Rheotech Acrylics offer an excellent balance of quality and economy for beginners and students. 33 colours provide teachers and students with great tools for colour theory and mixing. Rheotech provides a consistant viscosity which can be manipulated to allow various effects from washes to impasto. This range works well on a variety of surfaces such as canvas, paper, wood, clay and plaster. Rheotech Acrylics are nontoxic with minimal scent, ideal for the classroom. Recommended thinning ratio with water: 1:1.