WebJan 10, 2024 · SPI standards A-1, A-2, and A-3 are the highest levels of mold polishing. They produce either a high gloss or transparent finish on plastic parts — for opaque grades of … WebJan 1, 2009 · In the U.S., most of us are very familiar with the SPI’s standard surface finish definitions, such as an A-1 diamond buff, C-1 Grit Stone or a B-2 Grit Paper finish. As you …
Mold Polish, Mold Texture, SPI Finish, Moldtech Texture, YS Texture
WebJan 4, 2024 · 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 SPI Finish B … WebNov 11, 2024 · SPI A-1 is for highly polished, transparent, or optically clear parts. SPI A-2 is for highly polished or transparent parts; SPI A-3 is for non-optical lenses or parts that need … gonna shine tonight jackson browne
Injection Moulding Surface Finish SPI Guide
WebSPI A-1. SPI A-2. SPI A-3. SPI B-1. 600 Grit Paper. Typical Application: Medium polish parts. SPI B-2. 400 Grit Paper. Typical Application: Medium polish parts. SPI B-3. 320 Grit Paper. … WebThe SPI surface finish standard covers 12 SPI grades of polish finishes split across four categories: glossy (A), semi-glossy (B), matte (C) and textured (D). The SPI mold finish chart below describes all twelve SPI surface finishes, including the finishing method and typical surface roughness. What’s the right SPI surface finish for each material? WebAug 13, 2024 · The SPI standards specify 12 grades of mold finish in four different categories that range from mirror-perfect to dull. Shiny Finish —SPI grades A-1, A-2, and A-3 specify high gloss finished on hardened tool steel molds buffed to a mirror luster with fine diamond powder suspended in oil. gonna shock the world bro