RGM Pigment Name - Raw Sienna is made of natural substance from earth to create a peculiar land colour and further enhanced by processing. 100% Pure Pigment; Offers maximum brilliance, color intensity, and coverage. Ideal in combination with the ready to use binders to produce individual artist’s colours i.e. oil, acrylic, watercolour, gouache and Lino print and can also be added to plaster for sculptures.