The service life performance of four marine coatings exposed to sea water, fresh water and sanitary waste was obtained by field inspection techniques. The coatings evaluated were coal tar epoxy, polyamide epoxy, inorganic zinc, and zinc-dust paint, used to protect the surface of steel tanks in ships. The performance of the coating was characterised by a coating film integrity index (CI) and a substrate condition index (SI). The CI and SI values were used to characterise coating performance as a function of service years. A method of predicting the performance of each coating system by computing a 95% Lower Confidence Limit for the CI and SI values is described and illustrated graphically. The 95% Lower Confidence Limit can be used in conjuction with some maintenance or damage criteria values for CI and SI to give an indication of how long a particular coating will provide the necessary protection.

  • Corporate Authors:

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  United States  07306-2907
  • Authors:
    • Matanzo, F
  • Publication Date: 1979

Media Info

  • Pagination: 27 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00303872
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Feb 27 1980 12:00AM