Winsor & Newton Dammar Varnish £6.99 Quantity: at £6.99 each Add To Basket A pale yellow varnish which dries to a high gloss for use on oil and alkyd paintings. It tends to darken with ageing and is removable with Distilled Turpentine. Quick drying. Do not use until painting is completely dry (6-12 months). Use in warm, dry conditions. Do not use as a medium.