The two main types of Stretch Film are blown stretch film and Cast Stretch Film.
1. Blown stretch film: Blown stretch film is a type of film that is created by blowing melted resin through a circular die to create a tube of film. This tube is then cooled and collapsed to create a flat film. Blown stretch film is known for its high cling properties, making it suitable for irregularly shaped loads such as odd-shaped pallets and sharp-edged objects. Blown stretch film is also very strong and has good puncture resistance.

2. Cast stretch film: Cast stretch film is created by melting resin and casting it onto a chill roll. The film is then stretched in one direction and cooled. Cast stretch film is known for its excellent clarity, making it easy to identify the products wrapped inside the film. It is suitable for use with most products and is often used with automated stretch wrapping machines.

Both types of stretch film have their own advantages and disadvantages, and choosing the right film for your application will depend on factors such as load size, protection requirements, and budget constraints. Blown stretch film is more expensive than cast stretch film but offers superior cling and puncture resistance. On the other hand, cast stretch film is more cost-effective and offers a clearer film for product visibility.