Winsor & Newton Galeria Gloss Medium, 250 ml, Gloss Build, Adhesion Promoter, Give Glossy Texture, Removed Dullness - Transparent

It builds gloss and depth by adding a shiny, transparent layer over or mixed into your paint. The result is intensified color depth and a clear, glossy finish that remains flexible and doesn’t yellow over time.

For glazing or improving flow, start with a ratio of about 1 part medium to 1 part paint and adjust as needed. For a glaze with more translucency, increase the medium content. Mix thoroughly before brushing and apply in thin, even strokes for best results; allow layers to dry before adding more.

Yes. The gloss medium helps create smooth flow and even brush marks, while also enabling glazing to deepen color and unify sheen across areas with different levels of gloss.

It’s formulated for use with Winsor & Newton Galeria acrylics and many other acrylic systems. When mixing with unfamiliar mediums, test on a scrap area first to ensure compatibility and desired results.

Because it’s water-based, brushes can be cleaned with soap and water while the medium is still wet. If it has dried on brushes, you may need a mild brush soap and a gentle scrub to remove residue.

Touch-dry times can be within minutes to an hour depending on the layer thickness and environmental conditions. Fuller curing occurs over 24 hours. You can add additional layers once the previous layer is dry to the touch.

No. It dries clear and transparent, helping to preserve the underlying colors without leaving a milky residue.

It dries to a flexible, clear film and is designed to be compatible with acrylic painting practices, supporting durability and longevity when used as directed.

Keep the bottle tightly closed and store in a cool, dry place away from direct sunlight. Like most acrylic mediums, it remains usable for an extended period when stored properly; replace the cap firmly after use to prevent skinning.

For a direct comparison, you can check these similar options on Fepy.com: Winsor & Newton Galeria Gloss Medium 250ml (https://fepy.com/product/winsor-newton-galeria-gloss-medium-250ml) and Winsor & Newton Galeria Matte Medium 250ml (https://fepy.com/product/winsor-newton-galeria-matte-medium-250ml). Gloss medium provides a shiny finish and enhances light reflection, while matte medium yields a non-glossy surface; choosing between them depends on the desired final look and glazing needs.

Yes. The 250 ml size offers a practical balance of price and usage for glazing, layering, and keeping a consistent sheen across a painting. It’s typically more economical per milliliter than smaller bottles when you’re applying medium regularly.