ForMatter/Finishes/coating/Paint sheen levels (gloss / semi-gloss / satin / eggshell / flat)
finish_coating_paint_sheen_levels

Paint sheen levels (gloss / semi-gloss / satin / eggshell / flat)

coating · polished · sheen scale, gloss-meter scale, GU rating, matte finish, glossy finish

Architectural paint comes in five standard sheens: high-gloss (mirror-like, shows every defect), semi-gloss (kitchens / trim), satin / eggshell (most living-room walls), flat / matte (ceilings, hides every imperfection). The chemistry is similar; the sheen comes from the resin / pigment / wax balance. The surface that reads brightest is also the surface that telegraphs every brush stroke.

Sheen level measured by gloss meter at 60° incidence (Gloss Units, GU). Industry conventions: high-gloss ≥85 GU, semi-gloss 35–70 GU, satin 15–35 GU, eggshell 10–25 GU, matte / flat <10 GU. Sheen tuned by pigment-volume-concentration (PVC) and the use of flatting agents (silica, micronized wax) — flatter paints carry more pigment, reflect more diffusely. Resin chemistry orthogonal to sheen — alkyd / acrylic / latex / enamel each available at every sheen. Cleanability roughly tracks sheen: glossier paints scrub better but show every nail-pop and joint-tape lap; flat paints touch up invisibly but mar with the lightest scrub.

character — spectrum from mirror-bright to chalk-matte; paint chemistry tunable across the gloss-meter range.

Finish properties

  • levelpolished
  • subcategorypaint sheen reference
  • applies topolymer, metal, wood, ceramic, stone

Second life

reversibilitymoderate — most coatings can be stripped chemically (methylene chloride for paint, NaOH for some powder coats) or thermally / mechanically (sandblasting). Some specialty coatings (DLC, ceramic) require commercial-service strip.
blocks substrate recyclingno
renewabilityfield- to shop-renewable — most paint and clear coats can be touched up or re-coated in service; powder coat and PVD coatings require a coating-house re-application.

SSPC / NACE surface-coating standards; manufacturer technical literature for the specific coating chemistry.

Citations

  • url · https://en.wikipedia.org/wiki/Gloss_(optics)
  • standard · ASTM D523 — Standard Test Method for Specular Gloss (60° / 20° / 85° geometries).
  • standard · ISO 2813 — Paints and varnishes: Determination of gloss value at 20°, 60°, and 85°.