VINYL COATINGS FOR MISSISSIPPI RIVER LOCKS AND DAMS

AN IMMERSION SECTION OF THE MISSISSIPPI RIVER DAM PAINTED WITH A VINYL SYSTEM CONTAINING AN ABRASION RESISTANT SILICON CARBIDE ADDITIVE WAS OBSERVED TO BE IN GOOD CONDITION AFTER 15 YEARS. VINYL ALUMINUM TOP COATS WERE USED ON THE UPPER PART OF THE TAINTER GATES. AFTER 20 YEARS, THESE ABOVE-WATER SECTIONS WERE IN EXCELLENT CONDITION. EXAMINATION OF A DAM APPLIED WITH A VINYL SYSTEM OF WASH PRIMER, VINYL RED LEAD AND VINYL ALUMINUM TOPCOAT, SHOWED ONLY MINOR WATERLINE DISTRESS FROM ABRASION AFTER 9 YEARS. AN ABRASION AND CORROSION RESISTANT VINYL PAINT SYSTEM WHICH CONSISTS OF ZINC RICH VINYL PAINT PRIMER, AND RED OXIDE VINYL TOPCOATS WHICH CONTAIN SILICON CARBIDE GRIT ARE DESCRIBED. THIS SYSTEM, APPLIED TO THE BOTTOM 6 FT OF A TAINTER GATE EXPOSED TO TURBULENT WATER, DEBRIS AND ICE, WAS IN EXCELLENT CONDITION AFTER 6 YEARS OF SERVICE. VINYLS CAN BE APPLIED IN COLD WEATHER. THIS ALLOWS PAINTING IN WINTER WHEN THE RIVER IS CLOSED. THE VINYL SYSTEMS USED ON THE MISSISSIPPI GATES HAVE A FILM THICKNESS OF 6 TO 8 MILS APPLIED IN 4 TO 5 COATS. FEWER COATS WILL BE NEEDED WITH THE NEW HIGH BUILD VINYL PAINTS CONTAINING GLASS FLAKES AND A SILANE.

• Authors:
  • Stevens, J J
  • Berger, D M
• Publication Date: 1974-3

Media Info

• Features: Figures; References;
• Pagination: p. 18-21
• Serial:
  • Materials Protection and Performance
  • Volume: 13
  • Issue Number: 3
  • Publisher: National Association of Corrosion Engineers

Subject/Index Terms

• TRT Terms: Abrasion resistant coatings; Coatings; Cold weather; Dams; Locks (Waterways); Operations; Paint; Polymers; Polyvinyl chloride; Protective coatings; Rivers; Silicon compounds; Zinc
• Subject Areas: Administration and Management; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00217391
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 27 1974 12:00AM