This 100' x 100' poly containment/pond liner from Tarp Surplus will contain liquids and prevent flooding or contamination when placed along the insides of ponds. This waterproof 100' x 100' pond liner is a 30mil (14.2 oz./sq. yd.) liner with a Mullen burst strength of 518 psi, tongue tear resistance of 49 pounds, puncture resistance at up to 140 pounds and grab tensile strength of 362 pounds. The hydrostatic resistance is 269 psi. Please make sure the liquid you are containing is compatible with the lining material. If you have questions, consult our expert staff at an American company selling the best tarps and canopies for more than 25 years.