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2. Pond liner - Wikipedia

   en.wikipedia.org/wiki/Pond_liner

   Pond liners need to be protected from sharp objects (for example, stones) below the liner and from being punctured by any objects in the water body. Protection can be provided with layers of sand, geotextiles (particularly needle-punched nonwovens) and other materials. Pond liners are manufactured in rolls or accordion-folded on pallets.

3. Landfill liner - Wikipedia

   en.wikipedia.org/wiki/Landfill_liner

   A landfill liner, or composite liner, is intended to be a low permeable barrier, which is laid down under engineered landfill sites. Until it deteriorates, the liner retards migration of leachate , and its toxic constituents, into underlying aquifers or nearby rivers from causing potentially irreversible contamination of the local waterway and ...

4. EPDM rubber - Wikipedia

   en.wikipedia.org/wiki/EPDM_rubber

   Such coatings can also improve the chemical resistance of EPDM rubber. Some vehicle manufacturers also recommend a light application of silicone dielectric grease to weatherstrip to reduce noise [citation needed]. This synthetic rubber membrane has also been used for pond liners and flat roofs because of its durability and low maintenance costs ...

5. Ethylene propylene rubber - Wikipedia

   en.wikipedia.org/wiki/Ethylene_propylene_rubber

   Ethylene propylene rubber (EPR, sometimes called EPM referring to an ASTM standard) is a type of synthetic elastomer that is closely related to EPDM rubber. Since introduction in the 1960s, annual production has increased to 870,000 metric tons. [1] [2] The skeletal formula of ethylene propylene rubber.

6. Waste pond - Wikipedia

   en.wikipedia.org/wiki/Waste_pond

   A waste pond or chemical pond is a small impounded water body used for the disposal of water pollutants, and sometimes utilized as a method of recycling or decomposing toxic substances. Such waste ponds may be used for regular disposal of pollutant materials or may be used as upset receivers for special pollution events.

7. When is the last day to ship for Christmas? Deadlines ... - AOL

   www.aol.com/last-day-ship-christmas-deadlines...

   Prices can get up to $60 for expedited shipping, which may be more than the cost of the gift. This article was originally published on TODAY.com. Show comments. Advertisement. Advertisement.