PVC
PVC is the most commonly specified liner in the industry. It is a highly flexible, non-reinforced, cost-effective, waterproofing geomembrane liner with many uses and advantages for the user.

Since PVC is degraded by light it requires being covered with a minimum of 12" (1 foot) of clean fill to function as designed. In buried applications, PVC can provide a service life of over 20 years. Slopes should be limited to 3:1, and cover soils should be walked in from the bottom of the pond to the top, always keeping a minimum of 12" of clean soil between your equipment and the membrane.

HDPE
HDPE is the most widely used geomembrane in the world. It has excellent chemical resistance, good UV stability and is used more commonly internationally due to its availablility and cost. HDPE is another UV-stable product.

HDPE cannot be prefabricated and is a very technical product to install properly due to its lack of flexibility and the technical nature of field work seaming. (There is a great deal more field welding due to the lack of factory fabrication.)

RPP
RPP is a reinforced product that can be fabricated into large panels of 15,000-20,000 sq. ft. It is UV stable and therefore requires no soil cover. It can be manufactured in various colors and is easily heat welded in the field for good quality field seams.

RPP is becoming increasingly popular in the golf construction market. It is used primarily on lakes where there is limited cover material or the slope design is too steep to hold a cover soil.