Each canvas frame is hand built and painted, using creative brushstroking, with 20 coats of acrylic lacquer, which seals and protects your work of art. This coating both adds dimension and provides ultimate protection against UV rays, fingerprints, flying food and much more – it is shockingly durable. If they get dirty, simply wipe them with Windex (or if you are green like me, your Norwex cloth!). Yes, Really!