engineering the solar age - Suppliers for Photovoltaics

Backsheet laminates for PV modules

The KREMPEL-GROUP is a leading global system supplier in the world of materials. With electrical insulations, solar material, composites, electronic materials and special laminates, we are one of the world market leaders in many areas. Our production facilities operate in Germany, England, Poland as well as in China. As a family-owned enterprise, we are an independent producer of high-grade semi-finished products: High tech made by KREMPEL-GROUP.

The product family AKASOL^® was specially developed as backsheet for photovoltaic modules from combinations of various polymer films (PVF, PVDF, ETFE, PET, modified PET). Versions with aluminum foil as moisture barrier or copper foil for the interconnection of back-contact solar cells are also available.

A key role is taken by fluoropolymer films, for example TEDLAR^®-PVF film and KYNAR^®-PVDF film. They are distinguished by excellent mechanical, electrical and chemical properties as well as extraordinary weather resistance. AKASOL^® hence provides an effective shield against UV radiation and moisture over the decade-long service life of the PV modules.

AKASOL^® backsheet meets the requirements of IEC 61730-1 and IEC 60664-1. The products are typically acknowledged as “UL Recognized Component” (File No. QIHE2.E312459). Extensive internal and external testing ensures product capability and quality and compatibility with both junction box adhesives and encapsulants such as EVA, PVB and TPU. As todays state-of-the-art materials are certified for a system voltage of 1000 V. As a basic the KREMPEL production is ISO 9001 and ISO/TS 16949 certified. Since May 2011 AKASOL^® PVL 2-1000 V & Primer is the first product with TÜV.com recognition and more products are to follow.

Looking into the future, KREMPEL is investing in both production equipment for growth and efficiency, and research into the continuous improvement of products, focusing on cost road maps in cooperation with key customers.

Based on almost 20 years of experience in manufacturing and sales of backsheet solutions the KREMPEL AKASOL^® portfolio includes a wide variety of products with solutions for Building Integrated PV (BIPV) in transparent and red versions.