Young Blonde Girl Wet In The Bathtub With Acrylic Paints

Acrylic paints are the most common paints used in grattage. Grattage is a surrealist technique that became popular with the release of acrylic paint. Acrylics are used for this purpose because they easily scrape or peel from a surface.
Differences between acrylic and oil paint
The vehicle and binder of oil paints is linseed oil or another drying oil, whereas water serves as the vehicle for an emulsion (suspension) of acrylic polymer that is the binder in acrylic paint. Thus, oil paint is said to be "oil-based", while acrylic paint is "water-based" (or sometimes "water-borne").