Plastic trim can be cut using a fine toothed saw. Cutting slowly helps prevent chipping or cracking.
Plastic trim, whether rigid or flexible, can be cut with various tools depending on the type and thickness of the profile. For rigid PVC trims, a miter saw, handsaw or hacksaw with fine teeth is recommended. The finer the teeth, the cleaner the result. The trim should be properly secured during cutting, and it's important to use a slow, controlled motion. For flexible or thin profiles, a sharp utility knife may also be suitable.