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Jo Sonja's Retarder Gel Medium is an additive used to extend the "open" or drying time of Jo Sonja's Colours and Mediums
not a finishing varnish
The glow steadily diminishes as the stored light energy is released
Designed to work with acrylic paints
Coverage: 15 to 20 sq ft
Gamblin Solvent-Free Gel Medium 150ml Golden Grounds Blog Jo Sonja's Retarder Gel MediumWhat is Solvent Free Gel Medium? Gamblin Solvent Free Gel Medium is an alkyd based medium made with safflower oil and alkyd resin, designed to increase flow, transparency, and gloss in oil colours while maintaining the shape and texture of your brushstrokes. Unlike other alkyd gels, it contains no Gamsol, making it a solvent free option for cleaner, safer painting. Why Artists Use Solvent Free Gel Improves paint flow and transparency without thinning
