Hot Rod Forum banner

1 - 6 of 6 Posts

·
Registered
Joined
·
2 Posts
Discussion Starter #1
I have a 57 chevy 4 door sedan. It has a few small areas of rust that needs to be filled in. My husband wants to weld the areas instead of using fiberglass. I have never heard of using a weld. Will that look better and will it look good? <img src="graemlins/sweat.gif" border="0" alt="[sweat]" />
 

·
Moderator
Joined
·
8,453 Posts
If the rust is very tiny pin holes and IF you can clean it to white metal, you can get away with filler but the best way is to cut out the rust and weld in patch panels. Of course you need to grind down the welds and straighten any warpage but that will give you the best repair. Getting rid of rust is a tricky job and if you miss just a little, you can easily ruin a $$$$ paint job, 'cause it ALWAYS comes back.

People are also having luck with rust stabilizers like POR15 which kill the rust in place, but again those are best used where the metal is still pretty solid, just with a little rust cancer. Once treated with the stabilizer it can be coated with filler and painted with confidence.
 

·
Registered
Joined
·
1,353 Posts
Donna, exsplain to me if you can exactly what the problem you are trying to fix and where it is.

If the problem you are trying to fix are rusted out areas that have completely rusted through the metal leaving a whole what your husband is probably thinking of doing is cutting out the rusted area and welding in a patch panel. This is a basic occurance and is the correct way to do it. Fiberglass and other filler should only be used for smoothing and finishing before painting, NOT for filling holes. If the fiberglass your speaking of is the cloth and resin type, none uses this method anymore, its just a quick fix that inexsperienced repair people use and welding in patch panels is much better and the correct way to do it. If you would exsplain to me exactly the damaged area and location I would be happy to go into a more in depth exsplanation and how-to for you.

HK
 

·
Registered
Joined
·
1,189 Posts
Fibreglass repair kits are correct to repair fibreglass cars, boats, trash cans, etc. It should never be used on real steel. Fibreglass does not like steel, so it will disengage and allow water to pool rotting away the panel worse than it was before.
Pinhole rust is often the "tip of the iceberg". The panel behind under the paint may be thin as piece of paper for 2 square feet around the holes. Correctly repaired (replaced) rootten panels are virtually forever. Incorrectly repaired panels may look good for weeks/months, even a couple years, maybe!!!
 

·
Registered
Joined
·
11 Posts
i agree fiberglass is just a quick fix.. the right way is to get a patch panel and weld it in not to hard of a job.. this way it wont come back and ruin your paint.. better to be safe then sorry
 
1 - 6 of 6 Posts
Top