Watercolour Mediums

  • Description

Water Colour Mediums are used to change the rate of drying, increasing gloss, improve flow or provide texture. They provide water colourists with limitless opportunities to add special effects and add variations to their water colour paintings. In addition, a selection of these mediums are also suitable for use with Designers' Gouache

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Aquapasto (60ml Tube)

2 reviews

A transparent gel medium for reducing flow and giving an impasto effect to watercolour and gouache.


W & N Art Masking Fluid

31 reviews

A liquid with added pigmentation for masking areas of work needing protection.


from £4.54

Colourless Art Masking Fluid

A colourless, non-staining liquid composed of rubber latex for masking areas of work.


Gum Arabic (75ml)

9 reviews

A pale coloured solution that increases the gloss and transparency of water colour.



Watercolour Mediums (75ml)

28 reviews

Simply mix these unique mediums with your water colours for a whole range of exciting effects.

from £4.54

Ox Gall Liquid (75ml)

5 reviews

Wetting agent used to improve the acceptance of water colours on papers etc.



Daler Rowney Poster and Watercolour Varnish

Varnish watercolours and gouache paintings.


Schmincke Onetz Oxgall Medium

Onetz is a natural, thickened Oxgall wetting agent, designed to improve the flow of your watercolour or gouache colours. 

from £4.34

Daniel Smith Watercolour Ground

8 reviews

Now, with this exciting new ground, anything you’ve dreamed of painting with watercolor can become a reality. Just brush it on—and incredibly versatile.

from £8.99

Daniel Smith Watercolour Masking Fluid

22 reviews

Daniel Smith's Watercolour Masking Fluid is easy to use with the bottle applicator, the included 5, fine-point applicator tips or with an inexpensive brush.


Schmincke Universal Fixative Aerosol

Schmincke Universal Fixative is an Aerosol spray that can be used as an intermediate or final fixative for charcoal, pencil, pastels, watercolour and gouache.


Pebeo Masking Fluid (45ml)

24 reviews

A liquid with gray pigmentation for masking areas of work needing protection when colour is applied in broad washes.


Ken Bromley Art Supplies Blue Masking Fluid

48 reviews

For watercolours and inks.



49 reviews

This is the easy way to apply masking fluid. Bottle comes with 30ml.of top quality masking fluid.

from £3.20