BYK Additives & Instruments

Geretsried, September 16, 2013

BYK-mac i: Unique portable spectrophotometer to quantify fluorescent light

BYK-Gardner - worldwide partner of the automotive, paint and plastic industries for quality control of colour, appearance and physical properties - is introducing a new instrument to objectively detect and quantify fluorescent light excited in the visible range: the BYK-mac i.

The BYK-mac i is equipped with additional out-of-plane sensors that measure the fluorescent light in clearly defined wavelength ranges. To quantify the fluorescent light, BYK-mac i calculates a new index known as the “Intensity Emission value” which can be used as a preliminary indicator for light fastness. Due to the highly stable LED illumination fluorescent colors can now be measured repeatable with one BYK-mac (no warm-up time, no temperature drift) and reproducible from BYK-mac to BYK-mac (no lamp aging). This allows usage of digital standards among the complete supply chain – the key to global color QC management.

As its well-known predecessor the BYK-mac, the new BYK-mac i spectrophotometer objectively measures total color impression of effect coatings:

  • Flake characterization by measuring with a camera the visual impression of sparkling and graininess, simulating effect changes under direct and diffuse lighting conditions
  • Multi-angle color measurement “before and behind the specular reflection” to give more information about color travel of special effect finishes

The shape of the BYK-mac i is designed to ensure easy handling and true portability. In order to guarantee stable readings on flat and curved samples, the BYK-mac i is equipped with trigger pins on the bottom plate of the instrument. Menu guided operation according to customer specific sampling procedures, designated buttons for standard and sample readings and a large, easy-to-read color display make quality control of effect finishes truly efficient. For further analysis and professional documentation of measurement results, the BYK-mac i comes with the software smart-chart for process control and lab analysis with online mode.

More information is available from BYK-Gardner GmbH, P.O. Box 970, 82534 Geretsried, Germany: By fax: +49 8171 3493-140, the free service no. 0-800-gardner (0-800-4273637) or on the Internet at


About BYK Additives & Instruments: 

BYK Additives & Instruments is one of the world’s leading suppliers in the additives and instruments sector. Approximately 87% of our sales are generated by foreign countries. Our major export markets are Europe, the United States, and the Far East.
Additives are chemical substances that are used in small quantities to improve product properties such as scratch resistance or surface gloss. Manufacturing processes are also optimized through the use of additives.
The coatings, printing inks, and plastics industries are some of the main areas of application of BYK additives. Yet in paper surface finishing, or the production of adhesives and sealants as well as construction chemistry, BYK additives are also improving the product properties and production processes. In 2009 BYK extended its portfolio with raw materials for the production of mold release agents for aluminum die casting.
BYK Instruments can quantify the quality of color and gloss and the physical properties of paint, plastic and paper products. Instruments from BYK are predominantly used for quality control.
BYK Additives & Instruments is a member of ALTANA, Wesel. ALTANA develops and produces high-quality, innovative products in the sector of specialty chemicals.
BYK Additives & Instruments employs around 1,400 people worldwide, 25% of whom work in research and development departments or technical laboratories.