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Coefficient of Friction (COF) is the rating given for the slip resistance of ceramic tile and other like surfaces.  It is a term used to describe the amount of force required to cause an object (shoe sole material) to start moving across a surface (flooring material).  It is important to provide this information to customers due to legal exposure a building owner has if tile with inadequate slip resistance is installed, particularly in a commercial environment.

North American is switching from Static COF with ASTM C1028 method to Dynamic COF with BOT 3000.  For more information on Dynamic COF and the reasons for the change, please download the below document.

Download Document Below