polyurethane foam

Spray-on building insulation

Polyurethane foam is a lightweight, spongy material made by combining chemicals that react to form tiny gas bubbles trapped in plastic.

Flexible versions fill mattresses, cushions, and car seats.

Rigid versions insulate buildings and appliances.

Spray foam expands on contact to fill gaps and cavities: The contractor used polyurethane foam to seal the attic.

Related
  • paddingMaterial for cushioning
  • polyolMulti-hydroxyl alcohol compound
  • softYielding to touch
  • polymerLarge repeated-unit molecule
  • curingRestoring health or preserving

mattress · egg crate · couch cushions · surfactant · squish · flexibility · cushion · catalyst · insulation board · spongy · seat · porosity · bounce · crosslinking · recyclability · packing · packing peanuts · couch

Categories
Opposites
material origin

polyurethane foamnatural fiber

Material from living sources

wool · down feathers · kapok · cork · horsehair

material structure

polyurethane foamsolid wood

Timber without composite layers

stone · concrete · hardwood · cast iron · granite

environmental impact

polyurethane foambiodegradable materials

Items that decompose naturally

organic cotton · natural wool · wool insulation · straw bale · bamboo fiber

Family

foam, poly, urethane

Familiarity
Top 50,000
Profile
Used worldwide · Timeless · Concrete · Rated G