It is getting about time to install my interior, and before I do that I need to repair a few small (not bigger than a pea) holes in my floor.

Is there any product I can use to get these holes sealed up, other than welding?

Most people will say "cut it out" but POR has a decent kit for these kinds of repairs. I have used the 2 part epoxy and it's great.

http://www.por15.com/product.asp?productid=305

bondo body filler, or fiberglass repair

The combination of POR and then their epoxy works well. If you don't want to use their kit, you can use hardware store epoxy.

JB WELD!

powermesh (http://www.por15.com/product.asp?productid=81)
Por patch (http://www.por15.com/product.asp?productid=8)

Use "All Metal" or "Metal To Metal" body filler.

Either one will still be there long after the car's gone!!
Throw a piece of masking tape on the backside to back up the filler, spread out the filler and after it sets, spray a little rattle can undercoating on both sides if you can.
(This is not recommended for restorations, only a quick fix!)

Your local auto paint store should have what you need.

Have Fun!

webfoot -- I have used the Por-15 product on my Camaro floor as seen below. I was trying to avoid the whole welding thing too, but now it looks like I may have to bite the bullet on the '68 Chevelle I'm working on.

Before:
http://img.photobucket.com/albums/v206/error3b/camaro_pics/627cb855.jpg

After:
http://img.photobucket.com/albums/v206/error3b/camaro_pics/039e64f2.jpg

I'm pretty happy with the results. The Passenger side was fairly rough .. but you only could see the holes if put a shop light under the floor. The Driver side toe board had an actual hole where it met the front floor pan. I sealed the entire floor when I was done, hence the black.

Wow, lots of good tips. Thanks guys! And that "after" pic looks pretty good! Was that the "POR-15 in a tube" stuff?

Another vote for Por 15 and their Powermesh. I used it to reinforce a couple of areas that had some pitting. It wasn't bad enough to justify new floors, so I opted for the Powermesh. It's made for pinholes and damage that is confined to smaller areas.

OK, it sounds like this is the stuff to do the trick. I hope this stuff comes with good instructions because I have never attempted anything like this before. My floor is nowhere near the one in that camaro, but it could probably use some reinforcing.

My vote is with JB Weld. Very good stuff I use fluently around the house/shop.

Wow, lots of good tips. Thanks guys! And that "after" pic looks pretty good! Was that the "POR-15 in a tube" stuff?

webfoot -- I got the Por-15 "Trunk and Floor Pan" repair kit. It was 120 bucks. It's a 3 step process ... 1.) preparing and cleaning the metal to be repaired 2.) Apply base coat rust encapsulator and mesh 3.) final top coat.

Once the stuff dries, it's rock hard. I used the whole kit on my interior floors, repairing the passenger side floor and and driver side toe board, but sealed the entire floor. I'm pretty happy with the results.

Here's the link.
http://www.por15.com/product.asp?productid=305

OK I just ordered the POR-15 patch and the fiberglass mesh. My car will be far from a show car so at this point I'll just leave well enough alone. I just want to get it done!

Thank you all for your help.

I know were you 're coming from on the show car front. Good luck with the product. If follow the directions to the "T", I think you'll be happy the final results.

As long as you follow directions and make sure that all the loose crap has been removed before you apply the stuff, you should be fine. POR is super-tough, but not for Structural repairs. As long as the braces and such are solid, you'll be fine.

The braces are definitely rock solid. It is surprising how well that stuff held up given that some other places on the car were so rusty. The floor looks surprisingly good actually, save for those few tiny aforementioned holes. Maybe I'll try to post before and after pics too. But I won't get to this until next weekend at the earliest. By then I should have my autometer tach and then it'll be time to install the dash too!