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Update on getting a atte finish on gold


#1

Hi all. I just wanted to post a follow-up on the ring that I
wanted to get a matte finish on. I was not ready to invest in a
sandblasting machine (at least not yet :slight_smile: ) so I tried the glass
brush method that Linda suggested. Then I read somewhere, can’t
remember where, that a nice matte finish could be achieved by
making a paste of fine pumice powder and oil or soap, and appying
with a toothbrush or charging a felt mandrel. I did the latter
with a flexshaft and ended up getting a really nice finish that
looks antiquey and low key. Pretty much what I was looking for.
But I’m not sure how it will wear. I guess that will be a
future update.

Goodnight.


#2

G’day - yes me again! An excellent matte finish on any metal
can be achieved with a handpiece and burrs. Scribble over the
surface to be matted with a very tiny ball-burr, covering the
entire surface to be matted, holding the handpiece very lightly.
Go back to parts not covered properly. Use a bigger ball-burr and
scribble very short little curves about 2mmlong at most, at
random, and in all directions, pressing the burr a little more
firmly. And so on. Practice with a bit of copper or brass sheet
or pipe; you’think of all sorts of interesting textures - cheap
and easy. But don’t overdo it! Cheers, –

        /\
       / /    John Burgess, 
      / /
     / //\    @John_Burgess2
    / / \ \
   / (___) \
  (_________)

#3

An excellent matte finish on any metal can be achieved with a handpiece and
burrs. Scribble over the surface to be matted with a very tiny ball-burr,
Use a bigger ball-burr and
scribble very short little curves about 2mmlong at most, at
random, and in all directions, pressing the burr a little more
firmly. And so on.

Hi John,

… and hart burs, and the tip of a broken bur bent at 90 deg to
the shaft, and variously shaped points in a hammer handpiece,
and 80 grit sandpaper (worked by hand), and using rockered line
technique (tremolo engraving) with flat and dotter gravers
crosswise, and Florentine finish with lining gravers, and
etching, and soldering filings to the surface…

Markus

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