Dip 'n etch is a re-usable liquid which forms a beautifully etched, fingerprint-proof, matte finish on any clear or colored glass (except Pyrex). After process is complete your new textured glass will hold oil, acrylic paints or inks. Etch-all is easy to use with an application time of only 15 minutes! Will etch glass, mirror, ceramic, porcelain, marble, or slate.