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Why Measure Gloss?

Why Measure Gloss?

Gloss Meters provide an easy-to-use and objective way of inspecting surface luster, eliminating ambiguity of subjective observations. Gloss Meters give a numerical value to glossiness, which can be utilized in quality control and process benchmarks.

What Does Gloss Value Mean?

When light shines on an object, some part of it is reflected, refracted or absorbed. There are basically two ways in which the light reflects off a surface, specular and diffuse reflections. Gloss Meters measure the percentage of specular reflection. The incident angles can be set at 2 different angles of 20° and 60° (IG-331) to suit different surface conditions. Standard setting of incident angle for most applications is 60°.

High Gloss Surface

Specular reflection is the mirror-like reflection in which incident angle is identical to reflection angle in respect to surface normal. A polished surface gives more specular reflection and less diffuse reflection.

Low Gloss Surface

Diffuse reflection is the matte reflection in which incident light is reflected in a broad range of scattered angles. A sheet of frosted glass or cardboard gives less specular reflection and more diffuse reflection. We perceive such a surface to be matte or dull.


(Click Here For Available Gloss Meters)

  • Floor maintenance
  • Surface cleaning quality control
  • Stone and tile gloss measurement
  • Checking printed matter
  • Quality control of paint and ink
  • Polished metal surface measurement (chrome plating)
  • Inspection of paint protection and waxing
  • Auto-body paint inspection
  • Surface inspection of plastic mouldings
  • Evaluation of detergents and washers
  • Checking masonry and building exteriors

Benefits for the User

  • Used to show/evaluate the effectiveness and performance polishing and grinding operation.
  • Can be used for quality control
  • Increase user’s product value (by improving the quality of the service they provide)
  • Save time
  • To prove that quality standards have been met
  • To show high quality service has been achieved

(Click Here For Available Gloss Meters)


Source: Horiba

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