Agfa’s ‘UNIQOAT’ is a single layer backsheet with high reflectivity

UNIQOAT as a mono-backsheet that eliminates the cost of a lamination adhesive and of managing a complex mix of lamination films from a variety of suppliers. Image: Agfa

Agfa Specialty Products has introduced ‘UNIQOAT,’ its next generation of polyester-based backsheet product. UNIQOAT eliminates the risk of backsheet delamination as it is manufactured as a single layer backsheet and achieves a level of reflectivity. The new product was showcased at SNEC 2017.


This article requires Premium SubscriptionBasic (FREE) Subscription

Unlock unlimited access for 12 whole months of distinctive global analysis

Photovoltaics International is now included.

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Unlimited digital access to the PV Tech Power journal catalogue
  • Unlimited digital access to the Photovoltaics International journal catalogue
  • Access to more than 1,000 technical papers
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

In the design of a PV solar module, one of the performance targets is the maximization of the light capture by the cells. In a completed module about one quarter of the radiation is not reaching the cells and cannot contribute to the generation of electrical power. The sun rays that enter a module via the gap between the cells are lost for power generation unless the backsheet can reflect them to reach the cells. Today, the most used polyester-based backsheet structures feature two or three film layers that are laminated together using an adhesive component. Such laminate structure is the weakest link in a solar module because the adhesion strength between its layers is far lower than the bonding strength between the other components in the module.


Agfa’s UNIQOAT backsheet achieves a level of reflectivity that is probably the highest in the market today and thereby offers increased power output of solar modules, according to the company. By design UNIQOAT eliminates the risk of backsheet delamination because it is conceived and manufactured as a single layer backsheet. During the extrusion process the hydrolysis and UV resistant polyester is surface-modified to face the challenges to which it will be exposed and to actively contribute to more reliable and durable solar modules and offers the potential for significant cost reduction. 


PV module lamination.


UNIQOAT as a mono-backsheet that eliminates the cost of a lamination adhesive and of managing a complex mix of lamination films from a variety of suppliers. UNIQOAT backsheets are offered to the market in three product types depending on thickness and weathering properties: UNIQOAT 315, UNIQOAT XR 315 for extra reflectivity and UNIQOAT XR 330F for additional protection. Meets IEC requirements and the new IEC DTI.


April 2017 onwards.

26 November 2024
Málaga, Spain
Understanding PV module supply to the European market in 2025. PV ModuleTech Europe 2024 is a two-day conference that tackles these challenges directly, with an agenda that addresses all aspects of module supplier selection; product availability, technology offerings, traceability of supply-chain, factory auditing, module testing and reliability, and company bankability.

Read Next

May 24, 2024
Singapore-headquartered solar manufacturer Maxeon has failed to sue fellow manufacturer Aiko Solar over alleged solar technology patent infringement.
May 24, 2024
Indian solar installations increased by over 400% in the first quarter of 2024 to the highest quarterly deployment levels in its history.
May 24, 2024
Quarterly reports from China’s big-five PV module producers highlight the challenges PV manufacturers face in maintaining profitability.
May 23, 2024
The flurry of recent tariff changes for solar imports to the US is likely to make products from Southeast Asia less attractive to buyers, according to renewables analysis firm Clean Energy Associates (CEA).
May 22, 2024
Singapore-headquartered solar manufacturer Maxeon has received a notice of non-compliance from the Nasdaq stock exchange for failing to file its financial statements on time.
May 21, 2024
Major Chinese solar manufacturer JinkoSolar has released a 2,000 volt solar module after receiving technological qualifications from tech certification firm UL Solutions.

Subscribe to Newsletter

Upcoming Events

Upcoming Webinars
May 29, 2024
11am (EDT) / 5pm (CEST)
Solar Media Events
June 4, 2024
London, UK
Upcoming Webinars
June 11, 2024
3:00 PM (BST) / 4:00 PM (CEST)
Solar Media Events
July 2, 2024
Athens, Greece