The face of the sheets are coated and sealed with a superior quality Readi-coate primer so you need only apply your selected paint top coats. The primer is an environmentally friendly waterborne thermoset primer containing no toxic constituents. As it is a thermoset primer it has excellent chemical and abrasion resistance qualities and is overcoatable with a large variety of topcoats including those containing solvents. The primer is mechanically applied by laying the paint over the surface of the sheet leaving an exceptionally even and uniform thickness of primer over the entire surface. This allows a great paint finish to any paint job.