Keep in mind, due to the nature of Fluorescent colors, getting pictures or scans that show the contrast in luminescence between the control and samples is quite difficult. While the numbers tell us a lot, sometimes visuals do more to show what these changes will actually look like. Again, Blue overperforms with the remaining Fluorescent Colors rating as Very Poor with Delta E measurements averaging near 40. With this next data set we have the Average Delta E measurements of the 40% Reflectance Tint of Heavy Body Fluorescent Colors also unvarnished. Chart is based off of data scanned and compiled by Trevor Ambrose. Bracketed sections show the standard deviation or variability within the sample set. ![]() Lightfastness Testing at Golden Artist Colorsĭata set shows Average Delta E measurements of the 40% Reflectance Tint of Heavy Body Fluorescent Colors. For a more detailed explanation of how we conduct Lightfast Testing at GOLDEN see our article below: For outdoor testing, we sent our fluorescent samples to Arizona where they were exposed for a little over 9 weeks until they reached a total solar irradiance of 1260 MJ/m². ![]() For indoor testing we assess lightfastness by exposing samples within a Xenon Arc Testing Chamber for 410 hrs., which is equivalent to several months of outdoor exposure and roughly 100 years of indoor gallery lighting conditions. That means for this test we did a series of 10 mil color drawdowns ( the paint film being roughly the thickness of three sheets of copy paper) of Masstone and 40% Reflectance Tint of our Heavy Body Fluorescent Colors to be tested both indoors with accelerated lightfast testing and outdoors in natural light. As with all lightfast testing we do, our recent testing conforms to ASTM D4303, Standard Test Methods for Lightfastness of Colorants Used in Artists’ Materials. UEC or Unexposed Control for Fluorescent Magenta.īefore we share the results it is important to provide some context for how we conduct lightfast testing at GOLDEN. This expert Coating Drawdown Plate is made of high quality glass to guarantee the high quality and the durability with high quality skid-proof rubber feet to apply consistent and repeatable paint films and coatings.10 mil Drawdown of Masstone and 40% Reflectance Tint on Aluminum Card. This Film Application Drawdown Plate is manufactured with highest precision to guarantee a very smooth glass surface, the integrated Drawdown Card Holder holds Drawdon Cards well on the Film Application Surface to guarantee reliable results with the manual film application with high accuracy and high repeatbility. This expert Film Application Drawdown Plate is used for the manual paint film application similiar to the Automatic Film Applicator, however, the Paint Film Application is performed manually. This expert Drawdown Plate is manufactured in accordance with ASTM D823. Fits with most standardized Film Applicators.Extremely smooth Glass Table especially hardened. ![]() This expert Drawdown Plate is made of high quality glass to guarantee the high quality and the durability with high quality skid-proof rubber feet to apply consistent and repeatable paint films and coatings. This Film Application Drawdown Surface is manufactured with highest precision to guarantee a very smooth glass surface, the integrated Drawdown Card Holder holds Drawdon Cards well on the Coating Application Surface to guarantee reliable results with the manual film application with high accuracy and high repeatbility. This expert Coating Application Drawdown Plate is used for the manual paint film application similiar to the Automatic Film Applicator, however, the Paint Film Application is performed manually. High Technology Mart Drawdown Plate is a Paint Film Drawdown Surface and a Coating Application Instrument for the manual application of inks, paint films, coatings and similar substances on substrates and drawdown cards in accordacne with ASTM D823.
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