Does it float?

Floating is decided by density — mass divided by volume — against the fluid, and by nothing else. Weight is irrelevant on its own: a 200-tonne ship floats and a 2-gram pebble sinks, because the ship encloses enough air to bring its average density under that of water.

Floats — 33 materials

Sinks — 77 materials

Every material

• Does air float? Yes
• Does expanded polystyrene foam float? Yes
• Does rigid polyurethane foam float? Yes
• Does EVA foam float? Yes
• Does balsa float? Yes
• Does corrugated cardboard float? Yes
• Does cork float? Yes
• Does western red cedar float? Yes
• Does spruce float? Yes
• Does pine float? Yes
• Does Douglas fir float? Yes
• Does mahogany float? Yes
• Does plywood float? Yes
• Does black walnut float? Yes
• Does OSB float? Yes
• Does particleboard float? Yes
• Does teak float? Yes
• Does ash float? Yes
• Does birch float? Yes
• Does bamboo float? Yes
• Does gypsum board (drywall) float? Yes
• Does red oak float? Yes
• Does hard maple float? Yes
• Does beech float? Yes
• Does MDF float? Yes
• Does white oak float? Yes
• Does paper float? Yes
• Does leather float? Yes
• Does polypropylene float? Yes
• Does ice float? Yes
• Does LDPE float? Yes
• Does natural rubber float? Yes
• Does HDPE float? Yes
• Does ebony float? No
• Does water float? No
• Does ABS float? No
• Does polystyrene float? No
• Does plaster float? No
• Does nylon 6 float? No
• Does nylon 66 float? No
• Does epoxy resin float? No
• Does acrylic (PMMA) float? No
• Does polycarbonate float? No
• Does lignum vitae float? No
• Does PLA float? No
• Does flexible PVC float? No
• Does silicone rubber float? No
• Does PETG float? No
• Does neoprene float? No
• Does rigid PVC float? No
• Does POM (acetal / Delrin) float? No
• Does aramid fibre (Kevlar) float? No
• Does woven carbon fibre composite float? No
• Does unidirectional carbon fibre composite float? No
• Does magnesium float? No
• Does brick float? No
• Does fibreglass (GRP) float? No
• Does fired clay (terracotta) float? No
• Does PTFE float? No
• Does fused quartz float? No
• Does graphite float? No
• Does borosilicate glass float? No
• Does sandstone float? No
• Does asphalt (hot-mix) float? No
• Does concrete float? No
• Does porcelain float? No
• Does limestone float? No
• Does reinforced concrete float? No
• Does soda-lime glass float? No
• Does tempered glass float? No
• Does quartz float? No
• Does aluminum float? No
• Does aluminum 6061 float? No
• Does granite float? No
• Does marble float? No
• Does slate float? No
• Does aluminum 7075 float? No
• Does silicon carbide float? No
• Does diamond float? No
• Does alumina float? No
• Does Ti-6Al-4V titanium alloy float? No
• Does titanium float? No
• Does ductile iron float? No
• Does zinc float? No
• Does gray cast iron float? No
• Does chromium float? No
• Does pewter float? No
• Does tin float? No
• Does lead-free solder (SAC305) float? No
• Does wrought iron float? No
• Does tool steel float? No
• Does high-carbon steel float? No
• Does mild steel float? No
• Does iron float? No
• Does stainless steel 304 float? No
• Does stainless steel 316 float? No
• Does Inconel 718 float? No
• Does brass float? No
• Does tin-lead solder (60/40) float? No
• Does bronze float? No
• Does Monel 400 float? No
• Does nickel float? No
• Does copper float? No
• Does silver float? No
• Does lead float? No
• Does mercury float? No
• Does tungsten carbide float? No
• Does tungsten float? No
• Does gold float? No
• Does platinum float? No