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Thermoplastics films have been used in the manufacture of release liners for many years. Filmic release liners have found many applications in a wide variety of industries and end-uses, where their properties may be more appropriate than a paper based release liner.

The majority of filmic liners are based on three families of thermoplastic polymers – Polyethylene, Polypropylene and Polyethylene Teraphthalate. However, there is enormous potential for customising both the polymers and the film production processes which has resulted in the proliferation of a daunting range of variants and properties to choose from.

Cotek offer a range of filmic release liners, based on the three families of thermoplastic polymers, to compliment the range of paper based release liners. They are similarly available with one or two-side silicone coatings and with a comparable range of controlled release properties.

A wide range of film thicknesses, colours and properties are available to suit the customers application, and most films can be backprinted or printed before siliconising.

What is HDPE film liner?

The most popular quality for release applications is blown, high density (HD) polyethylene film. The more linear, crystalline, ethylene monomers are favoured as they produce a film with increased rigidity, strength and stiffness, compared with low density (LD) polymers. High density polyethylene also offers a higher service temperature of up to 130°C.

Although these films can be produced on conventional packaging film extruders, the polymers must be of consistent high quality to ensure satisfactory silicone coating performance.

Cotek offer siliconised high density polyethylene (HDPE) films in a wide range of thicknesses and colours, plus semi-translucent/milky white.

Our HDPE film liners are most commonly used for the following applications:

If you’d like to find out more about our HDPE film liners and how we can help your company to grow and meet production targets, get in touch with our friendly sales team today.

Learn More about HDPE Products

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Our expert team are waiting to hear from you. Get in touch with Cotek Papers today to find out how we can help deliver high quality release liners for your product or organisation.

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