Commodity
Index-linkedBulk Gypsum board follows a global index more than a boutique mill.
Gypsum board · CaSO4·2H2O panels that buy fire time by calcining — the everyday A2/A1 lining of interiors.
Darker cells mean a higher score for this topic on that metric.
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Declared reaction class in this atlas: A2-s1,d0 typical; core A1. Assemblies still need resistance tests.
Thermal mark 34/100 versus the atlas. Conductivity note: ~0.17 W/m·K.
~700–1000 kg/m³
Origin story: Sackett 1894; US Gypsum 1916 (United States).
Circularity mark 62/100 — editorial, route-specific.
calcines ~80–180 °C (dehydration)
heat 54 · fire 92
Prices are bands. A 2024 coil is not a 2026 contract. Labour and certification often dwarf the commodity.
Producers listed are landmarks for orientation, not a ranking or a procurement list.
Bulk Gypsum board follows a global index more than a boutique mill.
Tight chemistry, cleanliness or certification multiplies the unit price.
Boards, coats and labour dwarf kilogram prices.
Paperwork is the product.
Low-carbon or bio routes still trade on certificates.
Volume production and finishing.
Standards (EN, Euroclass) and specialty.
ASTM / NFPA language and large domestic mills.
High-spec sheet, fibres, electronics-adjacent ceramics.
Ore, plantations or energy that feed primary routes.
Gypsum board moves as coils, bales, boards or chemicals — check HS codes, not vibes.
North America and Europe.
UK boards.
US.
Europe.
Japan.
Korea.
Ask for the route (primary, scrap, bio) before believing a green label.
DuPont’s meta-aramid — fire-fighter turnout, electrical paper and a char that does not melt-drip like nylon.
Overall 65 🧯Paints that swell into insulating char — the thin-film way to give steel an R-rating without bulky boards.
Overall 58 🌡️Spun refractory fibres for 1000–1400 °C — kiln linings, gaskets, and a respirable-fibre caution that AES grades try to ease.
Overall 62