Product coating gloss

Test methods consist of determining the mirror gloss of coatings in three geometries: 20°, 60°, 85°
  • method with 60° measuring geometry is used for all coatings
  • method with 20° measuring geometry in which (in comparison to the 60° measuring geometry) a smaller angle of diaphragm aperture is used, allowing better differentiation in the case of high gloss coatings
  • method with 85° measuring geometry allows better differentiation (than the method with 60° measuring geometry) in the case of matt coatings.

Testing norm

  • PN-ISO 2813


  • micro-Tri-gloss BYK 20°/60°/85°
Document No. Title/Description
PN-ISO 2813 Paints and varnishes - Determination of gloss value at 20 degrees, 60 degrees and 85 degrees