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Why should acrylic generally not be applied over oil paint although oil paint may be applied over acrylic?

Answer and explanation

Correct answer: Acrylic adhesion may be weak on an oily and flexible surface

The governing concept is compatibility and adhesion between painting layers. Acrylic is a water-based polymer emulsion and needs a clean, stable, non-oily surface to bond properly. An oil layer can remain oily and may move differently as it ages, so acrylic placed on top may not adhere reliably. Thus option C is correct. The other choices describe no real property of either medium; the practical layer order is generally acrylic first and oil afterward.

Related tags

AcrylicOil PaintLayeringAdhesionAcrylic ColourPainting TechniquesArt EducationClass 9 Mcq

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