CrockMaster

CrockMaster
Crockmeter, colour fastness to rubbing tester

James Heal's CrockMaster is a crockmeter instrument used to determine colour fastness to wet and dry rubbing. It tests textiles, carpets, laminates, and printing inks, as well as the micro-scratch resistance of lacquers, coatings and painted surfaces. It is available in motorised and hand-operated models.
Colour fastness to rubbing is the most basic of colour fastness tests, yet James Heal’s  Crockmaster is designed with exquisite attention to detail.
Quotation