Free UK Delivery Over £50
Worldwide Shipping
Currency: GBP

Winsor & Newton Galeria Fluid Retarder (250ml)


  • Designed for use with acrylic paints
  • Slows drying time
  • Allows for smoother blending of colour
  • 250ml pot
  • Flip-top lid

Was £13.35

Now £9.99
You save 25%
Add to wishlist
Earn 10 loyalty points/£0.10

More Information

Video: Winsor & Newton Galeria Mediums

Winsor & Newton Galeria is a collection of mediums designed to enhance the creations of artists working with acrylic paint, such as Winsor & Newton’s Galeria Acrylic Colour range. Extending the artist’s working time, by slowing the drying rate of the paint, Galeria Fluid Retarder allows smoother blending of acrylic colour.

What is a Medium?

Any liquid which changes the consistency of the paint it is mixed with may be classed as a medium. Winsor & Newton Galeria Acrylic Mediums are designed specifically for use with acrylic paints, and range from thin glaze to thick impasto mediums, with a variety of choices in between.

Why use a Medium?

By changing the properties of paint, a medium extends the possibilities of how an artist works with the colour, and affords a plethora of exciting techniques and effects. Winsor & Newton Mediums Finder provides an easy, interactive method of choosing the correct medium, for the artist to achieve the desired effect.

Why choose Winsor & Newton Galeria Fluid Retarder?

All Winsor & Newton Galeria Mediums are fully intermixable, and can be layered or mixed on the palette, allowing the artist to fully explore both the textural and visual properties of Acrylic Colour.

Only a few drops of Galeria Fluid Retarder needs to be added to acrylic colour, medium or gel to extend working time by up to 50%, and increase flexibility.

How do I use Winsor & Newton Galeria Fluid Retarder?

Fluid Retarder does not contain sufficient acrylic resin to act as a binder, and should only be used in the amount needed to achieve the desired effect. Adding more than 25% Fluid Retarder to colour will prevent the paint from drying.

This video shows a timeline of painting with Galeria Acrylic, using Galeria Fluid Retarder and Galeria Flow Improver:

Acrylic Painting Timeline

Can you explain some of the terms used when painting with Acrylic Mediums?

Click here for a glossary of Acrylic painting terms, including the different types of medium.

Who are Winsor & Newton?

In 1832, William Winsor and Henry Newton introduced the first moist water colours to the world. Today, Winsor and Newton remain the premier choice for artists, offering a wide variety of fine art supplies including: oil, water colour, acrylic and alkyd paints, pastels, artists' brushes, canvases, papers and portfolios.

Reviews (6)

Easy to find and came in no time at all
as described, does what it says on the label
Perfect for my use.
No real experience with retarders yet, but seems okay so far
See above
It wasn't exactly what I thought I was getting (my fault, not the company's) It does the job but it's very liquid! I thought it was more gel-like!