This Winsor & Newton Iridescent Medium will add a stylish pearlescent or glitter effect to your watercolours. It works well when combined with transparent colours or used on darker backgrounds.

- This medium is water-based.
- It can be mixed with watercolours to give them a glittery or pearlescent effect.
- It works best when used with transparent colours or used on dark backgrounds.
- There is 75 mL of medium in this bottle.
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