With regard to shop primers for marine coating, an inorganic zinc-rich primer is far better in quality for rust prevention and weldability than the conventional vinyl butyral primer or organic zinc-rich primer. However, for the inorganic zinc-rich primers presently in use, high-grade surface preparation is necessary requiring extra work. In this study, with a view to decreasing the surface preparation procedure for the inorganic zinc-rich primers that have been in use, from fourteen different kinds of domestic and foreign brands five noted for a lower grade of surface preparation were selected. Various experiments were carried out. The following are the results of these tests. (1) Shot-blasting is sufficient for the primary surface preparation. As for characteristics of the coating film, it doesn't matter if the preparation grade is about ASA 2.0 of SIS standards. For the secondary surface preparation, slight treatment by a disc sander is good enough. (2) Characteristics concerning spray painting, rust preventing, electro-photo marking, weldability, heat-resistance, successive coating, etc. can stand comparison with those of the conventional inorganic zinc-rich primers applied on a high-grade prepared surface.

  • Supplemental Notes:
    • Full translation available on application to Mitubishi Heavy Industry. Translation fee paid by applicant.
  • Corporate Authors:

    Mitsubishi Heavy Industries Limited

    5-1 Marunouchi, 2-chome, Chiyoda-Ku
    Tokyo 100,   Japan 
  • Publication Date: 0


  • Japanese

Media Info

  • Pagination: 11 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00057187
  • Record Type: Publication
  • Source Agency: Mitsubishi Heavy Industries Limited
  • Files: TRIS
  • Created Date: Jul 31 1974 12:00AM