The manufacturing process creates two distinct types of stretch film, which are known as cast and blown varieties. Cast film is produced by cooling a molten polymer on a chilled roller, resulting in excellent clarity, quiet unwind, and high tear resistance. On the other hand, blown film is created by blowing a bubble of molten resin, which yields a tougher product with superior puncture resistance but higher noise levels during application. Choosing between these types depends entirely on the specific requirements of the load being wrapped.
Read More – https://www.singhalglobal.com/products/stretch-films-lldpe-stretch-film