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DUN-SOLAR™ PPE+ 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. 
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 by incorporating a high gloss surface to increase solar reflectance
- Easily cleanable
- Chemically resistant
- Very strong "tear" bond to EVA
- Excellent stability under damp heat and freeze-thaw conditions
- Superior bond strength - extended damp heat testing shows superior retention of bond strength for all layers of the laminate
DUN-SOLAR Credentials
DUNMORE Corporation is one of the world's leading manufacturers of photovoltaic backsheets, with credentials that include:
- DUN-SOLAR PPE+ backsheets are UL recognized under file QIHE2, Photovoltaic Polymeric Materials-Component.
- All DUN-SOLAR backsheets are certifed by TÜV for Partial Discharge. Their low shrinkage in vacuum lamination provides bubble and wrinkle-free modules.
- DUNMORE's ISO 9001:2008 certified manufacturing facilities ensure that products and systems meet the high quality standards required by the photovoltaic industry.
Contact DUNMORE for DUN-SOLAR PPE+ Backsheets
Please Contact Us for more information on all polyester construction DUN-SOLAR PPE+ backsheets for solar module manufacturing.
