Technology Demonstration of Self-Healing Coatings for In-Place Management of Lead-Based Paint Hazards

Abstract

Microcapsules on the order of 50-150 microns in size have been developed that can contain and release a small quantity of self-repairing compound in liquid form when they are broken. These microcapsules are mixed in commercially available latex paints and used to overcoat lead-based paint. Should the overcoating become damaged, the microcapsules break open and release liquid coating repair and lead dust suppression compounds. In effect, the coating becomes self-healing when damaged. The self-healing coatings were tested in the laboratory and demonstrated on a wooden building at the former Fort Ord, CA. In both cases, when the self-healing coatings were applied to lead based paint, cut, and wipe tested, significant reductions in lead dust were realized compared with the results of applying the same test procedure to plain latex paint overcoatings.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2003
Accession Number
ADA431145

Entities

People

  • Ashok Kumar
  • Larry David Stephenson

Organizations

  • Engineer Research and Development Center

Tags

DTIC Thesaurus Topics

  • Buildings And Structures
  • Calcium Hydroxide
  • Coatings
  • Construction
  • Control Surfaces
  • Cost Analysis
  • Costs
  • Demonstrations
  • Electronic Mail
  • Engineering
  • Environmental Protection
  • Materials
  • Microcapsules
  • Monitoring
  • Technology Transfer
  • Test Facilities
  • Test Methods

Readers

  • Surface Coatings Technology.