SPI A1 Finish

SPI A1 Finish

SPI A1 Finish (SPI A1 Mold Finish) is the first grade of the SPI Finish Standard. The finish features:

  • Typical Surface Roughness Ra : 0.012 to 0.025 μm
  • Finish Look: super high glossy finish (mirror finish)
  • Finish Method: Grade #3, 6000 Grit Diamond Buff
  • Suugested Steels: S136 (54HRC) or 8407(52HRC)
  • Suggested Plastics: Acrylic and PC

*Other SPI finishes are: SPI A2, SPI 3, SPI B1, SPI B2, SPI B3, SPI C1, SPI C2, SPI C3, SPI D1, SPI D2, SPI D3.