Accuracy and Practical applicability of methods for measuring thickness of fluid applied polyurethane membranes

Abstract

The most important quality among polyurethane membrane is coat thickness. Application work is subject to the influence of the environment at the time of construction, a worker's skill, a construction method, etc. However, The unevenness of polyurethane membranes thickness and the shortage of thickness may arise, and in order to check it, the film-thickness-measurement inspection is conducted. There are various methods in a film-thickness-measurement inspection, and there are merit and Demerit, respectively.There is little information about the accuracy of the measured value, and reliability, which method should be adopted or judgment is also difficult. This research checks the accuracy of the film-thickness-measurement method of polyurethane membranes, and examines the applicability.