DUN-SOLAR™ PPE+ Backsheets

Polyester Photovoltaic 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 PPE+ backsheet is a proven and reliable backsheet component used by many solar module manufacturers. DUN-SOLAR PPE+ backsheets have a high performance three layer non-fluorinated construction with a hydrolysis resistant and UV stable PET finish layer applied to a polyester core and a PE laminated structure. This polyethylene-based product provides excellent performance in a non-fluorinated film with outstanding UV and hydrolysis resistance for superb electrical, physical, barrier and thermal properties.

DUN-SOLAR PPE+ 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 PPE+ 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 PPE+ Construction

DUN-SOLAR PPE+ is a multi-layered all-polyester 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 - hydrolysis resistant and UV stable film layer
  • Core - Polyester (PET) core
  • Inner Layer - Adhesion-promoting PE film
  • Adhesives to join the layers

This construction is specifically engineered for use in photovoltaic backsheet applications requiring superb electrical, physical, barrier and thermal properties. The outer PET layer and the adhesion promoting film provide high white degree and high reflective properties.

DUN-SOLAR PPE+ Technical Properties Summary

  • UV Stability - no visible change after a high performance UV-Stress testing (IEC 61215)
  • Superb electrical properties
  • Superb thermal properties
  • Superb barrier properties
  • High white degree
  • High reflective properties
  • Shelf life - 12 months (maintained in original packaging) at 59-77°F (15-25°C) and 30-70% relative humidity
  • Four different standard colors available: white, green, red and black; custom colors on request

Benefits of Using DUN-SOLAR PPE+

  • 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 PPE+ Backsheets

Please Contact Us for more information on all polyester construction DUN-SOLAR PPE+ backsheets for solar module manufacturing.