Preform is to form or shape a product to a preliminary shape and size. In easy words for PET Preforms the PET (Polyethylene Terephthalate) material is formed to a shape which is like moulded to a specific shape which is then afterwards blown to a bottle in the blowing machine.
There is one characteristic of PET preform, which is the product that made from it will be clear and transparent. The surface is smooth and sparking, which can attract the buyer's attention. This makes the PET preform a delicate product. On the other hand, although the PET preform can create a similar sensation just like glass. It’s not fragile as glass. The wall is strong and tough, which appears on the container.
Preforms play a very vital role in deciding the strength of the PET Bottle. There are various methods to form a Preform and there are many factors which affect it.