Vinyl sheet piles are made of poly vinyl chloride also known as PVC: a material with excellent resistance to weather influences and it has a long service life. Moreover, the material will not be affected by natural forces occurring in the ground, rodents, and salt or fresh water. PVC sheet piling has a number of benefits over traditional steel timber or concrete piling, including, costs, durability, ease of handling and a reduced environmental impact.http://www.bioetp.net/pvc-sheet-pile/