Fredrix Unprimed Cotton Canvas Rolls - At least 30% off - redrix Unprimed Cotton Canvas Roll (Style 548) is a very close constructed heavy 12oz. Canvas. This Fredrix Artist Canvas Roll is made from 100% unprimed cotton and is specifically woven to ridged specifications. Fredrix shops all over the world to find the finest artist grade cottons, linens and blends with which to make their high quality canvas rolls, all of which are woven to rigid specifications. How the paint reacts to the artist canvas surface is what really matters. 140 years of experience has given Fredrix the knowledge and tools to create superior canvas. Experience the Fredrix Difference!