Industrial Applications

Recommended by ASTM standards, Tedlar® films bring excellent corrosion and chemical resistance to pipe jacketing, as well as stable emissivity to maintain desired surface temperature. Tedlar® exhibits chemical resistance superior to any coil coating on the market, thanks to the film structure and PVF polymer properties. In decades of real-world applications, Tedlar® remains looking brand new in applications in highly corrosive locations, such as inside chemical plants or coastal areas. 

• Tedlar® meets or exceeds ASTM standards C1423-21, C1729-21, C1767-21 for Pipe Jacketing applications. 

• High emissivity value of Tedlar® keeps the pipe jacketing surface temperature close to ambient. For cold liquids, it keeps pipe temperature above the dew point to avoid corrosion-causing condensation. For hot, it keeps pipes below burning temperatures for worker safety. Tedlar® may enable a reduction in insulation material required.

• Tedlar® keeps pipes looking clean by providing long-lasting protection to the pipe jacketing from precipitation, ultraviolet radiation, and potential abrasion caused by blowing sand. Additionally, its hydrophobic and impermeable nature make Tedlar® excellent in stain and dirt resistance. Tedlar® film does not support the growth of mold and mildew, even in damp conditions.

DuPont™ Tedlar® high temperature and chemical resistant properties make it ideal for use in high voltage electrical power applications.

Release Films

The properties of DuPont™ Tedlar® release film make it ideal for use in the curing process of demanding high voltage electrical power applications. These include large turbine generators used in winding/stator insulation with epoxy-mica and epoxy-glass compounds.

Tedlar® release films are designed to contain resins during the autoclave curing process and have excellent anti-stick properties for both epoxy-blend insulations and high temperature autoclave fluids, which facilitate removal. 

Protective Films

Tedlar® is also used as a protective overwrap in large conductor insulation systems such as those used in downhole cables and oil-well power cables. It is ideal for these applications because of its excellent high temperature capability combined with chemical resistance in harsh environments. 

DuPont™ Tedlar® release films help provide an ideal release for fiber-reinforced polymer (FRP) and carbon-fiber-reinforced polymer (CFRP) composites.

With Tedlar® release films, the molds of parts and linings are protected and have ability to stay in place during curing and processing under temperature and pressure.

Reduce manufacturing costs

Tedlar® release films help reduce manufacturing costs in multiple ways. With an excellent release from resin systems, the need for wet-applied release additional agents is eliminated. Also, with a matte finish and a high level of surface quality, manufacturing steps, such as sanding, are eliminated and rejection and re-work rates are greatly reduced.

Tedlar® release films also have the strength and formability to reduce finishing times and surface defects.

Typical applications include:

• Wind turbines
• Windmill blades
• Aviation parts
• Computers
• Electronics

DuPont™ Tedlar® PVF films are used in the production of wind turbine blades as both a release film and a protective surface. As a protective surface Tedlar® has the ability to resist weathering, moisture and UV rays, while also offering low drag to effectively keep surfaces clean. Tedlar® has demonstrated exceptional performance in marine/salt water environments.

As a Protective Surface

• Long-term durability
• Good abrasion resistance
• Excellent chemical and corrosion resistance
• Resistant to dirt accumulation and easy to clean

As a Release Film

• Excellent in release for thermoset blade manufacturing
• Clean release – no transfer of release material for fast finishing
• Temperature resistance to 180 °C cure cycles
• Good tensile strength for fast, complete peel
• 3-D conformability

Typical Applications

• Wind turbine blades – release and protective films
• Towers – protective films
• Nacelles – protective films

DuPont™ Tedlar® release films are ideal for transfer printing because they offer excellent printability and release cleanly from rubber and metal tubing during steam curing of rubber hoses and fan belts.

Tedlar® films can retain toughness through aggressive cycles, and offer excellent thermal stability to resist embrittlement and degradation at processing temperatures up to 185°C (365°).

For many companies, Tedlar® films have become the material of choice over triacetate and other materials because of their ability to withstand moisture and higher temperatures.

Tedlar® films are available in all popular transfer printing sizes, including nominal thicknesses of 1 mil, 1.5 mil and 2.0 mil and widths up to 72 in.

Tedlar® outperforms competition with optimal balance of high temperature capability, conformability, toughness and release from adhesives for PCB lamination – contains no silicone.

DuPont™ Tedlar® release films provide outstanding release from acrylics, phenolics and epoxies used in the PCB industry. Tedlar® films have excellent balance, high temperature capability, conformability, toughness and release from bonding adhesives. Its excellent conformability ensures uniform pressure and controlled squeeze out in vias.

In the PCB industry, many users want to increase their press temperatures to reduce their production cycle in order to increase output. Tedlar® has been demonstrated to outperform many of the current release films used in this application, allowing the users to postpone expensive capital investment for new press capacity. In addition Tedlar® contains no silicone thus alleviating industry concern for potential migration to other substrates that come in contact with the release film which could cause downstream processing and end use issues.  

Tedlar® release films offer gas permeation resistance into and out of the sample bags, assuring sample integrity.

Tedlar® release films offer gas permeation resistance into and out of the sample bags, assuring sample integrity. Because Tedlar® is chemically inert, it will not react with or alter the composition of the wide range of collected chemicals in your sample. Teldar® film has been the industry gold standard for years due to superior inertness, impermeability and abrasion resistance.

Gas sampling bags made of Tedlar® PVF film are recommended in many US EPA methods including TCLP and methods TO-3 (VOCs), TO-12 (NMOC), TO-14A (VOCs), TO-15 (VOCs), ASTM D-5504 (reduced sulfur compounds) and a variety of atmospheric gas methods. Tedlar® release films are rated for continuous use from -72°C to 107°C (-98°F to 225°F).