Golden Open Acrylic Thinner is a water-based additive designed to thin the consistency of Golden Open Acrylics, without altering the drying time, as well as maintain & adjust the workability of colours on the palette. Open Thinner can also be used as a thin-bodied slow drying solution when using other forms of acrylic colour such as Heavy body, Fluid or Inks. Available in 30ml & 119ml