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Which material can be used to keep acrylic colour wet for a longer time?

Answer and explanation

Correct answer: Retarder medium

A retarder medium is formulated to slow the evaporation and drying process of acrylic paint. When used in a suitable, limited amount, it keeps the paint workable for a longer period, giving the artist more time for blending and controlled transitions. Option C is therefore correct. Sand and chalk powder are solid additives rather than drying-control media, while mustard oil is not the appropriate medium for acrylic paint and can interfere with adhesion and film formation.

Related tags

RetarderAcrylic-MediumDrying-TimePainting-TechniquesAcrylic ColourPainting TechniquesArt EducationClass 9 Mcq

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