ForMatter/Finishes/polish/Scotch-Brite hand finish
finish_polish_scotch_brite

Scotch-Brite hand finish

polish · satin · non-woven nylon abrasive, Scotch-Brite Maroon / Gray / White, hand-grain

Hand-rubbed satin from a non-woven nylon abrasive pad — the small studio's quickest path to a controlled satin or brushed surface. Unlike a sanding belt, the pad conforms to curves and corners. The default shop finish on small-batch / one-off metalwork: studio jewelry, custom knife furniture, prototype hardware.

3M Scotch-Brite or equivalent non-woven nylon-fiber web charged with abrasive (aluminum oxide, silicon carbide, or fine ceramic). Grade colors: Maroon = aggressive, ~120-grit equivalent (Ra ~0.6 µm); Gray = general purpose, ~320-grit equivalent (Ra ~0.4 µm); White = fine, ~600-grit equivalent (Ra ~0.2 µm). Conforms to curves and corners that a stiff belt can't reach. Hand-direction matters: long parallel strokes for satin / brushed; circular for isotropic matte. Fast, repeatable, finger-controllable. Standard small-shop metalsmith / knife / prototyping finish.

character — directional satin, hand-grain visible, conforms to curves, the studio default.

Finish properties

  • levelsatin
  • subcategorynon-woven nylon hand abrasion
  • Ra (µm)0.4
  • applies tometal

Second life

reversibilitymoderate — a polished surface can be re-roughened (sandblast, brush, etch) and a roughened surface can be re-polished; the substrate is preserved unless polishing-induced material loss is significant.
blocks substrate recyclingno
renewabilityvery high — polishing is the canonical maintenance operation for almost any hard surface; field-renewability is high for accessible surfaces, shop-renewability for everything else.

ASM Handbook Vol. 5 Surface Engineering; manufacturer abrasives literature (3M, Norton, Mirka).

Citations