Excellent for repair of equipment exposed to high humidity as well as "under water" surfaces. The UW Coating combined with interchanging layers of Wencon reinforcement tape is ideal for repair of ballast water and cooling water pipes as well. Wencon UW Putty and UW Cream for rebuilding of damaged and corroded surfaces such as, hulls and any "under water" parts of the vessel and structures, tanks, pipes, flanges, etc. Wencon UW Putty is also excellent for filling of gaps and holes under water or on wet surfaces