01 Feedstock
Ore, monomer, fibre, mineral or scrap that can legally become Naturkautschuk.
Naturkautschuk · Cis-1,4-Polyisopren aus Hevea — Reifen trinken den Großteil des Latex.
Making Naturkautschuk is a chain: feedstock, conversion (Mesoamerican use / Goodyear 1839 / Wickham 1876), forming, heat, finish, install.
Skip a step and the properties chapter is describing a different object.
Ore, monomer, fibre, mineral or scrap that can legally become Naturkautschuk.
Mesoamerican use / Goodyear 1839 / Wickham 1876
Cast, spin, weave, sinter, foam, laminate or coat — the step that sets anisotropy.
Temper, vulcanise, calcine or dry: skip it and the datasheet is fiction.
Coatings, sizings, facers, galvanizing, anodising, painting.
Fasteners, adhesives, DFT, compression, dryness — site quality is a material property.
Virgin route around Amazonia → Malaysia.
Recycling exists but quality or energy often disappoints.
High-spec grades leave the commodity mill.
Coatings, sprays, casts — the factory is sometimes a jobsite.
Feedstock to installed product.
Energy in, class out.
Melting/softening elastomer; decomposes on heat; conductivity ~0.15 W/m·K.
Moisture, UV, chlorides, alkalis or oxygen — pick the one that actually kills Naturkautschuk.
Fire class combustible; tyres are a fire load is a starting letter, not a wall rating.
Process energy and scrap quality belong in the carbon passport, not in a footnote.