the.com/retardant
the substance that argues with fire and usually wins the slow argument.
means A substance applied to a material to slow, delay, or prevent something — most often the spread of fire.
from From Latin 'retardare,' to delay or hinder, built from 're-' (back) plus 'tardus' (slow) — the same 'tardus' that gives us 'tardy.' The '-ant' ending marks it as the thing doing the slowing, so a retardant is literally 'that which makes slow.' English borrowed the verb 'retard' through French in the late Middle Ages, and the noun for fire-slowing chemicals is a much more recent, industrial extension of the idea.
- airdrop color
- that bright red dye marks where it already fell
- chemistry
- often ammonium phosphate, basically aggressive fertilizer for scorched ground
- how it works
- coats fuel so flames find nothing to eat
- works wet or dry
- keeps fighting after the water evaporates
- old material
- asbestos was once the celebrated fireproof darling
phos-chek lc-95a — wildfire retardant used by us forest service, dropped from aircraft on fires like the 2021 dixie fire
fire-trol gts-r — aerial retardant developed by phos-chek, primary product used on california wildfires
flame shield fabric — flame retardant textile treatment used in children's sleepwear, regulated by cpsc since 1972