{
  "version": "2026-08-29",
  "checked_date": "2026-08-29",
  "scope": "Declared material thermal resistance comparison at a user-entered mean temperature. This is not a complete insulation-system design or measured head-to-head test.",
  "products": {
    "pyrogel_xte": {
      "name": "Aspen Pyrogel XTE",
      "family": "Aerogel blanket",
      "conductivity_standard": "ASTM C177 at 2 psi compressive load",
      "conductivity_rows": [
        [
          0,
          0.02
        ],
        [
          100,
          0.023
        ],
        [
          200,
          0.028
        ],
        [
          300,
          0.035
        ],
        [
          400,
          0.046
        ],
        [
          500,
          0.064
        ],
        [
          600,
          0.089
        ]
      ],
      "declared_thickness_mm": [
        5,
        10
      ],
      "maximum_use_temperature_c": 650,
      "source": "pyrogel_tds"
    },
    "prorox_wm_960_uk": {
      "name": "ROCKWOOL ProRox WM 960 UK",
      "family": "Stone-wool wired mat",
      "conductivity_standard": "EN 12667",
      "conductivity_rows": [
        [
          50,
          0.04
        ],
        [
          100,
          0.046
        ],
        [
          150,
          0.054
        ],
        [
          200,
          0.063
        ],
        [
          250,
          0.073
        ],
        [
          300,
          0.084
        ],
        [
          350,
          0.098
        ],
        [
          400,
          0.11
        ],
        [
          500,
          0.145
        ],
        [
          600,
          0.18
        ],
        [
          640,
          0.191
        ]
      ],
      "nominal_density_kg_m3": 100,
      "maximum_use_temperature_c": 640,
      "source": "prorox_tds"
    }
  },
  "sources": {
    "pyrogel_tds": {
      "title": "Pyrogel XTE Product Data Sheet, Rev 4.2",
      "publisher": "Aspen Aerogels",
      "url": "https://www.aerogel.com/wp-content/uploads/2021/06/Pyrogel-XTE-Datasheet-English-v4.2.pdf",
      "document_date": "2023",
      "sha256": "8d7bcd3632c7bd2b1a5d418e15659cb53402fdae87580aa2a8ade66adc49e71d",
      "reviewed_scope": "Declared conductivity table, nominal thicknesses and maximum use temperature."
    },
    "prorox_tds": {
      "title": "ProRox WM 960 UK Product Data Sheet, PEN-03-2-003",
      "publisher": "ROCKWOOL Technical Insulation",
      "url": "https://app.papirfly.com/original/gallery/39052/files/original/469a98eb-a0e6-489c-b1ad-49c70a71f386.pdf",
      "document_date": "2026-02-01",
      "sha256": "eb6fd159b486abb1d3df456c09719f999e70600d4931089d7e8b85a60b871fc7",
      "reviewed_scope": "Declared conductivity table, nominal density and maximum service temperature."
    },
    "prorox_product": {
      "title": "ProRox WM 960 UK product page",
      "publisher": "ROCKWOOL Technical Insulation",
      "url": "https://rti.rockwool.com/en/products/prorox-wm-960-uk/",
      "document_date": "accessed 2026-08-29",
      "reviewed_scope": "Product identity and intended industrial application."
    }
  }
}