Any Matte or Semi-Gloss medium or Gel Medium can impart a waxy look. The specific manner in which it is applied can also increase or decrease this effect. It can be helpful to test with several mediums or gels on sacrificial pieces until you get a feel for the mediums or gels and application techniques that will work best for you.
It is possible to get an “encaustic” look with the matte gels or mediums on their own, but mixing various ratios of matte gels and mediums with different amounts of paint can give a more enhanced look of actual beeswax.
This look can be achieved with a range of options from a very fluid medium like Fluid Matte Medium or Matte Medium, to a thicker consistency that can be brushed or tooled with a palette knife, such as Soft Gel (Matte or Semi-Gloss) or Regular or Heavy Gel (Matte or Semi-Gloss). If a very thick and pasty material is preferred, the Extra Heavy Gel (Matte or Semi-Gloss) or High Solid Gel (Matte) can be used.
Apply some with a palette knife or brush to a test surface and let it dry to see how it looks. Remember that when mixing with acrylic mediums, the milky, cloudy, or hazy look will change considerably when it dries, so the wet mixture color may appear as a pastel or tint, but will dry to a much darker value and higher chroma or intensity of color, along with more translucency.
To achieve a “beeswax” look, try blending in a percent or two of the Interference Gold (Fine) and Quinacridone / Nickel Azo Gold. Experiment with different ratios of these and other yellow or brown colors/pigments to get a variety of wax-like colors. Very small additions of color to a medium can be very effective and remember that the color will become darker and more saturated when the medium dries, due to the cloudy appearance of wet acrylic mediums that then become translucent or clear upon drying.
Formula #1 (Pourable) – 8 ounces of Soft Gel (Gloss) to 2 ounces Soft Gel (Matte) and add 6 ounces of water. Then add 16 drops of Fluid Interference Blue (Fine) to 4 drops Fluid Iridescent Gold (Fine).
Formula #2 (Pourable) – 8 ounces of Fluid Matte Medium to 4 drops of Fluid Iridescent Bright Gold (Fine).
Formula #3 – 8 ounces of Soft Gel (Matte) to 2 drops Fluid Naples Yellow Hue to 1 drop Fluid Quinacridone / Nickel Azo Gold to 2 drops of Fluid Interference Red (Fine).
Formula #4 – 8 ounces Soft Gel (Semi-Gloss) to 4 drops Fluid Interference Blue (Fine) to 1 drop Fluid Iridescent Gold (Fine).
Formula #5 – 8 ounces of High Solid Gel (Matte) to 1-3 drops of Fluid Quinacridone / Nickel Azo Gold to 6 drops of Fluid Interference Blue (Fine).
Some of these recipes come from Patti Brady’s NorthLight Book, “Rethinking Acrylic: Radical Solutions for Exploiting the World’s Most Versatile Medium”.
Thank you to Scott Bennett for the contribution and information for this article.
“Encaustic Effects with GOLDEN Acrylics” video: