What is the heat resistance of flexible PVC film and sheets? Flexible PVC film starts to soften at 60C/140F. This is due to its plasticizer content. The softer the film, the more plasticizer, the lower temp it melts at. So if your film will only be exposed to a heat environment below 60C/140F, flexible PVC film is a good choice.
If you need a great film that will resist more heat than that, virtually all of our other plastic film products have a higher softening point. Check out DuraLar, Clearlay, Acetate, HDPE and Polypropylene film and sheet products.