When you need durable construction, aesthetic merit, and a long lifespan all in one roll-up curtain door, Alumatec has just the model for you. Our high-cycle polycarbonate model, the LXR-HC, is a roller shutter curtain for exteriors where appearance and performance matter in equal measure. The LXR-HC offers a 99.9%-enclosed curtain shutter with a high-end look, but make no mistake—this polycarbonate shutter is for heavy-duty performance. Alumatec manufactures its LXR line for exterior applications, featuring 3/32” clear polycarbonate windows that fully enclose your space without losing light and visibility. Standard high-cycle roll-up curtain doors include heavy-duty 3” deep guides with ABS wear-strips, 100K+ cycle-life counterbalance springing, and high-cycle/high-yield flange bearings to provide years of maintenance-free operation for your roller shutter curtain.