Abstract: An apparatus for measuring the coefficient of friction between a strip of paper and a surface finishable by flame spraying, comprising a weight pressing on an interface between the paper and the flame sprayed workpiece, a force measuring means attached to the paper, and a constant speed motor that moves the paper past the interface point. The weight with mass exerts a known force upon the surfaces. The force measuring means is attached to the paper between the interface and the motor. The paper attached to the force measuring means is drawn past the interface by the motor at constant speed as the force measuring means measures the force. The measurement allows such surfaces to be compared and evaluated.