Dust & Salt Contamination Testing

Surface contamination from soluble salts and residual blast media are major factors affecting the long-term performance of coatings on steel surfaces. Before the application of protective coatings, substrates must be thoroughly inspected for the presence of surface contaminants such as soluble salts, dust, oil, and grease.

​

Soluble salts are not visible to the naked eye and if allowed to remain on the substrate in sufficient quantities, can draw moisture through the coating causing premature coating failure from osmotic blistering or disbondment. If not identified and remediated, excessive dust particles can also reduce the adhesion of applied coatings, leading to coating failure.