DIYbanter - View Single Post - Super-strength rust/iron remover needed

boden

wrote:
On Fri, 12 Sep 2008 21:48:42 -0700 (PDT), "hr(bob) "
wrote:

The tenants at my daughter's rental property let the bathtub faucet
drip for a couple of years, building up a
rusty area about 12 inches in diameter beneath the faucet, except
directly under the drip where the build-up was washed away. I tried a
spray-on iron/rust remover, but it only helped around the edges. I
was able to scrape off a little portion using a screwdriver, but am
scared that I may damage the tub. Can anyone recommend a super-
strength remover? I vaguely remember something about oxalic acid as
being useful, but not sure.

TIA,

Bob Hofmann

OxiClean usually a laundry soap contains oxalic acid.
It is sold at Home Depot.

Iron out can also be used.
Oxiclean does not contain oxalic acid. It is a percarbonate which
hydrolyzes when mixed with water to ultimately produce free oxygen.