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Painting on Glass with GAC 200

15 thoughts on “Painting on Glass with GAC 200”

  1. Interesting.. Have you tested GAC 200 with water as an isolation coat for Rigid Surfaces to provide more scratch resistance?

    Reply
    • Hi Richard,
      Yes. We applied GAC 200 over paint that had been diluted with water as a topcoat. The layers were allowed to dry for about a week. It helped resist scratching when dry, but when we wet the surface and continued to scratch, the paint layer broke apart in less than a minute. So, it provided some durability, but was still vulnerable when it got wet.
      Hope this answers your question. Take care.
      Greg

      Reply
  2. Apologies Greg, I phrase my question really badly. I meant using GAC 200 with the addition of water (as you used to recommend with soft gel+water) for an isolation coat on rigid surfaces.

    Reply
    • OK thanks for the re-state Richard. It certainly is possible to use GAC 200 on its own as such. But as mentioned it does not level very well, so hard to get it to not leave brush strokes. And diluting beyond 50% seems to raise the possibility of getting some haziness in the film. But if you can get it on smooth with less water dilution, then it can provide a nice tack free surface. Also have to apply and let dry in a warmer environment! If you give it a try, let us know what you think.
      Be well!
      Greg

      Reply
      • Hello Greg,

        This topic is a bit on the older side, but I have a question regarding improving the ability (or lack of) GAC 200 to self level.

        Can you add a surfactant or something to reduce the surface tension (a wetting agent) to GAC 200 to help it self level? If that would work how, if at all, does it effect the surface sheen of the product?

        Just looking for something a with a little more surface hardness than GAC 500, with the same or better sheen, with similar or better leveling properties.

        Thanks…

        Regards,

        Jeff

        Reply
  3. Have you investigated the possibility of creating a line of colors that incorporate the properties of acrylic enamels for increased durability? Liquitex has an additive that when placed in the oven becomes dishwasher-safe on glass. Are you familiar with that additive? Would you consider developing that type of product–or is it too specialized for Golden to investigate?

    Reply
    • No, we are willing to make specialized products. We are always open to new ideas if we think there is a need. We appreciate the comment and suggestion.
      Take care,
      Greg

      Reply
  4. Hi Greg, nice work. Many brands of paint specifically for glass recommend baking to increase permanence. Would that benefit Golden’s acrylics with GAC 200 as well?
    Thanks,
    Andrew Lenz
    Lenz Arts
    Santa Cruz, CA

    Reply
    • Hi Andrew,
      sorry for the tardy reply. While heat is not necessary to cure GAC 200, it may speed the process some. We do not recommend baking our products in the oven, but a nice warm environment or a good session with a blow drier might help drive off moisture. This could lead to a tougher film faster than with ambient drying.
      Thanks!
      Greg

      Reply
  5. Hello,

    I read always with a lot of pleasure your Emails, and I appreciate so much your advices.
    Please, don’t forget to send me them !!
    Congratulations

    Reply
    • Hi Pam.
      I just tried to download this specific article about GAC 200 and it worked fine. I assume you are clicking on the PDF icon to download?
      – GOLDEN

      Reply
  6. Greg this is Cece Denegre. Friend of Linda and Bill in Philly. I need help with a gamblin product. Can you give me a call? 267-255-6607.

    Reply
  7. Could GAC 400 or GAC 500 be used in lieu of GAC 200? I’m trying to avoid adding another GAC polymer to the 5 I regularly stock (。^‿^。). In previous glass painting projects using glass-specific paints, I always baked the final product at 325°F. Has Golden tried that and is that safe for Golden acrylics? The glass paints are beautiful but limit you to very translucent finishes, like stained glass, and I want to have more options in color and opacity.

    Reply
    • Hello Xixi
      Neither of these product will be as effective as the GAC 200 for painting on glass. The hardness of the medium is a key feature with this application, and GAC 200 is our hardest acrylic. While a warm, dry environment can help to cure GAC200 with acrylic color on glass, we do not recommend baking any of our products.
      Best wishes!
      Greg

      Reply

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