Liquitex Gloss Gel 237ml (8 oz). Liquitex Gloss Gel Medium dries to a gloss finish. It has a viscosity and body similar to Heavy Body Artist Color. Transparency varies from Clear to translucent when dry, depending on the thickness applied. Thicker applications will result in a less transparent film when dry. Liquitex Gloss Gel Medium is an Ideal medium to mix with Heavy Body Acrylic Color to extend paint, increase the brilliance and transparency of color, without changing the thickness of the paint. Mix with Heavy Body Artist Color to obtain paint similar in color depth to oil paint.