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OPEN Acrylic Gel (Gloss/Matte) are used to extend OPEN Slow-Drying Colors while maintaining their working properties. They can also be used to slow down fast-drying acrylic colors as a blending or glazing medium.  

OPEN Mediums help maximize working time of OPEN Acrylics and can be used to adjust color strength and translucency while maintaining consistency. OPEN Acrylic Medium (Gloss or Matte) will lower paint viscosity to create a more fluid mixture and increase flow. OPEN fluid mediums are also useful for lowering the viscosity of Heavy Body colors and slowing the drying for detail painting using fine brushes. 

OPEN Thinner is a water-based additive for thinning the consistency of OPEN Acrylic Colors and Mediums without altering drying time. It also maintains and adjusts the workability of OPEN colors on palettes, and can be used as a thin-bodied retarder with Heavy Body or Fluid Acrylic colors. 

Neither Retarder nor OPEN thinner contain binding agents. To ensure adhesion, it is recommended that the addition of Retarder not exceed 15% (1:6), and OPEN Thinner should not exceed 25% (1:3) when mixed with colors or mediums. 

Golden OPEN Gels and Mediums

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