intumescent
Expands when heated
Intumescent describes materials that swell when exposed to heat, forming an insulating char that protects underlying surfaces from fire.
Intumescent coatings on structural steel expand dramatically when heated, buying time before the metal weakens: The intumescent paint had swelled to several times its original thickness.
The word comes from a Latin root meaning to swell up.
Inhibits ignition and burning
- fire-resistantSlow to catch flame
- firestopSeal blocking flame spread
- firewallNetwork access control system
- compartmentalizationDivision into distinct sections
Burn without destroying
- foamBubble-filled substance
- swellingAbnormal tissue enlargement
- puffingLabored breathing, short bursts
- bloatingSwollen, expanded state
inflation · enlargement · distension · carbonaceous · multicellular · bubbling · blistering · growth
Colored coating substance
- filmMovie or coating
- layerSingle thickness of material
- applicationFormal request document
- polymerLarge repeated-unit molecule
acrylic · epoxy · water-based · sprayable · brushable · thickness · substrate · adhesion
Burning surface black
- dehydrationExcessive fluid loss
- melamineNitrogen-rich plastic precursor
- phosphatePO₄ ion compound
- borateBoron acid salt
Away from land
- petrochemicalProduct from crude processing
- tunnelEnclosed underground route
- aircraftAirborne transportation vehicle
- marineRelating to the sea
nuclear · electrical · HVAC · architectural · retrofit · high-rise · warehouse · industrial
flame-retardant
Inhibits ignition and burning
- fire-resistantSlow to catch flame
- firestopSeal blocking flame spread
- firewallNetwork access control system
compartmentalization · ductwork · beam · column · joist · deck · certification
char
Burn without destroying
- foamBubble-filled substance
- swellingAbnormal tissue enlargement
- puffingLabored breathing, short bursts
bloating · inflation · enlargement · distension · carbonaceous · multicellular · bubbling · blistering · growth · puffy
paint
Colored coating substance
- filmMovie or coating
- layerSingle thickness of material
- applicationFormal request document
polymer · acrylic · epoxy · water-based · sprayable · brushable · thickness · substrate · adhesion · binder
charring
Burning surface black
- dehydrationExcessive fluid loss
- melamineNitrogen-rich plastic precursor
- phosphatePO₄ ion compound
offshore
Away from land
- petrochemicalProduct from crude processing
- tunnelEnclosed underground route
- aircraftAirborne transportation vehicle
marine · nuclear · electrical · HVAC · architectural · retrofit · high-rise · warehouse · industrial · commercial
intumescentflammable
Prone to ignition
combustible · ablative · incendiary · non-reactive · unprotected
intumescentshrinking
Decreasing in dimension
contracting · deflating · subsiding · collapsing · compressing