Rigid PVC trims are rigid like a ruler, but some shapes and sizes may flex over a long length.
PVC trims, such as those offered by MKM Extrusions, are mostly manufactured from external grade rigid PVC. Over longer lengths, they may flex slightly, but they are not soft and cannot be coiled. If bending is required, it is recommended to request a sample of the specific profile to test its properties before making a purchase.