PHENOMENA ASSOCIATED WITH METAL-PAINT COATING INTERFACES

As a result of observations made during studies of ships bottom paints, several hypotheses are suggested to explain phenomena observed. One of these is the concept of a concentration of water at the steel/coating interface; this has been called the water rich layer. It is suggested that this layer adversely affects the adhesion of the coatings and provides a relatively conductive path for ionic current between anodic and cathodic areas. This concept is also applied to the explanation of the corrosion of coated steel exposed to atmosphere. Hypotheses are presented to explain the inhibitive effect of aluminium and some other metallic pigments on the adhesion-destroying reactions which affect some coatings on steel protected cathodically in sea water. ( Author )

• Supplemental Notes:
  • Pub in Jnl of the Oil and Colour Chemists Association, v53, n3, p181-191, Mar 1970. No copies furnished.
• Corporate Authors:

  Defence Research Establishment, Pacific Victoria

  Victoria, BC  Canada 
• Authors:
  • Anderton, W A
• Publication Date: 1969-9-4

Media Info

• Pagination: 13 p.

Subject/Index Terms

• TRT Terms: Adhesion; Coatings; Corrosion; Corrosion protection; Steel; Underwater paint
• Old TRIS Terms: Coating adhesion; Steel corrosion
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00007544
• Record Type: Publication
• Source Agency: National Technical Information Service
• Files: TRIS
• Created Date: Dec 22 1973 12:00AM