Swimming Pool Liners - The Vermiculite Association

Swimming Pool Liners

Portland cement and the finer grades of exfoliated vermiculite plus may be combined either on site or as a factory premix to provide a base for swimming pool vinyl liners. These mixes are either pumped into place using a rotor stator pump or hand poured. They are used extensively in North America to stop the migration of stones which might puncture the vinyl liner plus they can accommodate movements in the water table.