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Gloss is an important aspect of our visual perception of objects. The perception of gloss can relate to a product’s finish, texture and how a sample is illuminated and viewed. Surfaces with high reflectance are perceived as glossy, shiny or lustrous, whilst less reflective surfaces are perceived as semi-gloss or matt.
Gloss measurement is based on the amount of light reflected on the surface relative to a polished glass reference standard, measured in Gloss Units (GU). The amount of light that is reflected on the surface is dependent on the angle of incidence and the properties of the surface.
If the result is between 10 - 70GU, the coating is termed 'semi-gloss' and should be measured using the 60° angle on the glossmeter. If the result is less than 10GU, the product is 'low gloss' and should be measured using the 85° angle on the glossmeter and if it is greater than 70GU, the product is known as 'high gloss' and should be measured using the 20° angle on the glossmeter.
All three angles should be recorded (20, 60 & 85°) when measuring gloss on anodised metals to ensure a complete understanding of the specular reflectance between the coating and the metal substrate.
If your sample is not very glossy, please choose 60 degree glossmeter for use. If your sample is high glossy, 60 degree gloss meter is not enough for your use, so please choose 20 60 85 degree gloss meter. All meet international specifications for the measurements of gloss on paints, inks, paper, plastics, card and metals.
3nh produced 20 60 85 degree gloss meter including model NHG268 touch screen gloss meter and HG268 tri angle gloss meter.
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Please email sales@3nh.com (Melorae Huang )
