Welding, Front Sway Bar and rear GT Reinforcement Kits |
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| MikeSpraggi |
 May 21 2009, 08:53 PM
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#1
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Senior Member  Group: Members Posts: 781 Joined: 7-February 05 From: Silver Spring, Md Member No.: 3,570 Region Association: MidAtlantic Region  |
What are some of your processes/techniques for prepping the metal for reinforcement kits before and after welding them in place. I'll be starting in a couple of weeks. Thanks
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| jmill |
May 21 2009, 08:58 PM
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#2
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Green Hornet Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest |
I remove the paint, use a metal prep and prime with weldable primer. I then remove any loose (burnt) primer, prep and then re-prime and paint.
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| Joe Owensby |
May 21 2009, 10:34 PM
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#3
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JoeO Group: Members Posts: 527 Joined: 7-January 06 From: Spartanburg, SC Member No.: 5,385 Region Association: South East States |
QUOTE(jmill @ May 21 2009, 10:58 PM)  I remove the paint, use a metal prep and prime with weldable primer. I then remove any loose (burnt) primer, prep and then re-prime and paint. I do the same thing, making sure to have all the metal covered with paint that I can- including the inside of pieces. JoeO |
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| MikeSpraggi |
May 22 2009, 09:43 AM
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#4
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Senior Member Group: Members Posts: 781 Joined: 7-February 05 From: Silver Spring, Md Member No.: 3,570 Region Association: MidAtlantic Region |
Thanks for the tips.
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| IronHillRestorations |
May 22 2009, 01:21 PM
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#5
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I. I. R. C. Group: Members Posts: 6,717 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None 
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Clean the paint and surface rust off with a 3M Bristle disc.
Treat with "Must For Rust", Ospho, or your favorite metal treament. Paint both surfaces of areas to be overlayed with 3M weld through primer. Scratch off weld through primer on weld areas. It makes it easier to start the arc, and you'll get fewer weld inclusions (crap in the weld bead). Don't make any welds longer than 1/2". You'll have to continually tap down the overlay as the heat from welding will make it lift off the base metal. Weld the perimeters completely. Clean off spatter and go over with bristle disc. Look for any weld inclusions, and grind out if/as needed and re-weld. Re-clean and go over with metal prep, (MFR, Ospho, etc), seam seal and paint with Du-Pont self etching primer, and supsequent primer and topcoat. This is what I do anyway. |
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