PAINTABILITY OF GALVANIZED STEEL

THE EXCELLENT PAINT-HOLDING ABILITY OF GALVANIZED SHEETS FOR ALMOST ALL OF FORTY-SEVEN TRADE SALES PAINTS EXPOSED FOR A TWO-YEAR PERIOD WAS DESCRIBED EARLIER. APPROXIMATELY ONE- THIRD OF THE PAINTS TESTED WERE ZINC-DUST PAINTS /NOT ZINC- RICH/, ONE-THIRD CEMENT-BASE PAINTS, AND THE REMAINDER PROPRIETARY PAINTS INCLUDING SOME LATEX-BASE PAINTS. THE GALVANIZED STEELS, BOTH TREATED AND UNTREATED, WERE SUPPLIED BY THREE DIFFERENT PRODUCERS. THE PAINTED TEST PANELS HAVE NOW BEEN ON WEATHER EXPOSURE FOR FIVE YEARS. A DETAILED INSPECTION OF THE PANELS WAS MADE RECENTLY BY THE THREE STEEL PRODUCERS, PAINT EXPERTS, AND OTHER INTERESTED OBSERVERS. THE DATA OBTAINED ON THE PERFORMANCE OF THE PAINTS ARE PRESENTED IN DETAIL. OF FORTY-SEVEN PAINTS ORIGINALLY EXPOSED WITHOUT A TOP COAT, FORTY-THREE ARE STILL IN GOOD CONDITION, INCLUDING TWENTY-SIX IN EXCELLENT CONDITION. THE EXPOSURE TEST WILL CONTINUE TO DETERMINE THE MAXIMUM LIFE OF THESE PAINTS ON GALVANIZED STEEL SHEETS. /AUTHOR/ REFERENCES' PAINTABILITY OF GALVANIZED STEEL, METALLURGY OF STEEL, AM IRON AND STEEL INSTITUTE, 1963.

• Corporate Authors:

  American Iron and Steel Institute

  1101 17th Street, NW, Suite 1300
  Washington, DC  United States  20036-4700
• Publication Date: 1966-10

Subject/Index Terms

• TRT Terms: Crash exposure; Field tests; Galvanizing; Latex; Life span; Paint; Performance; Steel; Weathering; Zinc
• Uncontrolled Terms: Exposure
• Old TRIS Terms: Cement base paint
• Subject Areas: Geotechnology; Highways; Materials; Safety and Human Factors; Society;

Filing Info

• Accession Number: 00216099
• Record Type: Publication
• Report/Paper Numbers: 36 pp
• Files: TRIS
• Created Date: May 4 1994 12:00AM