Water resistance
# Water resistance

Water resistance may refer to:

* The WR mark on a wristwatch indicating its ability to withstand exposure to water
* The IP code on a mechanical or electrical enclosure indicating its ability to resist the ingress of water
* Wet strength, a measure of the strength of paper when wet
* Waterproofing, making objects or structures resist the ingress of water under specified conditions
* Fluid resistance, drag in water
* Lotus effect (water-resistance in plant leaves)
* The electrical resistivity of water (0.2 Ω·m sea water, 2 to 200 Ω·m drinking water, 180000 Ω·m deionized water at 20°C)

See also:

* Hydrophobe
* Superhydrophobe
