Crown Matting Technologies Mat-A-Dor is one of our most durable heavy-traffic scraper mats. The mat is made up of an SBR Rubber that is naturally resistant to common acids, alkalis, and salt ––– reducing the degradation of the mat. The mat is so durable that it remains flexible even in cold temperatures or climates. Mat-A-Dor’s top surface is fingertips which form the scraping ability of the mat, in fact, it contains 50% more fingers than standard fingertip mats, increasing the efficiency of its scraping ability.