While we often report on results from lightfastness testing, we have rarely paused to actually describe the process we follow. And let’s face it, for most people stating that our tests conform to ASTM D4303, Standard Test Methods for Lightfastness of Colorants Used in Artists’ Materials, does very little to fill in the blanks. In an attempt to solve … Read more
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Dark yellowing is the reversible, temporary yellowing that dried oil paint undergoes when stored in the dark or subdued lighting. While noted in many historical writings, most painters remain unaware of it and become surprised or concerned when they discover it happening to their own works. Which makes sense. With no other context to go … Read more
Direct, exterior exposure is highly demanding on coatings, with the test fences set at a 45º angle to maximize the effect of sun, rain, snow and ice. In 1993 and again in 2009, long-term exterior tests of the acrylic colors lasting 4 and 3 years respectively were conducted in South Florida. From these results and in … Read more
The concept of warm and cool colors has been written about for hundreds of years. Most theories start with the classic six point color wheel (three primary colors and three secondary colors). A dividing line splits the wheel into warm and cool. The line location varies based upon the reasoning of the theorist. Regardless, the … Read more
It’s summertime and Munsell is in the air. Or at least it seems that way, given the increasing number of requests for various Munsell notations that have recently come our way. And if you happen to be new to Munsell, a widely used standard for classifying colors since its debut in 1905, not to worry – there is … Read more
You might have recently noticed that we updated our labels for Grounds, Mediums and Gels to aim for better clarity, accuracy and simplicity. While reviewing the labels, we decided to both standardize the descriptions of all of these products and double check the accuracy of the sliders which help convey opacity, sheen and thickness. In … Read more
We’ve all seen Iridescent and Interference effects when viewing soap bubbles, oil slicks, flower petals, bird feathers, and more. They are fairly common in the natural world. If they are somewhat less common in artwork, it might simply be that they still represent new and unexplored possibilities for most people, even after being part of … Read more
Mention a well-known pigment like Ultramarine or Cobalt Blue, and we instantly picture a very particular and unwavering color. And why not – it is easy to think of pigments as having characteristics that remain constant as one moves between different mediums such as acrylics, oils or watercolors. Even if we accept that the handling … Read more
Gold leaf has been used to beautify and evoke meaning in painting throughout history, functioning as a luminous counterpoint to flesh, fabric and nature. Artists today still use gold leaf, but have also added other metal foils, glitters, iridescent and interference paints to their palettes to activate and enliven their work. For oil painters looking … Read more
Editor’s Note 3/8/21 With YInMn Blue having been out for a while now, and with a lot of questions received and answered since this piece was published, we wanted to briefly provide an update: As noted in the article, the pigment has some unique strengths, being considered extremely lightfast, durable, and chemically resistant, as well … Read more