Rub resistance largely determines the suitability of printed matter, folding cartons, brochures, newspaper wrappers for further processing, and mailing or other purposes. It is influenced by certain properties of inks, paper, paperboard, plastic foils, spray powders, and dampening liquids. Therefore, tests of rub resistance are vital to printers, converters, manufacturers of ink and substrates and, last but not least, endusers. The Quartant Abrasion Tester is a handy, reasonable priced and sturdy instrument for objective and reproducible test results under conditions, which simulate normal stress on printed products, and it is very simple to operate.