Filling rust pits/dents in pickup bed floor

[Phuscher]

I'm working on an old pickup bed. Sandblasted to bare metal, but there are rust pits and small dents in the bed floor. I plan to spray in bedliner, so the rust pits shouldn't be a problem (I hope), but I can't pull some of the dents because of the bracing underneath and the thickness of the metal. Is there a filler anyone would suggest that would hold up under bedliner on a pickup floor?

[Roch_Greg]

USC All Metal (http://www.uschem.com/products/index.html) is the filler I use on bare metal.

Use some Picklex-20 or similar after the blasting to make sure you've gotten the rust out and what's left is neutralize.

Greg

[Phuscher]

That much I have done. Now just trying to get the floor dings leveled out. Thanks though. I wouldn't have known to use the Picklex except for this site.

[Roch_Greg]

Okay I gotcha. I would still use All Metal to properly fill (thin layers at a time) the dings/dents.

I've been using this stuff for quite sometime (just yesterday over some weld seams as a matter of fact) and this stuff set's up hard as steel. I've whacked it with a ball peen hammer and it had no effect.

I'm no uber body man but my guess is since you can't pull the dings/dent's out or pop them out. Cutting and welding is not in the picture then filling is the only answer left.

All-Metal bills itself as a Lead filler replacement. Be advised it's tough to sand once fully cured. Use only their activator and make sure you get the ratio's right. Too much activator and the stuff will start to harden on the mixing board in a few minutes. Too little and it could take days for the stuff to cure.

I like to get the repair completed while using 80, 100, 120 grit to shape it, maybe 180 on the edges to feather. Once that's done I'll apply a polyester filler or glaze over the repair if the area is in a spot where it needs to be cosmetically perfect.

Greg

[Phuscher]

Oops. I saw your tip to use the Picklex and missed the All Metal suggestion. Sorry about that. It sounds like what I need. I'll give it a try. Thanks.