Winsor and Newton Cotman Watercolor Brushes - at least 40% off - Winsor and Newton Cotman brushes are a range of pure synthetic water colour brushes of the highest quality that have been created using the same skills, generated over many years, as those used in making the finest sable brushes. For over 150 years our brush makers have applied their knowledge to produce brushes of the highest standard. As new materials have become available we have used our experience to produce new ranges of brushes, each with their own benefits. Cotman brushes were the first complete range of synthetic brushes to be developed by Winsor & Newton. The secret of the Cotman brush lies in the fibres. By blending fibres of differing thickness we achieve the three most important qualities sought after by the artist. The thicker fibres contribute strength and spring whilst the thinner fibres improve colour carrying capacity, which have recently been improved by 50%. Together they retain a perfect point, time after time.