metal floor

[rustplug]

Hey got a little situation, Im just getting started with my conversion, I have a 1990 BB TC 2000. I recently got the floor up and now Ive got rust and a few holes, nothing bigger than a half dollar. Im wondering what works best to patch holes, treat rust, and some type of top coat before putting insulation and new plywood down.

[Tango]

The best solution is to weld in a matching patch of steel.

[Mark_In_MA]

First best is to weld in a patch of new steel.

Second-best bet would be riveting in new patches. Do all your rust treatment and reforming first. If you can, I'd try and put the patches in under the floor (on the outside of the bus.) Round-ish hole, square/rectangle patch about an inch larger in each direction. Do the rust treatment first, and run a bead of caulk/glue around the outside of the hole and the outside of the patch before you rivet it in place.

Apply a coat of paint or two when finished. Inside the bus, the sub-floor will cover up any un-even spots.

[superdave]

how does the floor look from under the bus?

[austin1989us]

I used a fiberglass body filler. My rust holes were a little bigger than a half dollar.

[NowhereFast]

Used fiberglass resin, couple layers and it's pretty damn good. At the time I had never welded a thing in my life

[rustplug]

Right im thinking fiberglass or bondo as i am not a welder. Curious how it turned out.

[ericchurch]

Rusted floor is quite infectious, I would recommend to change the type and convert to wooden.