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| | | | Joined: Oct 2003 Posts: 30 Junior Member | | Junior Member Joined: Oct 2003 Posts: 30 | i'm working on my 50 chevee!! i have found alot of pitting...would ya recomend using a rust killer and then bondo or lead to fill the pitting.., if lead is able to be bought ???or can i weld passes with a mig and grind it down ?many thanks ..gary  | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | What metal are you talking about? Sheet metal, frame? | | | | | Joined: Nov 2004 Posts: 338 'Bolter | | 'Bolter Joined: Nov 2004 Posts: 338 | Good question, I'm in a similar situation.
I found lead supplies available at Eastwood.
Does anyone know if you need an oxy-acetelene torch to do the soldering? | | | | | Joined: Feb 2001 Posts: 164 Shop Shark | | Shop Shark Joined: Feb 2001 Posts: 164 | I won't comment on what to treat those pits with, but will offer the suggestion that you take a very good look at the other side of the steel in question. Those "pits" could be in reality tubes through or nearly so to the other side and if you don't get that side locked down any work on the outside will become blisters shortly. Ask me and half the guys on here how we know. ;^) Bruce Palmer [email protected] | | | | | Joined: Oct 2003 Posts: 30 Junior Member | | Junior Member Joined: Oct 2003 Posts: 30 | i'm sorry...i'm working on some of the body work ...i don't know of the origin of the truck (where from) but i have alot of pitting on the body ...i was just woundering if anybody had any solutions.......gary | | | | | Joined: Nov 2001 Posts: 481 Shop Shark | | Shop Shark Joined: Nov 2001 Posts: 481 | I've been working with badly pitted sheetmetal. I alternately spray the surface with a phosphoric acid solution and then use a wire brush attachment in a small grinder to clean the pits. The process is slow and laborous if you want the pits absolutely clean.
I have also used a suction sand blaster with good results using copper slag. Of course, you have to be careful as even the low pressure sand blasting is heating and removing metal.
Another alternative is to use the phosphoric acid and wire brush to remove the loose rust and convert the remaining pits. Apply a moisture cured urethane primer. Sand the surface allowing the urethane primer to remain in the pits. Spray epoxy primer over all. | | | | | Joined: Aug 2004 Posts: 196 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2004 Posts: 196 | before you go farther make sure it aint rusted out between the windshield and hood i did a ton of work on my cab only to discover the rust lucked out and found a nice cab saved lot of work | | |
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