How to store pvc blow shrink film to maintain its properties?

Jun 25, 2025Leave a message

Hey there! As a supplier of PVC blow shrink film, I've had my fair share of experiences with storing this stuff to keep its properties intact. In this blog, I'll share some tips on how to store PVC blow shrink film properly so it stays in top - notch condition.

First off, let's talk about what PVC blow shrink film is. It's a type of plastic film that shrinks when heat is applied. You can find it in various applications like packaging products, protecting items during transit, and even in some DIY projects. If you're interested in different types of PVC shrink films, check out PVC Shrink Film Roll, PVC Blow Shrink Film, and PVC Shrink Film 1500 ft Roll.

Temperature Control

One of the most crucial factors in storing PVC blow shrink film is temperature. PVC film is sensitive to extreme temperatures. If it gets too hot, the film can start to deform or even stick to itself. On the other hand, if it's stored in very cold conditions, the film can become brittle and more prone to cracking.

The ideal temperature range for storing PVC blow shrink film is between 18°C and 25°C (64°F - 77°F). You might need to invest in a temperature - controlled storage area, especially if you live in an area with extreme weather conditions. If you don't have a dedicated temperature - controlled room, you can use insulation materials to keep the temperature as stable as possible. For example, you can line the storage shelves with insulating foam to prevent heat transfer.

Humidity Management

Humidity is another enemy of PVC blow shrink film. High humidity can cause the film to absorb moisture, which can lead to issues like mildew growth, loss of clarity, and changes in the film's mechanical properties.

The recommended humidity level for storing PVC blow shrink film is between 40% and 60%. You can use a dehumidifier in the storage area to keep the humidity in check. Also, make sure the storage area is well - ventilated to prevent the buildup of moisture. You can install fans or open windows periodically (if the outside humidity is not too high) to improve air circulation.

Protection from Light

UV light can degrade PVC blow shrink film over time. Exposure to sunlight or strong artificial light can cause the film to yellow, become brittle, and lose its shrink properties.

To protect the film from light, store it in a dark or low - light environment. You can use opaque storage containers or cover the film rolls with black plastic sheets. If the storage area has windows, use curtains or blinds to block out sunlight.

Proper Packaging and Stacking

How you package and stack the PVC blow shrink film also matters. When the film is delivered, it usually comes in rolls. Make sure the rolls are wrapped properly with protective packaging to prevent dust, dirt, and physical damage.

When stacking the rolls, don't stack them too high. Over - stacking can put too much pressure on the bottom rolls, which can cause deformation. It's best to stack the rolls in a single layer or in a pyramid - like structure with a stable base. Also, make sure the rolls are placed on a flat and stable surface to prevent them from rolling or tipping over.

Avoiding Chemical Exposure

PVC blow shrink film can react with certain chemicals. Avoid storing the film near solvents, cleaning agents, or other chemicals that can cause damage. If there are any spills in the storage area, clean them up immediately to prevent contact with the film.

Regular Inspection

Even if you follow all the storage guidelines, it's still a good idea to inspect the PVC blow shrink film regularly. Check for any signs of damage, such as cracks, tears, or discoloration. If you notice any issues, isolate the affected rolls and determine the cause. It could be due to improper storage conditions or a manufacturing defect.

Long - Term Storage

If you plan to store the PVC blow shrink film for a long time, you need to take extra precautions. In addition to the above steps, you can consider vacuum - sealing the film rolls to further protect them from air, moisture, and light. Also, keep a record of the storage time and conditions for each batch of film. This will help you track the film's quality over time and determine when it's time to use or replace it.

Shrink Film RollPVC BLOW SHRINK FILM

Handling During Storage

When moving or handling the PVC blow shrink film in the storage area, be gentle. Use proper lifting equipment to avoid dropping or dragging the rolls. Rough handling can cause scratches or other physical damage to the film, which can affect its performance.

Benefits of Proper Storage

Storing PVC blow shrink film properly has many benefits. Firstly, it ensures that the film maintains its shrink properties. When you use the film for packaging, it will shrink evenly and tightly around the product, providing a professional and secure look.

Secondly, proper storage extends the shelf - life of the film. You won't have to replace the film as often, which can save you money in the long run.

Lastly, it reduces the risk of product defects. When the film is in good condition, the packaging process will be smoother, and you'll have fewer rejected products due to poor - quality film.

Conclusion

Storing PVC blow shrink film to maintain its properties is not that complicated, but it requires attention to detail. By controlling the temperature, humidity, light exposure, and following proper packaging and handling procedures, you can keep the film in excellent condition for a long time.

If you're interested in purchasing high - quality PVC blow shrink film or have any questions about storage or usage, feel free to reach out. We're here to help you get the best out of our products.

References

  • Plastics Industry Association. (2023). Guidelines for Plastic Film Storage.
  • PVC Manufacturers Council. (2022). Best Practices for PVC Product Storage.