Left unchecked, the surface contamination can corrode into deep pockets in the substrate, making decontamination more important and challenging. Protective coating failures are costly due to repair and lost productivity, and can be hazardous. Removing soluble salts from surfaces prior to applying a protective coating is obviously desirable and important. Then protective coatings can be applied. Abrasive blasting often requires repeated blasting.
Some abrasives contain salts and actually deposit trace amounts of soluble salts on surfaces.
Some methods leave residue that interfere with the adhesion of the protective coating, thus contributing to coating failure. Performance is enhanced by using heated water, but is not necessary for the solution to be effective. Increased dilution has proven effective in both laboratory tests and field applications. Inc. All Rights Reserved.