This Student-Grade Acrylics are ideal for covering large surfaces and offer excellent value for money. Odour-free and easy to work with, they come in luscious colours and are most certainly the answer to every artist’s needs. Suitable for most surfaces including canvas, cardboard and wood, as well as primed metal. Ideal for mural painting, backgrounds or furniture, or for any student project. It is ultramarine blue in 250 ml. Tips: Brushes can be cleaned with soapy water after use. Drying time: about 15 minutes for a thin coat, and about three hours for a thick coat (of about ¾ in).