PVC (Poly Vinyl Chloride) Membrane is the most cost effective and common material choice for both temporary and permanent tension structures. PVC is available in a variety of colours and types to meet a wide range of applications and structural requirements. PVC membranes are coated and treated with specific formulas to protect against UV, staining and fire resistance. Warranties for PVC fabrics range from 5 to 12 years.
PTFE (Poly Tetra Fluoro Ethylene) is a Teflon coating over woven fibreglass fibers, a high quality material suitable for only permanent applications. It is UV resistant, noncombustible, and boasts a high reflective capability. Due to the smooth Teflon surface, the membrane is washed clean every time it rains and therefore normally does not require additional cleaning. With a life expectancy in excess of 30 years, a PTFE membrane structure will stand the test of time, with warranties for PTFE ranging from 10 to 15 years.
ETFE (copolymer of ethylene and tetrafluoroethylene) have specific advantages such as a translucency of 90%,high absorption of radiation, low absorption of UV and visible light that give associated advantages for use where covered landscape areas are required. ETFE is an increasingly popular film material that is typically used for pneumatic Cushion Structures.
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