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This guide of typical finishes is to aid in
communicating with customers. Specifying these finishes on part drawings will aid the
moldmaker in providing the proper finish to the mold. Since the finish will vary with
different materials, this should be used only as a guide.
| SPI FINISH |
GUIDE |
| A - 1 |
GRADE #3 DIAMOND BUFF |
| A - 2 |
GRADE #6 DIAMOND BUFF |
| A - 3 |
GRADE #15 DIAMOND BUFF |
| B - 1 |
600 GRIT PAPER |
| B - 2 |
400 GRIP PAPER |
| B - 3 |
320 GRIP PAPER |
| C - 1 |
600 STONE |
| C - 2 |
400 STONE |
| C - 3 |
320 STONE |
| D - 1 |
DRY BLAST GLASS BEAD #11 |
| D - 2 |
DRY BLAST #240 OXIDE |
| D - 3 |
DRY BLAST #24 OXIDE |
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