{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-13T22:52:40Z",
    "providers": [
      "Claude"
    ],
    "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify",
    "pass": 2,
    "wave": 4,
    "engine": "claude"
  },
  "metaModel": {
    "id": "THING-Q1570182",
    "registryId": "vr.tr.coating",
    "name": "coating",
    "version": "0.2.0-wave.4",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.OBJ"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q1570182/",
  "model": {
    "registry_id": "vr.tr.coating",
    "name": "coating",
    "purpose": "Let an agent explain coatings, relay types, application methods, functions and safety from materials science, industry and regulatory sources, describe the named coatings and flag misfiled aliases, and distinguish coatings from laminates, platings as a subtype, bulk surface treatments and protective clothing.",
    "definition": "A layer of material applied to the surface of an object, called the substrate, to protect, decorate or change its properties, including paints, varnishes, galvanising, powder coatings, fluororesin non-stick coatings such as PTFE, ink-receptive coatings on printing papers and films, food coatings such as batters, glazes and edible wax, and in lithography tusche, a greasy drawing ink; the registry aliases also include yeast bloom, a natural whitish layer of yeasts on fruit skins such as grapes, and shoe covers, protective overshoes, which are objects rather than coatings and appear misfiled. Some coating processes and materials involve solvents, isocyanates or PFAS concerns, regulated for worker and environmental safety.",
    "what_it_is_for": "Protecting, decorating or modifying surfaces.",
    "affordances": [
      "explain types and methods",
      "relay functions",
      "describe named coatings",
      "relay safety and regulation"
    ],
    "distinguishing_features": [
      "Surface layer",
      "Adhesion to substrate",
      "Functional or decorative",
      "Many application methods"
    ],
    "appearance": "Thin layers on surfaces: glossy paint, matte powder coat, non-stick pans, waxy fruit bloom.",
    "visual_identification": [
      "Surface layer applied to a substrate",
      "Shoe covers, food coating, ink receptive coating, fluororesin coating, tusche, yeast bloom",
      "Laminates bond sheets; plating is metallic coating by deposition; surface treatments alter the substrate itself; protective clothing is worn"
    ],
    "physical_properties": [
      {
        "quantity": "typical paint film thickness",
        "typical_range": "about 25-100",
        "unit": "micrometres",
        "note": "per coat, varies"
      },
      {
        "quantity": "PTFE discovered",
        "typical_range": "1938",
        "unit": "year",
        "note": "Roy Plunkett"
      },
      {
        "quantity": "EU PFAS restriction proposal",
        "typical_range": "2023",
        "unit": "year",
        "note": "check current status"
      }
    ],
    "families_and_kinds": [
      "paints and varnishes",
      "metallic coatings and galvanising",
      "powder coatings",
      "non-stick fluoropolymer coatings",
      "food and edible coatings",
      "printing and drawing coatings"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "layer",
        "why": "in registry terms, and material"
      },
      {
        "relation": "includes",
        "target": "paint",
        "why": ""
      },
      {
        "relation": "includes",
        "target": "polytetrafluoroethylene",
        "why": "as coating"
      },
      {
        "relation": "is contrasted with",
        "target": "shoe cover",
        "why": "misfiled alias"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "ISO 12944 corrosion protection by paint systems",
      "VOC emissions rules",
      "Food contact materials regulations",
      "PFAS restrictions"
    ],
    "failure_modes_and_hazards": [
      "Solvent and isocyanate exposure",
      "PFAS environmental persistence",
      "Misfiled object alias"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": []
  },
  "sources": [],
  "structure": {
    "bundles": [
      {
        "id": "understand",
        "name": "Understand",
        "description": "What a coating is.",
        "rationale": "Definition.",
        "layers": [
          {
            "id": "definition",
            "name": "Definition",
            "description": "Definition.",
            "findings": [
              {
                "id": "definition-finding",
                "name": "Definition",
                "description": "Definition.",
                "questions": [
                  {
                    "text": "What is a coating, and how does it differ from laminates, plating, surface treatments and protective clothing?",
                    "kind": "definition"
                  },
                  {
                    "text": "Has someone been overcome by fumes while spraying or coating, in which case get fresh air and call emergency services or a poison centre?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "named",
            "name": "Named coatings",
            "description": "Named coatings.",
            "findings": [
              {
                "id": "named-finding",
                "name": "Named coatings",
                "description": "Named coatings.",
                "questions": [
                  {
                    "text": "What are food, ink-receptive and fluororesin coatings, tusche and yeast bloom, and why are shoe covers different?",
                    "kind": "definition"
                  },
                  {
                    "text": "Which entry fits the specific coating?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "technology",
        "name": "Technology",
        "description": "Methods.",
        "rationale": "Science.",
        "layers": [
          {
            "id": "application",
            "name": "Application",
            "description": "Application methods.",
            "findings": [
              {
                "id": "application-finding",
                "name": "Application",
                "description": "Application.",
                "questions": [
                  {
                    "text": "How are spraying, dipping, electroplating and powder coating done?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which references are standard?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "adhesion",
            "name": "Adhesion",
            "description": "Adhesion and failure.",
            "findings": [
              {
                "id": "adhesion-finding",
                "name": "Adhesion",
                "description": "Adhesion.",
                "questions": [
                  {
                    "text": "Why do coatings fail by peeling, blistering or corrosion?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which sources are cited?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "safety",
        "name": "Safety",
        "description": "Health and environment.",
        "rationale": "Regulation.",
        "layers": [
          {
            "id": "workers",
            "name": "Workers",
            "description": "Worker safety.",
            "findings": [
              {
                "id": "workers-finding",
                "name": "Workers",
                "description": "Workers.",
                "questions": [
                  {
                    "text": "What protections apply to workers using solvent and isocyanate coatings?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits isocyanate?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "pfas",
            "name": "PFAS",
            "description": "PFAS debate.",
            "findings": [
              {
                "id": "pfas-finding",
                "name": "PFAS",
                "description": "PFAS.",
                "questions": [
                  {
                    "text": "What do regulators, industry and researchers say about fluoropolymer and PFAS coatings, with positions attributed?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Is the presentation neutral and current?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "context",
        "name": "Context",
        "description": "Food and art.",
        "rationale": "Context.",
        "layers": [
          {
            "id": "food",
            "name": "Food",
            "description": "Food coatings.",
            "findings": [
              {
                "id": "food-finding",
                "name": "Food",
                "description": "Food.",
                "questions": [
                  {
                    "text": "How are edible coatings and waxes used on fruit and confectionery?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits edible coating?",
                    "kind": "action"
                  }
                ]
              }
            ]
          },
          {
            "id": "lithography",
            "name": "Lithography",
            "description": "Tusche.",
            "findings": [
              {
                "id": "lithography-finding",
                "name": "Lithography",
                "description": "Lithography.",
                "questions": [
                  {
                    "text": "How is tusche used in lithographic printmaking?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which entry fits lithography?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "The registry alias shoe covers should be moved to protective clothing",
    "Should yeast bloom be moved to fruit microbiology entries?",
    "How should coating standards be linked?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}
