Underlayment is a heavy (7 oz to the yard) synthetic matting. Pond Underlayment comes in 15' x your desired length . It should be placed under the pond liner, when a pond is being installed. Pond Underlayment is a geotextile material used to protect the liner from roots and rocks.
Dependable Performance in Demanding Environments
PondGard EPDM geomembranes are engineered to provide dependable performance in a variety of critical containment applications.
Easy to Install:
Firestone has a large variety of EPDM panel sizes to match your needs, reducing the amount of seaming. When necessary, dependable field seams can be made with Firestone’s QuickSeam Tape System, which requires no special training or expensive equipment.
High Flexibility:
Firestone EPDM remains flexible in a variety of temperatures, from -45° F (-43°C) to 180°F (82°C), enabling it to be installed year round in a variety of climates and terrain
High Elongation:
Firestone EPDM Geomembranes can elongate over 300%, which enables the membrane to stretch and conform to objects in the subgrade.
Superior Weathering Resistance:
Firestone EPDM has documented performance history in exposed applications exhibiting outstanding resisstance to ultraviolet (UV) radiation and ozone.
Outstanding Aging Stability:
PondGard EPDM is a non crystalline material. It contains no plasticizers to migrate and lead to premature membrane failure due to embitterment and cracking.
Fish Friendly:
PondGard is a specially formulated EPDM membrane designed to be used safely in the presence of fish and plant life.
