Yes we embrace SPI and other international plastic and molding standards.

GLOSSY SURFACE, DIAMOND BUFF POLISH

SPI Finish A-1 — Grade #3, 6000 Grit Diamond Buff

SPI Finish A-2 — Grade #6, 3000 Grit Diamond Buff

SPI Finish A-3 — Grade #15, 1200 Grit Diamond Buff

NON-GLOSSY SURFACE, PAPER POLISH

SPI Finish B-1 — 600 Grit Paper

SPI Finish B-2 — 400 Grit Paper

SPI Finish B-3 — 320 Grit Paper

ROUGH SURFACE, STONE POLISH

SPI Finish C-1 — 600 Grit Stone

SPI Finish C-2 — 400 Grit Stone

SPI Finish C-3 — 320 Grit Stone

VERY ROUGH SURFACE, DRY BLASH POLISH

SPI Finish D-1 — 600 Stone Prior to Dry Blast Glass Bead #11

SPI Finish D-2 — 400 Stone Prior to Dry Blast #240 Oxide

SPI Finish D-3 — 320 Stone Prior to Dry Blast #24 Oxide

 

SPI Finish A1 – S136 Hardness at 54HRC

(Generally called “Super High Glossy” in China)

SPI Finish A2 – 718HH or NAK80 Hardness at 40HRC

(Generally called “High Glossy” in China)

SPI Finish A3 – 718H or S136 Hardness 32HRC