Collection: PVC Shrink Tubing

PVC Heat Shrink Wrap Tubing Information

PVC heat shrink tubing is manufactured from high-quality polyvinyl chloride film engineered to shrink evenly when exposed to controlled heat. The tubing is placed over a bottle cap, lid, or container closure, and heat is applied using a heat gun or heat tunnel. As heat is applied, the tubing shrinks tightly around the surface, creating a secure and tamper-evident seal.

This tight seal helps prevent contamination, leakage, and unauthorized opening. PVC shrink tubing is widely used for packaging food products, beverages, oils, sauces, spices, and nutraceuticals. It provides both functional protection and visual assurance that the product remains sealed and untouched.

PVC shrink tubing offers excellent transparency, allowing product labels and branding to remain fully visible while adding an additional layer of protection. It is compatible with glass, plastic, and metal containers and performs consistently across a wide range of packaging applications.

How To Measure For PVC Shrink Tubing

Selecting the correct size PVC shrink tubing ensures proper sealing and performance.

• Step 1: Measure the Container Diameter
  Measure the widest diameter of the cap or container closure where the tubing will be applied.
• Step 2: Calculate Flat Width
  Divide the diameter by 2 to determine the flat width. Choose tubing with a flat width slightly larger than the container diameter to allow easy placement before shrinking.
• Step 3: Measure the Seal Height
  Determine how much of the cap and container neck you want to cover. Most tamper-evident seals cover the cap and extend slightly onto the container.
• Step 4: Consider Shrink Capability
  PVC shrink tubing typically shrinks up to 40–50% of its original size, ensuring a tight and secure final fit.

Choosing the proper size ensures a professional appearance and reliable tamper-evident seal.

How To Use Heat Shrink Tubing

Shrink wrap tubing is a preferred packaging option for many companies. Whether using high-speed machinery or handheld manual machines, the basic process is the same. The product is inserted into the tubing, the tubing is sealed and cut, and then heat is applied. Some companies prefer to leave the tubing ends open without making a seal. PVC shrink tubing is installed by sliding it over a component and applying heat using a heat gun or similar device. See the videos below to view how to use shrink wrap tubing each way.

FAQs: About PVC Heat Shrink Tubing

What is PVC heat shrink tubing used for in packaging?

PVC heat shrink tubing is primarily used to create tamper-evident seals around bottle caps, jars, and container closures. It helps protect food products, beverages, sauces, supplements, and cosmetics by providing a secure seal that prevents tampering, contamination, and leakage while improving product presentation.

Is PVC shrink tubing food safe?

PVC shrink tubing is commonly used on the outside of containers, such as bottle caps and closures, where it does not directly contact the food. It provides tamper evidence and protection for packaged food products. For direct food contact applications, materials such as polyolefin shrink film are recommended.

What size PVC shrink tubing do I need?

To select the correct size, measure the diameter of the container closure and divide it by two to determine the flat width needed. Choose shrink tubing slightly larger than the closure so it fits easily before shrinking. The tubing will shrink tightly when heat is applied, creating a secure seal.

How much does PVC shrink tubing shrink?

PVC heat shrink tubing typically shrinks up to 40–50% of its original diameter when heat is applied. This high shrink ratio allows the tubing to conform tightly to various container shapes, ensuring a secure and professional seal.

What equipment is needed to apply PVC shrink tubing?

PVC shrink tubing can be applied using a heat gun, heat tunnel, or shrink tunnel system. Heat guns work well for small packaging operations, while heat tunnels are ideal for higher-volume production environments.

Does PVC shrink tubing provide tamper evidence?

Yes. PVC shrink tubing creates a tamper-evident seal that must be cut or torn to open the container. This makes it immediately clear if a product has been opened or tampered with, helping protect consumers and maintain product integrity.

Can PVC shrink tubing be used on glass and plastic containers?

Yes. PVC shrink tubing works effectively on glass, plastic, and metal containers. It conforms tightly to different shapes and materials, making it a versatile solution for sealing bottles, jars, and other packaging containers.