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