Grape Jelly is a heavily pigmented, viscous Stroke & Coat¨glaze that can be used for brush strokes or opaque coverage. One coat will create a translucent finish with subsequent coats adding opacity. We suggest two to three coats for full opacity and all over coverage. Will fire to a gloss finish without clear glaze.Cone 6 oxidation (smaller image): Semi-Transparent. Color Turns dark blue.