THE DEVELOPMENT AND PERFORMANCE OF ABRASION RESISTANT COATINGS

With the development of high-performance anti-corrosive coatings, such as the coal tar epoxies, the major potential cause of corrosion on ships has become the removal of the coating by mechanical damage. The most frequent causes of this are berthing, fendering and cable chafing, as well as passing over sand bars, through ice, and the handling of cargo. The possible mechanisms by which a coating can then fail can be categorised as impact force, erosion, or cutting/gouging. Laboratory tests for the first two of these are described. While coatings containing a high level of an inhibitive pigment, such as zinc, can limit the effects of corrosion if the coating is damaged, an abrasion resistant coating that can resist mechanical damage is a preferred solution. Those now available fall into four main types: thin film solvented epoxy systems, solvent-free epoxy systems, glass-flake filled epoxies and polyesters, and elastomeric coatings. These are described and their properties are discussed. The most cost-effective solutions for the majority of shipboard applications are likely to be the solvented multi-coat epoxies, the other higher-cost coatings being used only under more severe conditions.

  • Supplemental Notes:
    • Shipcare, 15 <1983>, p. 12 <Nov.> (3 pp., 2 tab.)
  • Authors:
    • French, D K
  • Publication Date: 1983

Language

  • English

Subject/Index Terms

  • Subject Areas: Marine Transportation;

Filing Info

  • Accession Number: 00685566
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM