SURFACE PROFILE GUAGE
Steel is often abrasive blast cleaned or otherwise roughened prior to painting. The peak-to-valley height of the resultant surface profile is an important factor in the performance of applied protective coatings. Low profile may reduce coating bond strength (adhesion). Too high and the peaks may receive insufficient coverage and possibly rust prematurely. The costly application of more coating may be required if the profile is too high. For these reasons, surface profile should be measured prior to coating application to ensure that it meets contract specifications.
Surface Profile Gages use a digital depth micrometer to measure and record peak to valley surface profile heights in preparation for the application of coatings
Digital spring micrometers measure and record surface profile parameters using Testex Press-O-Film™ replica tape—producing a more accurate peak-to-valley height measurement.