Mold cavity blasted with #11 glass bead — the molded part comes out with a uniform, deep-matte, fine-pebble texture. Hides everything: flow lines, sink, the seam from the gate. Common on industrial / behind-the-scenes injection-molded parts where cosmetics don't matter, and on consumer parts that want to read tactile rather than slick.
SPI / SPE finish D1 — dry blast with #11 glass bead media on tool-steel cavity. Surface roughness Ra ~0.8 µm. D2 is #240 oxide blast (Ra ~1.0); D3 is #24 oxide blast (Ra ~1.6). All D-series are textured matte; the blast leaves an isotropic micro-pebble that completely breaks specular reflection. The maximum-defect-hiding finish — pour-paths, knit lines, minor weld lines all disappear. Often paired with textured grades of resin (matte ABS, satin polypropylene) so the molded part reads as deliberate texture, not as a cheap finish.
character — deep matte, fine pebble, hand-feel, hides all surface defects.
SPI / SPE Mold Surface Finish standards (A-1 through D-3); VDI 3400 mold-cavity texture reference plates.
House vocabulary — terms ForMatter uses with intent.
Materials and processes for people who design and make things.
A local-first library of materials, processes, applications, and finishes — equal weight, citable everywhere, so a student can move from "what is this" toward "what's actually buildable here, now, by me." Part of the renato.design ecosystem — sibling of Plenum, Specimen, Ingenue, gesture, graf, and the Renato Rhino plug-ins. Form and matter, inseparable.
Half of teaching materials is teaching how the material is made into the thing. The standard subscription library was always light on that half. The wedge here isn't better samples or a prettier interface — it's treating Process as a peer entity, not a footnote.
Conway, Lefteri, Forty, Sparke, ASM, GIA. Every voice: Voices.
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