DUN-SOLAR™ TPE Backsheets

DUNMORE is one of the world's leading manufacturers of photovoltaic backsheets used in the production of solar panels. DUN-SOLAR™ backsheets are available in various constructions, and the DUN-SOLAR TPE backsheet is a proven and reliable backsheet component used by many solar module manufacturers. DUN-SOLAR TPE backsheets have a high performance three layer construction with a Tedlar® polyvinyl fluoride (PVF) layer applied to a polyester core and a PE film for superb electrical, physical, thermal and barrier properties.

DUN-SOLAR TPE backsheets protect PV modules from UV, moisture and weather while insulating the electrical load of the modules, which can operate up to 1000 VDC. These DUN-SOLAR TPE capabilities are essential for functionality and longevity of the photovoltaic modules and safety of people who work with and near the PV module.

DUN-SOLAR TPE Construction

DUN-SOLAR TPE is a DuPont™ Tedlar®-based product. Tedlar® is traditionally well-regarded for its fluorinated film performance. DUN-SOLAR TPE is a multi-layered film lamination designed to be used as the backsheet for photovoltaic solar panels. It acts as a durable protective barrier for the electronic components found in solar panels. FPE Backsheet Construction Diagram

Construction includes:

  • Outer Layer - DuPont™ Tedlar® polyvinyl fluoride (PVF) film
  • Core - Polyester (PET) core
  • Inner Layer - Adhesion-promoting PE film
  • Adhesives to join the core and inner layer

This construction is specifically engineered for use in photovoltaic backsheet applications requiring superb electrical, physical, thermal and barrier properties.

DUN-SOLAR TPE Technical Properties Summary

  • UV Stability - no visible change after a high performance UV-Stress testing (IEC 61215)
  • Excellent electrical properties
  • Superb thermal properties
  • Excellent barrier properties
  • Fluorinated layer applied to PET film
  • Shelf life - 12 months (maintained in original packaging) at 59-77°F (15-25°C) and 30-70% relative humidity
  • Three standard colors available: white, black and grey; custom colors on request

Benefits of Using DUN-SOLAR TPE

  • Improved module efficiency through optimized reflectance characteristics
  • Excellent stability under damp heat and freeze-thaw conditions
  • Superior bond strength across environmental extremes
  • Superb "tear" bond to EVA
  • Easily cleanable
  • Chemically resistant

DUN-SOLAR Credentials

DUNMORE Corporation is one of the world's leading manufacturers of photovoltaic backsheets, with credentials that include:

Contact Us for DUN-SOLAR TPE Backsheets

Please Contact Us for more information on DuPont™ Tedlar®-based DUN-SOLAR TPE backsheets for solar module manufacturing.