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Williamsburg Alkyd Resin and Extender Medium

8 thoughts on “Williamsburg Alkyd Resin and Extender Medium”

    • Hi Joshua,

      Not sure. Some retailers do not carry the Extender Medium, so you might not have come across it. It is only available in 150ml tubes. Your local art supply should be able to order it for you if they don’t have it on their shelf. It is a really nice product. We hope you enjoy!

      Greg

      Reply
  1. Your alkyd resin looks amazing, however, it is only suitable for the upper layers of a painting. I find that underpainting is the quagmire that makes or breaks a painting. I wish you guys would undertake a study on the do’s and dont’s of underpainting… Painters are increasingly doing their underpainting in alkyd paints, then working over this layer with conventional oils. How archival this is, remains a mystery… Will you guys be bringing out a range of alkyd paints?

    Reply
    • Hi Alex – The author of this article, Greg Watson, is away this week but I didn’t want you to think we had forgotten you. I am sure he will chime in once he gets back. I can say that we do not have any current plans to develop a line of alkyd paints, but of course, alkyds in general are a category we continue to study and investigate. Also thanks for the suggestion about doing an article on the do’s and don’ts on underpainting. That is definitely an area in need of some clarity, so we will definitely add that to the list of topics to research.

      Reply
  2. Hello!
    Is Extender Medium gritty? If not, do you have something on offer that can add tooth to the linen white impasto layer?

    Reply
    • Hello Tinat,
      No, Extender Medium is rather smooth and we do not have any whites that have a coarse texture. The closest thing would be mixing French Ardoise Grey, which has very weak tinting strength, into white to create an off white color with a little grit. Or you could use a textured acrylic ground first to establish increased tooth, then paint on top of that with oils. Pastel Ground, Fiber Paste or Coarse Pumice Gel could be used for this purpose.
      Let us know if you have any questions about these products. You can email help@goldenpaints.com or call 800-959-6543.
      Thanks,
      Greg Watson

      Reply
  3. Hi Greg,

    Following up to a previous question using Alkyd resin as an underpainting, or as a first layer over Williamsburg lead white oil primed canvas. Can you suggest how I can use alkyd resin as an isolating varnish with charcoal and graphite underdrawing?

    I made a some test:
    1) alkyd resin + odorless mineral spirits (1:1)
    2) alkyd resin + stand oil + odorless mineral spirits (1:1:1)
    3) titanium white oil paint (Williamsburg) + alkyd resin + odorless mineral spirits (1:1:1)

    So far they all worked fine to isolate the underdrawing. The disadvantage is the drying time, which I would like to accelerate to one day, and reduce the glossy finish. I’m hesitant using dryers in the underpainting. Any suggestions or alternatives? How archival is this approach?

    Thanks,
    Paul

    Reply
    • Hello Paul,
      We have not tested using Alkyd Resin as an isolation coat over a ground or as an underpainting medium, so cannot comment on its longevity. Mixing it with paint and some thinner might be the best option of the three, as you would be building some body into the layer with the paint additions and making it very thin with the solvent. Adding stand oil at that stage might be a bit too “fat” and slow down drying, as the stand is fairly slow to dry.
      Alkyds all have driers to get then to set up so fast. Anything that dries to the touch overnight is going to be fairly maxed out with drier, at least as far as fine art materials are concerned. Not sure what you could do about the gloss. Most alkyds have a glossy finish. Adding more paint than medium and some thinner might help to knock it back a bit.
      Best wishes with your testing. Let us know how it goes!
      Greg

      Reply

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