Ready to use, water-based formula, acrylic primer . The primer is an acrylic primer that is intended to make easier the preparation and mounting of colors and glues. Indispensable on all non-porous materials is particularly suitable for wood and mdf. Shake well before use. Clean the surface and apply a coat of primer pad or brush. Once dry, it will be smooth and ready to be decorated and colorful. The brushes should be washed with soap and water.