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Author Archive | Sarah Sands

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Zinc Oxide: FAQ

FAQs Concerning Zinc Oxide (PW 4) in Oil Paints PDF version: Zinc Oxide FAQ INDEX Zinc Oxide’s Use in the Past When did artists start using Zinc White? Why was Zinc used? What did it offer? Are older paintings containing Zinc Oxide falling apart? Why do some older paintings still look good? How Does Zinc Oxide […]

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Wall of Test Samples That Will Be Shipped in October to Arizona for Accelerated Exterior Lightfastness Testing following ASTM D4303

Lightfastness Testing at Golden Artist Colors

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 […]

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Texas National Guard soldiers arrive in Houston to aid residents in heavily flooded areas from the storms of Hurricane Harvey, Aug. 27, 2017. Texas Army National Guard photo by 1st Lt. Zachary West

Emergency and Natural Disaster Recovery Resources for Artists

Obviously in any emergency or natural disaster, such as the devastating flooding caused by Tropical Storm Harvey in the Houston area and Hurricane Irma in Florida, the first priority is the life and safety of yourself and those around you. As the water recedes, however, and people are able to return to their homes and studios, […]

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Titanium White Dark Yellowed for 1.5 Years then Exposed to Sunlight for 8 Hrs

What is Dark Yellowing?

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 […]

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SID Testing of Various Sealers on Hardboard where we looked at how effective GAC 100. Polymer Medium, and BIN were when using OPEN and Regular Gel.

OPEN Acrylics, Shellac, and SID

In many ways this article is a continuation from an earlier one,  Waterproof India Inks and Shellac-based Primers, which focused mostly on the alkaline sensitivity of shellac-based india inks when used with acrylics. However, towards the end of the article we briefly looked at  Zinsser’s B-I-N®, a common pigmented shellac primer, to see if it had similar […]

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