Living hinges are also known as integral hinges. These hinges work best in flat applications rather than wrapped around a 90-degree corner, unless a hasp or lock is used. These black acrylic / polycarbonate hinges have a slim, low-profile design and are extruded from high-impact acrylic and a urethane elastomer. A thin, flexible section allows the two rigid sections to open and close without a separate hinge pin. Pre-applied translucent double-sided mounting tape delivers a strong bond. The pressure-sensitive adhesive bonds on contact to provide immediate handling strength. Peel off the backing and press onto a suitable clean surface for installation without glue. Acrylic and polycarbonate are similar thermoplastics often used interchangeably; acrylic gives good strength and UV resistance, while polycarbonate gives higher impact and heat resistance.