Weld-Through Preconstruction Primer (Specialty Coating)

{
  "id": "MLC-T-ENV-030275",
  "term": "Weld-Through Preconstruction Primer (Specialty Coating)",
  "field": "Environment",
  "definition": "Coating that provides corrosion protection for steel during inventory, is typically applied at less than 1 mil dry film thickness, does not require removal prior to welding, is temperature resistant (burn back from a weld is less than 1.25 centimeters [0.5 inch]), and does not normally require removal before applying film-building coatings, including inorganic zinc high-build coatings. When constructing new vessels, there may be a need to remove areas of weld-through preconstruction primer due to surface damage or contamination prior to application of film-building coatings.",
  "references": [
    "40 CFR 63.782 (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/weld-through-preconstruction-primer-specialty-coating/"
}