What is full form of upvc pipe?

uPVC actually stands for unplasticised polyvinyl chloride. uPVC is also commonly known as rigid PVC and it is called this because it is hard and does not flex. This material doesn't not contain any phthalates or BPA, so it is actually quite safe. uPVC is so stable and safe that it is actually used to make dental retainers and mouthguards!