Gloss

Overview

Gloss is an opti­cal pro­per­ty of a sur­face, cha­racter­ized by its ability to re­flect light. If a light beam strikes a sur­face – e.g. a lacquer – with a cer­tain angle of inci­dence (ε), most of it will pene­trate the layer of paint, the rest will be re­flec­ted.

Usually, the measuring results for paints and varnishes are indicated between 0 and 100 gloss units. It is important to remember that this number is not a value in percentage. The reflectometer value is not related to the amount of light but to a black polished glass standard of a defined refractive index (1,567). For this standard, the measured value is set to 100 gloss units (GU).

Polished metals, mirrors and certain foils have a much higher refractive index than varnishes and as the black glass standard used for calibration. For this reason, you may find much higher gloss values than 100 for these products, in fact up to 2‘000 GU.

ZG 8000

ZG 8000

Glossmeter

Ultra-small precision glossmeter with display, USB cable and Bluetooth interface to iPad. Can be used especially on the smallest surfaces and in limited spaces. Battery included.

ZGM 1020

Glossmeter

The classic portable precision glossmeter for measurement of different surfaces from matt to high gloss usable in all industries.

ZGM 1120

ZGM 1120

Glossmeter

Small-sized precision glossmeter with USB-interface which is especially suitable for gloss measurements on the smallest of parts and on very confined surfaces.

ZGM 1130

ZGM 1130

Glossmeter

The very first glossmeter featuring a 2.4” touchscreen display for measurement of all gloss ranges from matt to high gloss up to 2‘000 GU.

ZOL 1150

ZOL 1150

Online-Glossmeter

Tailored gloss-measuring system for industrial areas for contactless online measurement of all gloss ranges from matt to high gloss up to 2‘000 GU.

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