on polishing black coral. I have some lovely
branches with a natural matte surface and would like to achieve the
high gloss I've seen on finished pieces.
Barbara, You can sand the matt surface off with sandpaper, ending
with 600 grit paper. Then polish with yellow rouge using a muslin
buff. If you need to get into nooks and crannies, use rouge with
soft MK bristle brushes on your flex shaft.
If you want to speed things up, instead of sandpaper, you can use
bobbing compound on buffs and/or brushes to get rid of the matt,
shark skin-like surface. Clean off the bobbing compound residue and
then finish off with the yellow rouge.
How large are your branches? If they have very thin, tiny branch
terminations, it will be dangerous to try polishing them. The
branches may catch and break even if you polish by flexshaft. What
are you planning to do with them? If you just want mounted
specimens, leave them natural. If you’re talking about “y” shaped
pieces or other such small sections for jewelry use, you can polish
them quite easily so long as they are sturdy enough.