What is a Preform?

A preform is a polymeric and plastic product made from polyethylene terephthalate (PET). Preforms are the initial state of PET plastic bottles presented in the form of small laboratory test tubes that include a threaded neck and body, available in various sizes and openings. Preforms are categorized into long neck, short neck, and normal neck types, each with different dimensions and sizes used for various products. Preforms can vary in weight from 10 grams to 750 grams, depending on the volume and final shape of the desired bottle. Applications of this product include mineral water bottles, edible oils, fruit juices, and medicinal uses.

Characteristics of Preforms

Biodegradability: Due to the use of polyethylene and its various derivatives, this product is recyclable and biodegradable.

High Physical Resistance: This feature provides resistance during transportation, works as an adequate barrier to prevent the passage of contaminants and dust into the final bottle, and, most importantly, makes the blow injection process easier without degradation during injection.

Easy Handling: While having a significant thickness, it is also lightweight and occupies less space during transportation.

PET Preform Neck Types

They have various models such as PCO 1810, PCO 1881, Alaska, 30/25, and 28mm Neck. Each of these necks is designed for different applications such as bottled mineral water, cooking oil, carbonated drinks, and detergents.

Short Neck: This product is produced with a shorter neck size but a larger opening space, usually used to facilitate use and enhance the aesthetic appeal of the product.

Long Neck: The necks of long preforms are designed for bottles with a high capacity. The greater neck length helps in producing bottles with thicker walls and a more robust structure. This design is suitable for high-volume products and luxury brands, which, in addition to an attractive appearance, have greater stability and safety.

Standard Neck: This model of the product is usually produced in sizes 28, 29, and 30. Their application is for specific uses of products that require a proper seal between the cap and the body and prevent leakage of the liquid inside the bottle.

Custom Neck: Manufacturers may have a specific size in mind that does not fit other standard options, and they need preforms to be produced in their desired size.

FAQ

How is the wholesale price of PET preform calculated?

The wholesale price of this product depends on factors such as the weight, neck type (Long Neck or Short Neck), clarity, and bulk order. High-volume orders typically result in lower unit prices, and special discounts are considered for wholesale purchases.

How can one purchase PET preform for water bottles?

To purchase this product for water bottles, you can refer to reputable manufacturers in the plastic packaging sector. Choosing the right neck type (PCO 1881 or 1810) and appropriate weight for mineral water bottles is very important. Most online shops and factories provide this product for direct sale.

What is the price of PET preform today in the market?

The price of this product is determined based on fluctuations in the raw material market for PET. Typically, prices are updated weekly or every 3 days.

How much does a PET bottle preform weigh?

It depends on the volume of the final bottle. For example:

– A 500ml, typically weighs between 18 to 25 grams.

– A 1-liter, ranges from 30 to 40 grams. The exact weight will depend on the mold design and customer requirements.

What are the raw materials for producing PET bottle preforms?

The raw material for this product is bottle-grade PET resin pellets. These materials are typically clear, odorless, and pressure-resistant, used in the injection molding process.

What is a Long Neck and what is its application?

A Long Neck is a type with a taller neck section, used for bottles containing carbonated beverages and products that require a tighter cap. These models generally enhance strength and prevent leakage.

How much does a 500ml preform weigh?

The standard weight typically falls within the range of 18 to 25 grams. The final weight depends on the mold design and intended use (simple drink, carbonated drink, mineral water). Selecting the appropriate weight significantly impacts the quality and production costs of the bottle.

how much is pet preform price per kg?

The table below shows the various specifications of this product, which you can choose based on your product needs and the information provided. Upon customer request, we can supply this product in different shapes and sizes. Please contact us via this link for assistance.

If you need consultation in selecting or ordering your desired product, our team at SupraPol is ready to assist you throughout this process.