All you need to know about varnishing paintings To ensure your finished oil or acrylic painting to stay looking its best then adding the right varnish in the right way will be a sound investment. Varnish protects the painting from dirt and dust and evens out the painting’s final appearance, making it all equally glossy or matt.
Using Liquin Mediums with oil colour This video demonstrates how to use the Winsor & Newton Liquin family of mediums. It compares them to traditional oil painting mediums and explains their individual properties. It also includes a step-by-step guide for how each medium affects the opacity, transparency, consistency and flow of oil colour.