Thick-sheet thermoforming As a popular industry, materials include PP, PVC, ABS, acrylic, and more. Different materials impose distinct performance requirements on thick‑film blister packaging processes. Today, we’ll outline the key performance criteria that PP plastic must meet for processing into thick‑sheet thermoformed packaging.

　　1. Plastic memory performance:

　　The so‑called plastic memory refers to the tendency of a softened polypropylene sheet, when stretched, to contract and resist tensile forces while also striving for uniform elongation. This property enables products formed via thermoforming to revert to their original flat shape if reheated to the initial forming temperature. It plays a crucial role in the stretching phase of plastic forming processes.

　　2. Hot Stretching

　　So‑called thermo‑stretchability refers to the ability of PP sheet material to stretch when heated, which significantly affects the shape and quality of thermoformed products. Thick PP thermoforming materials may exhibit a stretch ratio of 15% to 20%, while some can even stretch by 500% to 600%.

　　3. Thermal Strength

　　Namely pp Thick-sheet thermoforming During processing, the sheet material softens under heat and, with just a gentle press, forms a crisp outline on the thermoforming mold. On the other hand, if plastic forming requires excessively high pressure while vacuum thermoforming can only generate a limited pressure differential, it becomes difficult to reproduce fine details or intricate patterns.

　　4. Molding Temperature

　　Molding temperature performance means that sheets used for thermoforming of thick‑sheet blister packs should have an appropriate processing temperature range. Polypropylene (PP) sheets soften at a specific temperature during thermoforming, making them easy to mold, and this softening point is sufficiently distinct from their melting point, resulting in a relatively broad molding temperature window. Molding cannot be confined to a very narrow, specific temperature range; if the temperature is too high or too low, the molded part is prone to tearing or collapsing.

　　In our thermoforming production, many automotive products require thick‑sheet thermoforming, which enables us to manufacture them efficiently. Products made using this method boast high quality and are widely used across numerous industries. For instance, some electronic devices feature plastic housings that benefit from thick‑sheet thermoforming, allowing for both superior quality and an enhanced aesthetic appearance. Next, let’s examine the advantages of thick‑sheet thermoforming.

　　1. Thick-sheet thermoforming It boasts excellent resistance to deformation. Compared with other high-hardness metals, it is not only more cost‑effective but also offers superior electrical insulation. Applying this technology to the production of 4S‑store vehicle emblems can both reduce manufacturing costs and enhance the emblems’ durability; moreover, its outstanding deformation resistance helps cut transportation and packaging expenses.

　　2. In the thermoforming industry, thick-sheet thermoforming is produced through a series of manufacturing processes. During this process, aesthetic designs are developed to enhance the visual appeal of the product—for example, 4S‑store car logos—thereby boosting automobile sales.

　　3. Thick‑sheet thermoformed products are lighter in weight, making them easier to transport. Moreover, for large‑volume orders, production and delivery can be completed within a short timeframe, effectively addressing the drawbacks of traditional manufacturing processes, which are often cumbersome and time‑consuming.