DuPont™ Tedlar® solar PV film for PV backsheets have got you covered
For over 25 years, DuPont™ Tedlar® PVF film has been viewed as the industry leader for providing durable, weather-resistant backsheets for photovoltaic (PV) modules.
All Tedlar® films are made from polyvinyl fluoride so they share outstanding toughness, durability and 25+ year weather withstanding performance.
DuPont™ Tedlar® offers two product types: PV2000 Series and PV2100 Series films. Both types are commercially available and are currently being used in solar PV modules throughout the market and across regions. Each product delivers the high performance properties and standards that Tedlar® is known for within the industry.
The industry prefers Tedlar® as the backing sheet due to its unique properties that offer photovoltaic modules long term, superior protection against the elements:
- UV resistance
- Moisture barrier
- Mechanical properties
- Strength and durability
- Resistance to weathering
- Electrical insulation
- UL recognized
Backsheet Laminate Composite
Increased lifetime of photovoltaic (PV) modules is of upmost interest to the industry to reduce the cost of solar electricity. Besides the solar cell string itself, the encapsulating system is the component with the highest responsibility for the lifetime of a PV module.
The backsheet is normally made as a laminated film composite, the most common being a trilayer structure of Tedlar®/Polyester/Tedlar®, also called TPT™. This structure allows the fluoropolymer to protect both sides of the polyester from photo-degradation. The Tedlar® film is tough, photostable, chemically resistant and unaffected by long term moisture exposure. It is also one of the few fluoropolymers that can be readily pigmented.
Proven Perfomance of Tedlar®
Michael DeBergalis, Technology Fellow, DuPont Photovoltaic Solutions, discusses backsheet material testing at DuPont.