TEST RESULTS OF HEAVY DUTY COATING SYSTEMS FOR 20 YEARS AT THE MARINE EXPOSURE PLACE INSIDE THE SURUGA BAY

Abstract

This report is the marine atmospheric exposure test result of various coating systems for 20 years at the marine exposure place inside the SURUGA BAY. This place is one of the international joint atmospheric exposure test grounds adopted in ISO/TC156. It has been proved that the heavy duty coating system which used fluoro resin paint as a top coat and high build type zinc rich paint as a primer has good corrosion protection and good weather resistance from the exposure result for 20 years. However, there were some parts which were generating rust in the edge also by this coating system. It has been recognized that protection processing of edge part is important.