STRATEGY FOR COATING STRUCTURAL STEEL WITHOUT STRINGENT BLASTING REQUIREMENTS

This Innovations Deserving Exploratory Analysis (IDEA) project developed a method for applying protective paint coating on structural steel without the need for blast cleaning, which is undesirable in terms of costs, environmental contamination, and coating quality control when existing steel has lead-based paint present. The investigation involved three recent innovations: (1) surface tolerant, high penetration primers; (2) interlocking of primer and topcoat by embedding hollow glass fly-ash microspheres in the primer, which are then fractured to key-in the topcoat; and (3) use of advanced thermal spray and liquid applied zero volatile organic content (VOC) polymers to provide the primary environmental barrier. The results showed no significant advantage over current practice.

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  • Supplemental Notes:
    • This NCHRP-IDEA investigation was conducted by the Steel Structures Painting Council, Pittsburgh, Pennsylvania. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
  • Corporate Authors:

    Transportation Research Board

    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Authors:
    • Boocock, S K
    • Weaver, REF
    • Krepski, R P
  • Publication Date: 1995-10-16

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00727266
  • Record Type: Publication
  • Report/Paper Numbers: NCHRP-IDEA Project 007
  • Contract Numbers: NCHRP-93-ID007
  • Files: TRIS, TRB
  • Created Date: Oct 14 2001 12:00AM