Gypsum board in 3700: Gypsum plaster
Read the condition on Gypsum board before the nickname. Year 3700, line “Gypsum plaster,” figure 0. Seven chapters follow. Fire and insulation claims name test families (Euroclass, ASTM E84, ISO 5660, KS F) rather than inventing a single safety number.
Conductivity note: ~0.17 W/m·K. Insulation score 34/100 is relative to 32 entries — metals lose, VIPs and aerogels win. Fire letter in editorial use: A2-s1,d0 typical; core A1. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide. Origin: Sackett 1894; US Gypsum 1916, United States. The process chapter follows feedstock → conversion → forming → finish → install.
Uses span buildings to defence / safety. Pairings matter: mineral-wool. Circularity mark 62/100. Ask which scrap, which certificate, which year. Related atlas entries, a short glossary, and three threads that keep Gypsum board honest. Timber frames that need this lining. EN 13501-1 reaction-to-fire letter (A1–F), not a wall rating.
Thermal conductivity in W/m·K. Lower means better bulk insulation. Declared performance after blowing-agent or moisture drift. The zone where heat or chemistry changes the datasheet. A named chemistry/process variant, not a brand slogan. Boards + cavity + fasteners + coatings tested together.
The label keeps Gypsum board, 3700, and 0. “Gypsum plaster” is the condition on the figure.3700
Figures to keep
- Year of the condition
- 3700
- Property figure
- 0
- Material
- Gypsum board
- Use line
- Gypsum plaster
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