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Gloss

micro-gloss

New Gloss Instruments for toughest QCrequirements
The automotive interior design is getting more and moreimportant in the purchasing decision. A variety of materials, from leather to plastics, are used and need to be harmon -ized. Additionally, the surface structures vary from large grains to fine stipples with usually very matt appearance. In order to guarantee a uniform look among the various parts very tight tolerances are specified. Typical Tolerances:Gloss 60° <5 gloss units±0.3 to 0.5 gloss units micro-gloss S family
Only testing instruments with excellent precision will beable to objectively control the production. The new micro- gloss S family offers an improved performance for 60° gloss in the critical low gloss range (0-10 GU). The excellent accuracy can be guaranteed due to our patented calibration procedure in production.For any material: paint, plastics or highly reflectivemetalsLong-term stable calibration and automatic check ofcalibration standardTemperature stable data 10 years warranty on the light source Difference and Pass/Fail Statistics and Memory (999 readings) Easy menu operation with scroll wheel easy-link software for direct transfer to Excel As a starting point master standard plaques are manu fac -tured with usually a flat and several grained areas. These are sent to the suppliers as their target to achieve with actual production parts.As the master plaques and final parts are often made ofdifferent materials the suppliers work closely with the car maker. At the end the final approval is given on a produc -tion part. This production part now becomes the standard for the supplier. Approved Part
® Production QC standard Technical Specification
Measurement range 0 to 10 GU10 to 100 GU100 to 2000 GU Check of Production
Repeatability ± 0.1 GU± 0.2 GU± 0.2% Reproducibility ± 0.2 GU± 0.5 GU± 0.5% Instead of working with absolute gloss numbers thesupplier production QC needs to be based on the signed-off part and only the differences are checked. This procedure eliminates the reproducibility error as gloss is measured relatively on the same type of material and same surface. 18 BYK-Gardner USA • Phone 800-343-7721 • Fax 800-394-8215