Removing Pitting and Rust From an Enclosure

drlegendre . drlegendre at
Wed Jul 19 20:20:42 CDT 2017

Chuck is right, but pits can also be filled.. JB Weld is one suggestion. It
can be sanded perfectly smooth & painted over. You can also try using some
auto-body spot filler, though I don't know how tough that is.

If the rust pits are deep, you can use muriatic acid to clean the rust out
of the pitting before you fill & coat. Make sure to follow-up any muriatic
use with some phosphoric acid.. else it's going to flash-rust like mad. If
you don't have a bottle of it, RC Cola is a cheap & available source of
phosphoric.. yes, it's low concentration, but it's enough to do the job.

On Wed, Jul 19, 2017 at 5:53 PM, Chuck Guzis via cctalk <
cctalk at> wrote:

> On 07/19/2017 03:13 PM, Fred Cisin via cctalk wrote:
> > To get rid of the pitting, you would have to grind, brush, or mill
> > down to below the depths of the pits. Or fill them in (bondo?) and
> > paint over. Maybe paint it like an 026 punch?
> Crackle-coat paint looks very nice.
> Removing pits by sanding is laborious and probably not worth the effort.
> --Chuck

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