
Cotman Watercolour 21ml Tubes by Winsor & Newton are an excellent choice for artists who want more paint at great value. Designed for students, hobbyists and developing artists, these larger tubes provide an affordable way to build a full palette while ensuring you have enough colour for bigger washes and regular practice.
The Cotman range offers 48 colours, including 40 classic shades and 8 metallics for shimmering highlights and special effects. Each paint is formulated with carefully selected pigments to deliver consistent transparency, smooth washes and reliable lightfastness. Cotman watercolours are trusted worldwide in art schools and workshops for their balance of quality and affordability.
Why choose 21ml tubes? This larger format is perfect if you paint often, work on bigger surfaces, or use a lot of colour in your practice. The 21ml size offers better value compared with smaller tubes, making it economical for artists who go through paint quickly. The generous capacity also means fewer replacements, so you can concentrate on your work without running out of key colours.
Student quality with Winsor & Newton expertise Cotman paints are part of Winsor & Newton’s student-grade range. While costly pigments are substituted with modern alternatives, the paints remain vibrant and dependable. This makes Cotman 21ml tubes ideal for learning watercolour techniques and developing confidence, without the expense of professional-grade paints.
Cotman vs Professional Watercolours For maximum pigment load, permanence and the widest colour spectrum, the Winsor & Newton Professional Watercolours may be the preferred option. Cotman 21ml tubes, however, remain the most practical choice for students and regular painters who want excellent results at a lower price point.
Tips for getting started Choose a selection of essential colours in 21ml tubes if you paint frequently, and add metallic shades to create shimmering effects in your work. These larger tubes are particularly well suited to covering wide areas, repeated washes and long studio sessions. For the best results, use them with quality watercolour brushes and watercolour paper.
Shop all 48 Winsor & Newton Cotman Watercolour 21ml Tubes at Pullingers today – the economical choice for artists who want more paint, more colour and more value.