Duragloss Nu-Glass is a blend of cleaners and selected abrasives formulated to remove water spots from glass surfaces. It removes these water spots from glass surfaces without scratching. You no longer have to fear scratching or dulling your glass by polishing it. Duragloss Nu-Glass can be applied by hand or with machine polisher. Duragloss Nu-Glass will not scratch, distort, haze, dull, or damage the glass.