Varnishes consist of a mixture of various resins, from synthetic resins such as acrylic to natural resins such as pine resin. They also sometimes include shellac and polyurethane. Depending on the resin mixture, varnishes possess a wide range of properties. However, most varnishes feature water-, UV-, and abrasion-resistance. Since varnishes come as various resin blends, they come in clear as well as tinted solutions. They also create thicker coats, adding more layers of protection against wear and tear.