Rust holes in the chassis of a convertible. Typically were the drain holes are.

I really dont want to have to get rid of the car.

Hope I can get pics later

 

Aside from welding in new metal, fiberglass is the way to go.
I work at a dealership/ bodyshop and we use a lot of glass and glass type options, and as long as you sand down all the rust, and affix the glass to bare metal (no paint of seam sealer) you wont have a problem...

 

Make sure you eradicate all of the rust by cutting/sanding before doing so.

Im sure if its not huge and goes on well i dont see why not

 

Glass is a cheap fix for rust repair, and its not permanent. Make sure all rust is gone and cut out the old metal and weld in new. Don't cheap out on frame work unless you have a death wish.

 

The rust doesn't effect any main supporting parts.

Thanks for the info guys.

 

You should know (and none of the "body shop emloyees" mentioned) that fiberglass (speaking of real matting and polyester or epoxy resin) will NOT ever form a permanent bond to sheet metal. They're two dissimilar materials with no chemical bond.......you're basically takign the expensive duct tape route by doing what you're doing. It'll hide a hole sure, but its going to provide zero intergrity, won't stop the corrosion (since its behind/inside the chunk you're glassing over) and *will* fall off or seperate eventually.

 

I know in aviation they use honeycomb and zinc sheets to make composite material...but I do feel safer with welding...I just have find a body shop who will do it for not so much.

 

even easier then fiberglass while more permanent would be to just rivet some sheet metal on there after cutting out the rusted area, then seam-seal it and/or fiberglass overtop for looks if you want. no need to weld it, structurally it's great.

 

That would probably be worse...specially since I live in florida...

 

riveted sheet metal has a great deal more strength then fiberglassing over a rusted hole, and it won't just flake off. You can do whatever you want.

 

your really talking about the floorboards, I have a vert and I know what your talking about. I also have removed all my drain plugs, I figure if water gets in let it get out and let air get in too.

For what your talking about fiberglass will be fine.

 

Water will surely get in now that the drains plugs are out