QUALITY: Water based Gutta, pearly and opaque is used to draw outlines in silk painting. MIXABILITY OF COLOURS: No.DRYING: Air dry in 30 minutes. SURFACES: All kinds of silk. DILUTION: Useless. Opacity: Opaque. Finish: Pearly. FIXING: 3-4 minutes on the back side of the fabric with a hot iron. CARE (Surfaces decorated) : 48 hours after fixing, the gutta is resistant to hand washing with water and dry cleaning. Water-based Gutta:Water-based Guttas have a thick consistency and are ideal for drawing outlines. Pearlescent, they can be applied directly from the nozzle tube. They penetrate perfectly through the fibres of the fabric, thus creating a barrier to the Setasilk colours which are applied afterwards. Once they are set with an iron, these Guttas are wash resistant.