Olmec balls
Latex mixed with morning-glory juices.
Natural rubber · Cis-1,4-polyisoprene from Hevea — tyres still drink most of the world’s latex.
Milestones in order. This is history, not a weekly activity grid.
Darker cells mean a higher score for this topic on that metric.
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Declared reaction class in this atlas: combustible; tyres are a fire load. Assemblies still need resistance tests.
Thermal mark 38/100 versus the atlas. Conductivity note: ~0.15 W/m·K.
~0.92 g/cm³
Origin story: Mesoamerican use / Goodyear 1839 / Wickham 1876 (Amazonia → Malaysia).
Circularity mark 46/100 — editorial, route-specific.
elastomer; decomposes on heat
heat 40 · fire 18
Natural rubber did not arrive as a finished commodity. Mesoamerican use / Goodyear 1839 / Wickham 1876 around Amazonia → Malaysia still explains who makes it and which tests it sits in.
Ten dated points, five eras and three milestones below are the spine — not a complete industrial history.
Latex mixed with morning-glory juices.
European scientific samples from Amazonia.
Sulfur heat made a stable elastomer.
British parallel to Goodyear.
Hevea smuggled to Kew then Ceylon and Malaya — colonial plantation age.
Bicycles then cars.
Failed industrial jungle; Asia kept the trees.
Synthetic styrene-butadiene when Asia was cut off.
NR latex protein allergy became a clinical topic.
Due-diligence rules hit Hevea maps.
Latex mixed with morning-glory juices.
Sulfur heat made a stable elastomer.
Hevea smuggled to Kew then Ceylon and Malaya — colonial plantation age.
Failed industrial jungle; Asia kept the trees.
NR latex protein allergy became a clinical topic.
British parallel to Goodyear.
Failed industrial jungle; Asia kept the trees.
Due-diligence rules hit Hevea maps.
Knowing this timeline is how to read a mill certificate without treating Natural rubber as timeless.
The world’s volume plastic — bags, bottles, pipes and the UHMWPE cousin in medical and ballistic fibre.
Overall 40 🍳Plunkett’s slippery fluoropolymer — non-stick, chemical linings and a high-temp plastic that still has a fire-and-fume story.
Overall 41 🫧Si–O backbone elastomers and resins — bakeware, medical tubing, façade sealants and a kinder high-temp story than carbon chains.
Overall 55