Barranca Diamond GP-6 Cabmaker - Manual (Page 17)

17
POLISHING WITH DIAMOND PASTE
The GP-6 Cabmaker comes with three syringes (5 grams each) of diamond paste in abrasive grit
sizes: 8,000, 14,000 and 50,000 mesh. These diamond pastes are to be used with the three 6" OD
Polytex polishing pads with adhesive backing on the foam covered convex 6" end polishing disc.
Once the gemstone material has been sanded and polished with the 3,000 grit (6 micron) diamond
resin belt, remove the paper backing on the Polytex pad to expose the adhesive surface, placing it
firmly without creases on the foam rubber convex surface of the 6" end polishing disc on the right end
side of the GP-6 Belts model (Fig 21) or left side of the GP6 Pads model.
Lightly smear with your fingertip a small amount of diamond paste on the center of the mounted Poly-
tex pad with the unit operating and the polishing disc rotating. The diamond paste will evenly spread
over the surface of the Polytex pad once polishing of the gemstone starts. Move the gemstone in a
rocking and rotating motion from the center of the disc toward the outside edge to achieve a uniform
polished surface.
Use only one dedicated Polytex polishing pad with each respective diamond paste syringe (i.e. keep
a labeled Polytex pad for the 8,000 grit paste in a zip-lock bag labeled 8,000 grit). Do not use a single
Polytex pad with two or more diamond pastes or else cross-contamination and poor polishing of the
gemstone material may result.
The Polytex pad can be removed from the foam rubber covering of the convex polishing disc by
slowly pulling the Polytex pad off the foam and placing it in a zip-lock plastic bag properly labeled with
the syringe paste diamond grit size for future use. No water or extender fluid is needed to effectively
disperse the diamond paste from the syringe to the Polytex pads. If the adhesive backing becomes
weak with repeated use, you can apply a few drops of 3M On/Off cement to improve the adhesive
connection to the foam disc.
GP-6 CABMAKER OPERATION AND ADJUSTMENT