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Fixing rust through spots ?

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Larry in GA.

02-08-2008 03:25:56




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What is the best way to fix this ? Will something like POR-15 epoxy putty wok on something this big? Larry




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GlenIdaho

02-11-2008 08:27:40




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 Re: Fixing rust through spots ? in reply to Larry in GA., 02-08-2008 03:25:56  
Larry;

If you have access to a mig welder your might try welding some sheet metal. It's surprising how easy it is. A little practice on some scrap and you'll see. You'll need to play with the heat and speed settings. I didn't weld that well either and bought a mig. My welding improved dramatically even to be able to do sheet metal.



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Hobo,NC

02-10-2008 14:54:32




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 Re: Fixing rust through spots ? in reply to Larry in GA., 02-08-2008 03:25:56  
You are gonna find rite much more rust when you go to clean it up,,, pin holes galore,,, the inside frame needs to come out,,, it will not come out in one piece,,, you are gonna have to cut it some were in the middle and take it out in 2 sections,,, the frame is spot welded all the way around,,, rite smart of a job to git it out. Any repair you make is gonna b in the way of put'n the frame back in so B careful how much you build it up,,, on the ends of the frame use bolts and spot weld it back up,,, leave the bolts,,, grind some relief for the radiator side frame,,, its a close fit and i have never had one fit I repaired less I took a grinder to the hood frame were it fits up to the radiator,,, the hood should fall off and fall on,,, no jump'n on it to git it on... I said after the last one i fixed I would never do anutter,,, I cut up a better hood to fix the one I was working on,,, I had already sandblasted the bad one and did not know the Donner was in that good of shape,,, the donor did need a nose job. you are in for a project if done right,,, a aftermarket will look good to ya wait and see. I have welded patch panels,,, ell of a job and done a pucky job,,, pucky from the back with dynaglass or water proff bondo with fiber,,, apply the pucky to wax paper and press it into the rusty holes,,, pucky will not stick to wax paper,,, even then i did not like it so fiberglass mite b the rt. I take on the next one,,, the dynaglass trick does work best were its tuff to git at the back side,,, Zane has a trick also you mite ask him for it,,, i have his email if you need it or start a post over on the 2n 8n 9n side,,, if you got the time enjoy it,,, I do if I have the time,,, good hoods are priceless

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Bob Thomas

02-10-2008 08:15:42




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 Re: Fixing rust through spots ? in reply to Larry in GA., 02-08-2008 03:25:56  
Larry---If you are serious about the epoxy I may be able to save you some time and $$$. Go to bateau.com, then to boatbuilders central, on the left side click marine epoxy. At the bottom of the page on the left you will see a trial kit for $25.00. Should have everything you need. These people are out of Florida and are reputable. The trial kits are great value. I bought a gallon about one year ago and still have 95 percent of it left. Wish I had bought a trial kit.

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Larry in GA.

02-10-2008 02:33:45




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 Re: Fixing rust through spots ? in reply to Larry in GA., 02-08-2008 03:25:56  
Bob At that rate we may be neighbors. Because I’m north east of Valdosta. One day I will have to stoke the fire in the shop and start yelling and see what happens. Larry



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Bob Thomas

02-09-2008 16:49:10




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 Re: Fixing rust through spots ? in reply to Larry in GA., 02-08-2008 03:25:56  
Larry---If you yell loud I may hear you. I am south east of Tifton.



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Larry in GA.

02-09-2008 16:44:53




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 Re: Fixing rust through spots ? in reply to Larry in GA., 02-08-2008 03:25:56  
Bob I appreciate your insight I will try and come up with some and try doing it that way I don’t weld, Not good any way. so welding in new is out. How far north of me are you? I’m out east of Valdosta. Thanks Larry



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Bob Thomas

02-09-2008 16:24:15




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 Re: Fixing rust through spots ? in reply to Larry in GA., 02-08-2008 03:25:56  
Larry---Cutting and welding is no doubt the best. However, an excellent repair may be made with epoxy resin and fiberglass. Sand/grind loose rust away. Treat with a good rust converter. When the treated area is uniformly black, wash with water, dry well. Use epoxy resin and fiberglass cloth and/or mat as required. Epoxy is a boatbuilder's material. It is four times more expensive and ten times better. Buy no more than a quart. Stuff goes a long way. Mix carefully as directed. Glass from the inside and follow original contours as closely as possible. It is slow to cure. If you have followed the contours closely very little bondo is required. After the repairs are completed, you can tap it with a tool and it will ring similar to metal. Polyester resin (body shop stuff) has

poor adhesive qualities. Epoxy resin has excellent adhesive qualities and simply is an all around superior product. Presently I am rebuilding two Ford fenders with rust throughs as much as 20 percent on each fender. I fully expect these fenders to give another fifty years of service with no problems. Oh by the way "hello" from south Georgia.

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Jim in Ma.

02-09-2008 14:54:58




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 Re: Fixing rust through spots ? in reply to Larry in GA., 02-08-2008 03:25:56  
I fixed one sort of like that once. I sand blasted the whole thing than I put fiberglass matt on the inside and built up the outside to the profile I wanted. Still holding after about 5 years



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GlenIdaho

02-08-2008 06:38:19




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 Re: Fixing rust through spots ? in reply to Larry in GA., 02-08-2008 03:25:56  
The best way to fix something that severe is to cut it out the bad section and weld in a new piece from a donor. Or, if the surrounding metal is good just cut out the rusted area and weld in new pieces of sheet metal. I've never used any POR 15 epoxy. I'd be afraid it would continue to rust and or eventually fall out.



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