171 PVC base Aluminum layer PET coating, resistance to environmental conditions Substrate AF/ArmaFlex Self seal AF/ArmaFlex UV-resistance is tested with weather-o-metre equipment acc. to ISO 4892 High mechanical resistance Pre-fabricated elbows and tees PROPERTIES Specially designed pre-formed Arma-Chek Silver elbows and bends allow additional savings in installation time. Unlike traditional metal coatings, Arma-Chek Silver recovers its original shape by itself after being subjected to surface pressure. This property prevents permanent dents and guarantees a durable installation PREFORMED PIECES RESISTANCE TO SURFACE PRESSURE AF/ArmaFlex Arma-Chek Silver