MarineLine® E-Newsletters

Profitable Tanker News about Marine Cargo Tank Coatings
Issue 19
2nd in a 2-Part Series on...
The Reason MarineLine® is Better is Because of a Better Chemical Structure

Coating ShipOne of the questions customers ask Advanced Polymer Coatings (APC) is “What makes the MarineLine® cargo tank coating better than other tank coatings?” This two-part series will answer that question. Read Issue 18, which is the first of this series.

APC’s Better Solution

The scientists at APC developed a way of cross-linking an organic polymer with an inorganic polymer with high multi-functional capability. The end result was a three-dimensional ladder-like structure where high cross-linking was achieved by the formation of Ether groups, C-O-C (carbon-oxygen-carbon), one of the strongest linkage bonds in chemistry. This technology eliminated high concentrations of hydroxyl groups (found in phenol epoxies) and precluded the formulation of ester groups which are subject to hydrolysis and acid attack.

Illustrating MarineLine® Higher Cross-Link Density
The greater the distance between the cross-links, the greater the permeation that leads to chemical attack and coating absorption. These illustrations represent the same size coating cutaway (left). The number of cross-links (depends on functionality), are shown per the same unit of volume. A much tighter screen is evident with MarineLine®.
Cross-links, the greater the permeation that leads to chemical attack and coating absorption

The company then conducted more than 5,000 chemical and physical tests of this unique polymer system, and patented this development.

The next step in coatings development was to formulate this unique polymer into various protective coatings, that when heat-cured, achieved extremely high cross-linking, with a tough, flexible and ultra-smooth surface that could effectively withstand a wide range of chemicals with virtually no absorption of the cargo. These coating were shown to resist 98% of all corrosive acids, alkalis, solvents, gases and materials at various temperatures.

This breakthrough led to the marketing development of the MarineLine® brand and other protective coatings from APC. Shipowners were quick to pick up on the key benefits such as being able to carry the widest range of different chemicals versus all other tank coatings, enhance their ability to clean tanks quickly and easily switch to other cargoes, and to provide their customers with an assurance of cargo purity. Today more than 600 vessels have been coated with MarineLine®.

Leading independent agencies were also engaged to test MarineLine® for carrying a wide range of aggressive cargoes. They reported positive findings showing the higher and better performance capabilities of MarineLine® when compared to other coatings and in some instances, performing better than Stainless Steel.

APC continually strives to enhance the performance of its coatings with new advancements in higher elongation, lower surface energy for faster cleaning, and more eco-friendly formulations.

MarineLine®’s higher cross-link density translates into:

  • Higher chemical resistance to acids, alkalis, and solvents
  • Higher temperature resistance
  • Higher resistance to absorption
  • Higher toughness

For more information on how MarineLine® coating can help your tanker operations, contact your MarineLine representative.