What shrink wrap is best?

What Shrink Film is Best for Your Product or Application?

If you want to keep your product safe and secure for sale, you may have already seen that shrink film can help you do that. There are many kinds of shrink film on the market today so it's important to get the right type. Not only will choosing the right type of shrink film help protect your product on the shelf, but it will also enhance the buying experience for your customers or buyers.

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The three main types of shrink film available are PVC, Polyolefin, and Polyethylene. Each of these shrink films offers unique properties that make them suitable for various applications. Understanding the specific characteristics of these films can help you determine which one will best meet your needs.

Here are some strengths and weaknesses of each type of shrink film to help you choose which one may be best for your application.

PVC (also known as Polyvinyl Chloride)

Strengths:

This film is thin, pliable, and light, typically more affordable than most shrink films. It shrinks only in one direction and is highly resistant to tearing or puncturing. PVC has a clear, shiny presentation, making it aesthetically pleasing to the eye.

Weaknesses:

PVC softens and wrinkles if the temperature gets too high, and it becomes hard and brittle if it becomes to cool. Because the film has chloride in it, the FDA has only approved PVC film for use with inedible products. This also causes it to emit toxic fumes during heating and sealing, making it necessary to use it in very well-ventilated areas. This film therefore also has strict disposal standards. PVC is not generally suitable for bundling multiple products.

Polyolefin

Strengths:

This shrink film type is FDA approved for food contact since it doesn’t have chloride in it, and it produces much less odor during heating and sealing. It’s better suited for irregularly shaped packages as it shrinks more fully. The film has a beautiful, glossy surface and is exceptionally clear. Unlike PVC, it can withstand a much wider range of temperature fluctuations when stored, saving inventory. If you need to bundle multiple items, polyolefin is a great choice, and it is highly resistant to puncture and tearing. Cross-linked polyolefin is also available which increases its strength without sacrificing clarity. Polyolefin is also 100% recyclable, making it the “green” choice.

Weaknesses:

Polyolefin is more expensive than PVC film, and it may also require perforations in some applications to avoid air pockets or bumpy surfaces.

Polyethylene

Strengths:

Beneficial for wrapping multi-packs of heavy items—for example, a large count of beverages or water bottles. It is highly durable and is able to stretch more than other films. As with polyolefin, polyethylene is FDA approved for food contact. While PVC and polyolefin films are limited in thickness, usually only up to 100-gauge, polyethylene can be scaled up to 1200-gauge, making it ideal for wrapping vehicles such as boats for storage. Uses range from bulk or frozen foods to trash bags and palletizing as stretch wrapping. Check with your manufacturer to know which form (LDPE, LLDPE, HDPE) you should use.

Weaknesses:

Polyethylene has a low shrink rate of around 20% and isn’t as clear as other films. It is more expensive than other films. Polyethylene shrinks while cooling after it has been heated, making it necessary to have additional space for cooling at the end of your shrink tunnel.

Conclusion

Make sure you know what shrink film you need for your product application. It will save you time and money. If you need help, let one of our packaging experts help you. Traco Packaging has been supplying shrink film for over 35 years. Call or email one of our packaging specialists to get your project going, or go to our website at https://www.tracopackaging.com/and request a quote today.

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Learn Which Shrink Film Is Right for the Job

With any project, you need the right tools for the job. With shrink wrap, you need the right shrink film for what you’re trying to accomplish. There are three main types of plastic that are used as shrink wrap material: PVC, polyolefin, and polyethylene. So, which one is the right fit for your project?

Let’s explore the differences between PVC, polyolefin, and polyethylene for shrink wrap.

PVC

This was once the most commonly used shrink film. It has applications in packaging for CDs/DVDs, boxes for software and video games, and other non-edible objects.

PVC is more tear-resistant than polyolefin, but sensitive to temperature changes. Cold makes it brittle and heat makes it wrinkle. This makes it less useful for preserving items that may face those conditions.

It also releases harmful fumes during sealing and heating. As a result, using PVC shrink wrap requires ventilation and other precautions during application and disposal.

Polyolefin

This shrink film is considered a premium replacement for PVC. It’s often used to bundle consumer products like toys, candies, foods, games, tissue boxes, and other retail items. That’s because it’s great for consumer products, due to its glossy high-clarity appearance, low cost, and versatility. It’s also FDA-approved for contact with food.

Polyolefin shrink wrap is more expensive than PVC, but more puncture-resistant and temperature-resistant. This makes it better for binding multiple items.

Polyethylene

This heavier-duty shrink film is used for larger commercial items like beverage multipacks, as well as for industrial applications. Whereas PVC and polyolefin are limited to thicknesses around 100-gauge, polyethylene comes in up to 1200-gauge. This allows it to be used for larger-scale projects like shrink wrap for boats.

Polyethylene shrink wrap is more expensive than PVC or polyolefin, but thicker, tougher, and more stretchable. This is why it’s used in those heavy-duty industrial shrink wrap jobs. However, polyethylene is also harder to shrink out completely and requires more cooling space. It should come as no surprise that the shrink film used for larger industrial-scale projects requires more skill and space to apply.

This is also the only one of these three types of shrink wrap that’s recyclable. So, if you’re trying to be environmentally conscious, this may be an option worth looking into.

Our Shrink Film

So, what kind of shrink film does Unlimited Shrinkwrap use for our projects?

We use 100% virgin resin shrink wrap with maximum UV inhibitors. This high-quality polyethylene shrink wrap is the best-suited to those projects where you need professional help, such as shrink wrapping your boat, car, plane, or other large heavy objects.

Installing thick polyethylene shrink film for a large project isn’t easy, and if it isn’t done right then there can be fire hazards or the seal could be broken. That’s why you want someone experienced to do it for you. For expert application of high-quality shrink film in McHenry, IL and the Chicago area, call Unlimited Shrinkwrap today!

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