No Heat Insulation Film for Full Container Export? Loss Rate Increases 19 Times! What if you don’t apply heat insulation film for full-container export?
In international logistics, full-container export of PET canisters is a common scenario for Outstanding Packaging. Many exporters often overlook a crucial detail—heat insulation film. They think, “It’s just a layer of film; is it really necessary?” Today, Outstanding Packaging will use data to tell you the truth: this small layer of film is the key to avoiding huge losses in export transportation!
In international logistics, shipping PET canisters in full containers seems like a simple transportation link, but details often determine success or failure. For exporters, the most worrying thing is product damage during long-distance shipping—deformed canisters, brittle bottle mouths, or even unqualified products that fail to pass customs inspection. What causes these losses? The answer often lies in a small detail that is easily overlooked: whether to apply heat insulation film.
Many exporters have the same misunderstanding: “The PET canisters themselves are high-temperature resistant and impact-resistant; why do we need an extra layer of heat insulation film?” But the reality of long-distance maritime shipping is far harsher than we imagine. Let’s look at a set of shocking data from Outstanding Packaging’s actual export cases:
For the same batch of PET canisters, if no heat insulation film is applied, the deformation rate of the canisters due to high-temperature exposure and temperature difference changes during long-distance maritime shipping can be as high as 3.8%; under the same shipping conditions, the deformation rate of canisters with heat insulation film applied is only 0.2%.
This is not a small difference in decimals—it is a huge gap of 19 times! A 3.8% deformation rate may seem insignificant, but for large-batch export orders, it means that hundreds or even thousands of canisters are deformed, unqualified, and unable to be sold. This not only brings direct economic losses to exporters but also affects brand reputation in the target market, and even leads to disputes with overseas clients.
Why does such a huge gap occur? It all starts with the characteristics of PET materials and the harsh environment of maritime shipping.
PET (Polyethylene Terephthalate) is the main material of Outstanding Packaging, known for its high transparency, high strength, and good barrier properties. However, even with these excellent characteristics, PET still has a weakness in long-distance maritime shipping: it is sensitive to extreme temperature changes. During maritime transportation, containers are often exposed to direct sunlight for a long time. The temperature inside the container without heat insulation film can rise sharply—especially in summer or when sailing through tropical regions, the internal temperature of the container can reach 60℃ or even higher. Under such high temperatures, the PET material will soften, its rigidity will decrease, and it will easily deform under the pressure of stacking or slight impact.
In addition to high temperature, the temperature difference between day and night during maritime shipping is also a key factor causing canister deformation. During the day, the container is heated by sunlight, and the temperature inside rises rapidly; at night, the temperature drops sharply, and the sudden change in temperature will cause the PET material to expand and contract alternately, which will damage the molecular structure of the material over time, leading to deformation, brittleness, and even cracking of the canisters.
The role of heat insulation film is to effectively solve these problems. It acts as a “protective shield” for PET canisters during long-distance shipping, with three core functions:
First, it effectively reduces the internal temperature of the container. The heat insulation film can reflect most of the sunlight, preventing the container from absorbing a lot of heat, thus keeping the internal temperature of the container stable and avoiding the softening of PET materials caused by high temperature.
Second, it reduces temperature differences. The heat insulation film can slow down the speed of temperature rise and fall inside the container, reducing the damage to PET materials caused by alternating hot and cold, and avoiding deformation and brittleness.
Third, it protects the surface of the canisters. In addition to heat insulation, the heat insulation film can also prevent dust, scratches, and slight impacts during transportation, ensuring that the appearance of the canisters remains intact when they arrive at the port.
For exporters, applying heat insulation film is not an extra cost, but a wise investment in cost control and quality assurance. Let’s do a simple calculation: suppose you export a full container of 100,000 PET canisters, with a unit price of $0.5 per canister. If no heat insulation film is applied, the deformation rate is 3.8%, which means 3,800 canisters are unqualified, resulting in a direct loss of $1,900. If heat insulation film is applied, the deformation rate is only 0.2%, with only 200 unqualified canisters and a direct loss of $100. The cost of heat insulation film for a full container is only about $200, which can save $1,600 in direct losses. More importantly, it avoids the loss of brand reputation and client trust caused by unqualified products, which is invaluable.
Outstanding Packaging has accumulated rich experience in PET canister export, serving hundreds of overseas clients. We have found that 90% of the deformation problems of PET canisters during export are caused by not applying heat insulation film or using low-quality heat insulation film. Therefore, we always remind every export client: don’t save the cost of a layer of heat insulation film, because the loss caused by not applying it is 19 times that cost!
In addition to recommending the use of heat insulation film, Outstanding Packaging also provides professional full-container export supporting services to help exporters avoid all kinds of risks in transportation:
1. Professional packaging reinforcement: We will reinforce the stacking of PET canisters in the container, using partition boards and shockproof materials to reduce collision and pressure between canisters, further reducing deformation.
2. Customized heat insulation solutions: According to the shipping route (such as tropical regions with higher temperatures), we will recommend suitable heat insulation film specifications to ensure the best heat insulation effect.
3. Strict pre-shipment inspection: Before loading the container, we will conduct a comprehensive inspection of each batch of canisters, ensuring that the canisters are intact and the heat insulation film is pasted firmly, avoiding potential risks.
In international trade, every detail affects the success of the order. The heat insulation film for full-container export is a small detail, but it determines the quality of the products arriving at the port and the reputation of the brand. Outstanding Packaging has always adhered to the concept of “details determine success or failure”, focusing on every link of export packaging and transportation, helping exporters reduce losses and win the trust of global clients.
For exporters, full-container export of PET canisters is not just about loading the container and shipping it. It is about ensuring that every product arrives at the client’s hands intact. A layer of heat insulation film may seem trivial, but it is the key to avoiding 19 times the loss. Choose Outstanding Packaging, and we will use professional experience to help you control every detail of export transportation, making your global business smoother and more reassuring.
Post time: May-29-2026