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2. Bituminous waterproofing - Wikipedia

   en.wikipedia.org/wiki/Bituminous_waterproofing

   Bitumen (asphalt or coal-tar pitch) is a material made up of organic liquids that are highly sticky, viscous, and waterproof. [ 1] Systems incorporating bituminous-based substrates are sometimes used to construct roofs, in the form of "roofing felt " or "roll roofing" products.

3. IP code - Wikipedia

   en.wikipedia.org/wiki/IP_Code

   IP code. The IP code or ingress protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529 [ 1] which classifies and provides a guideline to the degree of protection provided by mechanical casings and electrical ...

4. Water Resistant mark - Wikipedia

   en.wikipedia.org/wiki/Water_Resistant_mark

   Water Resistant is a common mark stamped on the back of wrist watches to indicate how well a watch is sealed against the ingress of water. It is usually accompanied by an indication of the static test pressure that a sample of newly manufactured watches were exposed to in a leakage test. The test pressure can be indicated either directly in ...

5. Waterproofing - Wikipedia

   en.wikipedia.org/wiki/Waterproofing

   Waterproofing. Waterproofing is the process of making an object, person or structure waterproof or water-resistant so that it remains relatively unaffected by water or resisting the ingress of water under specified conditions. Such items may be used in wet environments or underwater to specified depths. Water-resistant and waterproof often ...

6. Common ethanol fuel mixtures - Wikipedia

   en.wikipedia.org/wiki/Common_ethanol_fuel_mixtures

   Ethanol fuel mixtures have "E" numbers which describe the percentage of ethanol fuel in the mixture by volume, for example, E85 is 85% anhydrous ethanol and 15% gasoline. Low-ethanol blends are typically from E5 to E25, although internationally the most common use of the term refers to the E10 blend. Blends of E10 or less are used in more than ...

7. Radar beacon - Wikipedia

   en.wikipedia.org/wiki/Radar_beacon

   Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [ 1] – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the ...

8. Durable water repellent - Wikipedia

   en.wikipedia.org/wiki/Durable_water_repellent

   Durable water repellent, or DWR, is a coating added to fabrics at the factory to make them water-resistant ( hydrophobic ). Most factory-applied treatments are fluoropolymer based; these applications are quite thin and not always effective. Durable water repellents are commonly used in conjunction with waterproof breathable fabrics such as Gore ...

9. Nikwax Analogy - Wikipedia

   en.wikipedia.org/wiki/Nikwax_Analogy

   Unlike most "waterproof breathable" fabrics, Analogy can pass out liquid water as well as vapour. Unlike a conventional waterproof fabric, Analogy would fail a hydrostatic head test (if used to seal the bottom of a tube containing water, only a very short column could be supported). However, like fur, Analogy causes water to flow away from the ...