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Choosing the Right Type of Window Hinges The kind of hinges you select for your new windows will affect their function as well as their durability and aesthetics. Friction stays made of stainless steel are durable and have a long life span. They also resist corrosion. They also allow for ventilation control, which can help reduce energy costs. There are a variety of friction stay hinges including standard, restricted, and easy clean. Window hinges made of uPVC uPVC hinges are a vital part of any uPVC windows.