The cover in our bathroom over the hot water base board has rust speckles.
The original paint job is factory bonded. Is there a way to repaint this and
remove the rust speckles without stripping down the whole thing?
If you can remove the rusted part, you could just rub it down with
phosphoric acid and steel wool and then wet-sand with 400 grit and
The acid may or may not take off the factory finish, depending on what
If you really want it to look like new, you could have it
powdercoated, although a new heater is probably cheaper.
Sand it down, primer, then finish paint. If you don't get all the rust off,
it will just come back in a short time. The only 100% positive way to
eliminate it in the future is to sit when you pee and close the lid when you
Both Rust-oleum's rust conversion product (forgot the name) and Loc-tite's
'Rust Extender' convert the rust oxide from an oxidized surface to a more
stable compound - kida like the difference between ionic and covalent bonds
between atoms in their outer rings (appealing to your scientific mind, if I
actually go that right). You are actually encourage to only remove the
loose rust and *not* sand down to bare metal so taht there is enough
material for the conversion. I have used the product and after the process
is properly done there is little pitting of the surface where, otherwise,
material would be missing. If pitting remains which you cannot live with
just stop at an automotive body supply shop and ask for a tube of glazing
compound (someone can help out if there is a more proper name). I've had
teh sme tube for 15 years and it's still good. You just lay it on, allow to
dry and sand off excess, filling the depression. Prime and paint.
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