UPVC stands for untouched-sized polyvinyl chloride. PVC stands for polyvinyl chloride, these are the most Types of plastic in the composition UPVC is rigid or stiff and does not contain plasticizers, making it more durable and good for construction applications like window frames and pipes. PVC contains plasticizer making it pliable and flexible and used for cables and inflatable structures. So it's plasticized material.

Some more details:

UPVC:

UPVC is compact because there are no plasticizers. PVC is a synthetic polymer that is present in more rigid and flexible forms. It is widely used in construction and plumbing and other industrial applications etc. The plasticizer that is used adds flexibility during manufacturing. The product is bendable but more or less uniform to environmental factors. UPVC is unplasticized on the other hand and is a form of PVC. The use of plasticizer rigidity and durability to UPVC makes it resistant and okay in sunlight weather and chemical pressure. UPVC is preferred for the construction of pipes and plumbing. It provides structural strength and lots of stability, hence it lasts long in many applications. It is resistant to UV rays so does not degrade or get spoilt in the sunlight.

PVC:

PVC is a synthetic polymer and can be in rigid and flexible forms. It is majorly used in construction, plumbing, and many other industrial applications. The flexibility due to plasticizers is added in its manufacture. UPVC is rigid because it has no plasticizer hence put to other uses for example: The construction of windows and doors. The rigid UPVC gives structure, strength stability, and longevity. It is resistant to UV rays so neither depends on getting discolored. Both have their disadvantages and advantages.