To modify various characteristics of acrylic colours


College® retarder

retards drying


Jelly-like additive which delays the drying of acrylic colours. Ideal for prolonged wet-on-wet painting. Adding around 20 % retarder to an acrylic colour extends the colour’s drying time by approx. 50 %. A maximum of 30 % retarder can be added. Not to be used pure!

Thinner: Water




    • College retarder is ready to use and should be mixed with acrylic colours on a separate palette in a ratio of max. 30 %.
    • The effect depends on the amount of added medium; adding around 20 % extends the colour’s drying time by approx. 50 %.
    • The product has no properties for film formation and therefore should not be use in pure form!
    • The product can be diluted with water.
    • Please clean tools as soon as possible with water or water and soap. Just dried acrylic colours can be removed with brush cleaner 50051 / 50052.
    • Please don´t use the product below temperatures under 10 °C object- and room-temperatures.
    • Close immediately after use.
    • Store in a cool and dry place.
    • Protect from frost.
    • Individual pre-tests are required.


    Sizes: 200 ml

    Contains:  additives, water.

    Signal word: -

    Hazard statements

    Safety precautions

    Other hazards
    May produce an allergic reaction.