The reinforced film or liner is a PVC material specifically designed for pools. For several years it has been used as the a secure option for pool lining. It provides 100% tightness and applies on all types of construction: pools made of concrete or gunite, on metal formwork, or aluminum or pastic formworks, etc. It is installed fast and easily, without construction works, does not require maintenance and ensures longevity. Crystal Pools provides a film reinforced with polyester mesh from Germany, compliant with the highest quality standards and 1,5mm thick. It is resistant to UV rays and micro-organisms and does not contain toxic substances. The surface is smooth, particularly resistant to the chemicals used for cleaning the pool water and is easily cleaned as it has no absorbency.