Chapter 16. Conditions Required to Produce Spot Rusting and Effects of Spot Rust on Black Specks

  1. John B. Wachtman Jr
  1. Larry L. Steele

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314975.ch16

Proceedings of the 58th Porcelain Enamel Institute Technical Forum: Ceramic Engineering and Science Proceedings, Volume 17, Issue 5

Proceedings of the 58th Porcelain Enamel Institute Technical Forum: Ceramic Engineering and Science Proceedings, Volume 17, Issue 5

How to Cite

Steele, L. L. (1996) Conditions Required to Produce Spot Rusting and Effects of Spot Rust on Black Specks, in Proceedings of the 58th Porcelain Enamel Institute Technical Forum: Ceramic Engineering and Science Proceedings, Volume 17, Issue 5 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314975.ch16

Author Information

  1. AK Steel Corporation, Middletown, Ohio

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1996

ISBN Information

Print ISBN: 9780470375457

Online ISBN: 9780470314975

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Keywords:

  • black specks;
  • spot rusting;
  • dark spots;
  • enamel surface;
  • iron oxide

Summary

An experiment was conducted to determine the effects of spot rust on the production of two-coat/one-fire black specks. Factors contributing to the formation of rust spots are reported. Effects of some common surface contominants on the formation of black specks are discussed. Conditions for minimizing the formation of rust that contributed to the formation of base coat pull-through black specks are presented. Recommendations are made for cleaning system control parameters that will minimize base. coat pull-through black specks resulting from rust spots.