ROSA Studio acrylic sizing is intended to apply before priming the bases for painting: canvases, wood and stone. It fills the gaps between fibers of the fabric, penetrates the upper layers of the base, binds them, and prevents the gesso from seeping through to the backside.After drying, the sizing forms a strong, transparent, elastic layer that does not yellow and does not crack over time, and does not dissolve with water. It has excellent adhesion with acrylic primer, due to the same nature of the origin of the components.