Industry-leading protection solutions – for a wide range of surfaces and applications.
Our Co-ex Cast protective films are completely tailor-made
POLIFILM not only develops the formulations for the multi-layer cast films but our know-how also ensures the right adhesive components within our raw materials ensure perfect adhesion every time. In-house knowledge, in-house development, in-house compounding.
Co-extruded protective films
Bespoke, multi-layer Cast films with integrated adhesive layer
Our films are produced by extruding mainly PE granulates. We use the so called cast or flat filmextrusion process. The granulate is melted and homogenised in an extruder. The melt is then transported by pressure to the nozzle at the die which is then forced out and poured directly onto a chill roll. The resulting film is then removed from the chill roll and wound into a core.
In addition, our protective films are manufactured using the co-extrusion process in which different polymers are combined to form a multi-layer film. During this process, we use the different mechanical and physical properties of the polymers and equip the individual film layers with very specific properties tailored to the customers’ needs. At the same time, the tackiness of the film is introduced directly into the protective film as a separate layer.
For this purpose, several extruders feed a variety of different raw materials, including a melted adhesive component into one single die. The geometry of the die is perfectly matched to the feeding extruders, the consistency of the melted raw materials, the pressure and the speed of the feed. The result: a high quality three to five layer protective film with integrated adhesive layer equipped with customised adhesive and film properties.
Optimum surface protection
Application specific extruded film
customed adhesive strength
We cover the entire adhesion spectrum from low to very high. With our in-house developed adhesive raw materials, special formulations and additional corona treatment, we can precisely adjust the adhesive properties of the protective films to the respective application and customer requirements.
tailor-made FILM PROPERTIES
Whether excellent stretchability, low restoring forces, high tear or abrasion resistance or resistance to moisture and chemicals is required, with our unique formulations, we can adapt the mechanical and thermal properties of the protective films individually and precisely to meet your processing requirements.
HIGH QUALITY HOMOGENOUS FILMS
In the production of our co-extruded protective films, we use rigorous quality assurance measures for raw materials and film extrusion, thereby ensuring the films are extremely clean and free from inhomogeneities and gels.
100% RESIDUE FREE REMOVAL
The adhesion layer of our cast solutions is produced by co-extrusion and is therefore an integratedpart of the film. In this, undesireable glue residues on the substrate are avoided when the protection film is removed. The film can be removed cleanly and safely without tearing or leaving any residues.
Specialist film solutions
Thermoforming plastic sheets
For the special requirements of thermoforming a variety of plastic sheets, our Co-ex specialists have developed unique protective films. These high quality films offer maximum flexibility and excellent elongation properties, whilst guaranteeing a correspondingly high level of adhesion both before and during thermoforming. After thermoforming the adhesive properties are reduced to a lower level for easy, efficient removal especially around intricate shapes.
New Coex-Cast film covers virtually all glossy plastics
Special co-extruded protective film with polyolefin-based adhesive formulation ensures controlled, optimal adhesion to PMMA, PET, polycarbonate and polystyrene. More and more manufacturers of plastic panels are adopting a strategy of diversification. They are using a range of different polymers in order to reduce their dependence on individual raw materials. The drawback, until now, was that […]
POLIFILM PROTECTION continues to expand its range of next generation specialist film solutions. Their experts within have developed a coextruded protective film for thermoforming polycarbonate sheets that can withstand even a 14 day pre-drying process at temperatures of around 100 °C. The application is unique in the market and makes the manufacturing process of products […]
POLIFILM PROTECTION; a leading developer and manufacturer of surface protective films, is the first worldwide provider to offer protective films in widths of 3220 mm. These are the only films in the market which can effectively protect the wide glass sheets commonly used in the glass industry, using just one width of film in a […]
Our co-extruded protection films are fully recyclable. As production is in one single process these films use less resources during production and as such are considered environmentally friendly
OUR APPROACH TO SUSTAINABILITY
With a variety of measures in place, we ensure that our products and our production are becoming increasingly more environmentally and climate friendly, whilst at the same time supporting our customers in improving their carbon footprints too.
