Heat Shrink Film: A Guide To Selecting The Right Type Of Packing Material

Heat shrink film is a polymer material that is popularly used to package finished goods. The material is named after the way it reacts to heat. When a product is wrapped in shrink film and heat is applied to it, the film shrinks to conform to the This makes the package tamper resistant. It is available in a variety of thicknesses, strengths, clarities and shrink ratios. Most importantly, shrink film can be categorized under 3 main types based on the material.
PVC Shrink Film
This is one of the most common types of shrink film. It is versatile, lightweight and inexpensive. Once treated with heat, it is rigid and durable, This has made it useful for blister packaging and clamshell packaging. However, the material is now banned In many countries because of the combination of chemicals used in its manufacturing. When heated, the material gives off strong fumes that could be harmful if inhaled. It also has the risk of wrinkling in warm weather and becoming brittle in extreme cold. This makes it In terms of shrinkage, PVC shrink film shrinks on a single direction and has a low shrink force.
POF Shrink Film
This refers to Polyolefin shrink. It is considered premium shrink film and is extremely versatile and durable. It is also FDA approved and hence often used to package consumables. Some of its key characteristics include high strength strength, clarity and cross linked wrap. It is POF shrink film is available in thicknesses ranging from 35 gauge to 100 gauge. The cross linked wrap property lowers the maintenance cost on the machinery used with this material. The heat shrink film is also available in It is 100% recyclable and has a glossy appearance. It may be used to package individual products or to bundles multiple pieces together. For example, it can be used to bundle tissue boxes together.
PE Shrink Film
This is made from a type of polyolefin – Polyethylene. It is available in many different forms with Low-Density Polyethylene being the most common for packaging purposes. The advantages of using this type of packaging include higher strength and durability especially for heavy items. This makes it useful even if you're packing a boat! On the flip side, PE shrink film has a low shrink rate. It is also available in higher gauges going up to 1200 gauge. of up to 20% and is not as clear as other films.

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Knowing the difference between the three main types of heat shrink film and their pros and cons will put you in a better position to choose the right material for your packaging needs. Once you know what type of material you need, get quotes from at least 3 vendors. This puts you in a good position to negotiate rates. That said, always prioritize quality over costs.