Surface finish hub
Category overview and RFQ checklist.
Surface finish hubSurface finish
High Gloss Polish on Injection Molded Parts
High gloss is a mold investment and a process discipline, not a checkbox on the quote form.
Surface finish
Plan gate and venting before you demand mirror gloss
SPI A1 and A2 need clean steel and stable process windows.
Gate location shows on glossy faces. Move it in CAD before polish hours are spent.
Optical parts may need controlled lighting for acceptance. Define that up front.
Quote checklist
What to send with CAD
Finish specs stall quotes when they live only in email threads.
Target SPI A grade
Gate and ejector map
Resin clarity grade if transparent
Keep exploring
Related finish guides
Open siblings on the same hub path before you lock mold texture on the quote.
Color options
Appearance and resin color control.
Color optionsSPI finish chart
A1 through D3 on one page.
SPI finish chartMolding textures
MoldTech and VDI selection.
Molding texturesTexture selection
Pick a spec before steel is cut.
Texture selectionFAQ
Common questions
How long does high gloss tooling take?
Polish adds lead time to mold build. State gloss targets when requesting schedule quotes.
Next step
Ready to attach a finish target to your upload?
NetProto quotes one hardened steel tool with piece price. Finish level still drives DFM and mold texture scope.