Politubes has developed the know-how and expertise required to manufacture high-performance films, designed to meet the most demanding technical requirements of advanced industrial sectors.
The core technologies applied include corrugation, embossing, creping and heat-setting — processes that modify the surface properties and the mechanical behavior of the films, enhancing their functional performance.
Politubes is also specialized in the production of release films used as process aids in the manufacturing of tires. Key products include:
- POLINET: a reinforced multilayer polyester film with a special mesh. The Polyester – reinforcement grid – Polyester structure, coupled and embossed, provides excellent release properties. It is used as an interleaving film for rubber plies during pre-vulcanization storage.
- POLIREL: embossed polyester and polyethylene film offering outstanding release performance, used as an interleaving material in the tire industry.
- POLIWAVE: corrugated polyester film with superior gripping properties, applied in the wrapping of telecommunication, data, and power cables.
- POLITHERM: heat-set polyester film for various industrial applications, including membrane switches.
The Politubes R&D department is committed to listening to your specific needs and delivering innovative, customized solutions.
Politubes supplies a comprehensive range of release and interleaving liners designed for the rubber and elastomer industry. These liners are specifically used for wrapping and separating rubber compounds prior to the vulcanization process, ensuring maximum process efficiency.
In response to market needs, we have developed POLINET, an innovative release liner with outstanding tear resistance, excellent mechanical properties, and superior release performance. It is the ideal solution for applications requiring a stiffer, more durable interleaving liner.
Technical Features of POLINET:
- Multilayer polyester-based film, internally reinforced with a high tear-resistant grid.
- Embossed surface treatment to further enhance release properties.
- Rigid structure ensuring dimensional stability and consistent performance.
Key Benefits for the Rubber and Tire Industry:
- Excellent release properties, preventing compound deformation and preserving surface integrity.
- Improved tire quality, ensuring flawless shapes and surfaces without wrinkles or defects.
- Reduced downtime and scrap rates, leading to higher productivity and lower hidden costs.
- Long service life and outstanding mechanical and tear resistance, allowing reuse up to 20–25 times longer than conventional films.
- Lower overall production costs, thanks to extended durability and ease of repair.
- No polluting residues, fraying, or clogging, ensuring a clean and efficient process.
- Eco-friendly solution, minimizing disposal costs and reducing environmental impact.
The R&D Department of Politubes is available to support customers with tailored and innovative solutions.
