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PET as a material

Frequently Asked Questions Our expert

Polyethylene terephthalate (PET) belongs to the family of polyesters and is a transparent, shatter-resistant and lightweight thermoplastic plastic. It combines many advantages of glass, but is significantly more robust and saves transport costs due to its low weight.

PET is physiologically safe and therefore ideal for food and beverage packaging. Cosmetic and pharmaceutical manufacturers also rely on PET, which is also recyclable and highly formable—from thin films to sturdy bottles.

PET is suitable for weak acids, bases, salt solutions, alcohols, fuels, fats and oils. It is unsuitable for strong acids, chlorinated hydrocarbons, strong bases or hot liquids.

Thanks to its clarity and stability, PET is valued in many industries—as a safe, attractive, and functional packaging solution for liquid and powdery products.

Frequently Asked Questions

PET stands for polyethylene terephthalate—a thermoplastic material from the polyester family. It is transparent, lightweight, break-resistant, and used in many industries, especially in the packaging industry.
PET combines many of the advantages of glass, such as transparency and stability, but is significantly lighter and more break-resistant. This saves transport costs, minimizes breakage damage, and makes it more convenient for the end customer.
One disadvantage of PET is that it can deform when it comes into contact with hot liquids. It is also not suitable for use with strong organic or oxidizing acids, chlorinated hydrocarbons, or strong alkalis.
Yes. PET does not release any harmful substances into the contents and is considered physiologically harmless. That is why it is often used for beverage, food, and cosmetic packaging.
PET is a special case when it comes to printing and is difficult to print on.
PET is used in various industries. It is often used to manufacture bottles for the food and beverage industry, the pharmaceutical industry, the cosmetics industry, and other industries. PET is also used for aroma protection films. Its physiological safety is particularly important for the food and pharmaceutical industries.
PET packaging for beverages is particularly attractive due to its low weight. It makes transport easier for consumers and makes the product more appealing by offering greater convenience. Transparent PET packaging is also used in marketing by the food and cosmetics industries, as transparent packaging is considered more attractive to consumers.
PET has its own synthetic resin identification code and is relatively easy to recycle. This makes it a more environmentally friendly plastic compared to many alternatives. It can be collected and recycled, contributing to a more sustainable packaging solution.
PET is suitable for weak acids, alkalis, salt solutions, alcohols, fuels, fats, and oils, among other things. It is not suitable for strong organic or oxidizing acids, chlorinated hydrocarbons, strong alkalis, or hot liquids.
PET is often molded into bottles using injection or stretch blow molding processes. Thin-walled bottles are usually used as disposable packaging, while thick-walled bottles are used as reusable packaging.
The crystal-clear transparency makes the contents and fill level visible, which is considered to promote sales, especially in the food and cosmetics industries—provided that the contents are not sensitive to light.