For best results while applying patches to repair liners
, in the case of Polythene liners, clean liner with clean water and let dry before applying patch. For EPDM, clean liner with a rubber pad and clean water and let dry before applying patch. The main point is to remember not to use solvent or gasoline to clean the liner. The success of PondPro 2000 is through combining ethylene and propylene with a diene monomer. PondPro 2000 is safe for fish and plant life as well as chlorinated water. This polymer (when crosslinked) is an excellent moisture barrier, resistant to oxidation and UV degradation but its most important property is its ability to tolerate both low as well as high temperatures (from minus 62 to plus 350 degrees Fahrenheit).