View Single Post
  #5   Report Post  
Andy Dingley
 
Posts: n/a
Default

On 25 Nov 2004 20:08:39 -0800, (Hylourgos) wrote:

Any tips for getting the rust out of the nooks and
crannies?


You can use wet pad electrolysis. The same old bucket process, but
you do it on the top of a rusty metal item that's too awkward to
submerge.

Turn the slot into a trough by sealing the ends with gaffer tape etc.
Pour electrolyte into the slot (washing soda in water) and then lay a
steel (or stainless steel) rod down the length of the slot, raised on
little plastic spacers (polystyrene foam pizza base is handy and tears
to shape) Power up, negative on the thing you want to keep.

There's no way to clear the rust out, so this process is awkward for
really rusty parts. But it's great for details and unlike abrasives is
non-damaging.

For rust spots on the surface, use a pad of paper towel or kitchen tea
towel, soaked in electrolyte. Use a steel plate anode on top and
weight it down, enough to make good contact, not enough to wring the
pad dry. Make sure the pad stays wet, by annointing it every few
hours. A big hole in the middle of the anode is handy for this.

--
Smert' spamionam