FERON Solar backsheets & frontsheets. New thinking needs new thinkers

Transcription

1 FERON Solar backsheets & frontsheets New thinking needs new thinkers

2 FERON plant II Düren, Germany 2

3 Doing good things better Anything but superficial Knowledgeable, innovative and thorough customers that have chosen to use upgraded material from FERON know that we take the quality and optimal processing options of our products very seriously. It is precisely the customer service provided by FERON that has made us the market and technological leaders in selected segments of the paper, plastic and metal film coating industry. We continue to face the new challenges of our customers with enthusiasm and skill, and are anxious to support them in their search for improvements. Through the development of customized film solutions for more efficient production processes and optimal results, we ensure our customers promise of quality and help them to be successful. A tradition of creative solutions S ince FERON was founded as a paper bag manufacturer in 1934, we have continuously improved our technologies, products and so our businesses units. Today, we are specialized in the most sophisticated coating and laminating processes for paper, plastic and metal films. We will continue to meet all future challenges with enthusiasm and to create innovative ideas that enable our customers to find creative solutions. The business units of FERON are: FERON FERON Solar Solar FERON FERON Print Print FERON FERON Decor Decor FERON FERON Protect Protect frontsheets backsheets printable coated films printable laminated films (paper, PET, PP etc.) aluminum surfaces aluminum edge foils stainless steel foils copper foils texturing release foils magnetic board foils furniture foils packaging pharmacy construction/ insulation technical applications 3

4 Meeting the future with experience Less is simply more Reduced material use, minimized error sources, reduced production expenses with equal performance levels As market and technological leaders for high quality coated and laminated plastic and metal films as well as for paper in some segments, we are well acquainted with these types of challenges. We have garnered experience from other product areas and applied it to photovoltaic systems, to optimize existing product technologies and set new standards for innovative solutions. Photovoltaic products from FERON: backsheets halogen-free neox CPC and CPPC halogen-based standardx TPC and TPT frontsheets halogen-based tranlux EC Mission protective shield: FERON backsheets The main purpose of a backsheet is to protect all the components of a solar module for its entire lifespan and to guarantee energy flow without losses. FERON backsheets optimally protect the active elements from environmental influences, particularly against moisture, UV radiation, the effects of chemicals, and mechanical damage. Of course, the opposite is also true, as the environment must also be protected against the active electric elements of the solar module. The crystal-clear alternative: FERON frontsheets W e have been producing ETFE-based frontsheets for crystalline and thin-layer modules for more than 15 years. Compared to the glass normally used, they are not only lighter but also easier to process. A high level of light transmission also gives the active solar layers a higher level of efficiency. The highlytransparent FERON frontsheets also do not show any alternation by weathering. They show long-term resistance to influences such as UV radiation and moisture. 4

5 Ideas that stick HelioX PV coating technologies HelioX PV inside T he HelioX PV inside technology provides perfect UV protection for the PET film of a FERON backsheet. It is an excellent adhesion promoter to encapsulants (e.g., EVA) with very high bonding strength, for which the use of hot melt adhesive films (e.g. PE/EVA layers) as an integrated component of the backsheets is omitted. In this way, even with vacuum lamination, the thickness of the backsheet is guaranteed to be even a decisive advantage which makes a noticeable difference in the safety and quality of the final product! HelioX PV outside The HelioX PV outside, especially designed for outdoor coatings, has outstanding weathering resistance for the protection of the inside of the PET film. Extensive tests have also shown that HelioX PV protects the PET film equally well against aggressive chemical substances such as ammonia, as well as mechanical damage, such as scratching. Perfect prerequisites for an improvement in quality and the safety of your solar module. HelioX PV adhesives The adhesive technology used in FERON HelioX PV adhesives provides excellent bonding of all layers in multi-layer PV backsheets. It withstands the high strain requirements and creates long-term and environmentally stable bonds with high temperature resistance. HelioX PV adhesives already comply with the new PV standards for frontsheets and backsheets as well as the ageing requirements before and after the damp heat test. 5

6 Applied technology inside - no hot melt films (e.g., PE/EVA) as an integrated component of the backsheet outstanding UV protection outstanding adhesion with bedding - - inside - optimal steam penetrability protection against mechanical damage effective chemical resistance (e.g., against ammonia) outstanding adhesion with junction box adhesives halogen-free perfect weather resistance inside outside high aging resistance high temperature res neox halogenfrei inside outside FERON Solar backsheets & frontsheets Product portfolio HelioX PV sheets frontsheets backsheets Product group translux halogen-based standardx halogen-based neox halogen-free Product name EC TPT TPC CPPC CPC Applied technology inside adhesive inside - adhesive inside outside adhesive inside outside - - adhesive adhesive adhesive - CPC halogenhaltig halogenhaltig Produktgruppe translux standardx Innovative technologies HelioX PV name EC TPT TPC CPPC Product HelioX PV inside HelioX PV outside HelioX PV adhesive halogen-free outstanding UV protection outstanding bonding to encapsulant no hot melt films (e.g., PE/EVA) as an integrated component of the backsheet optional individual color selection halogen-free perfect weatherbility outstanding adhesion with junction box adhesives effective chemical resistance (e.g. against ammonia) optimised water vapour transmission rate protection against mechanical damage optional individual color selection exceptional interlayer bonding high ageing resistance high temperature resistance transparent frontsheets backsheets optional individual color selection optional individual color selection materials The properties of all HelioX PV backsheets: transparent weathering and temperature resistant very good bonding (outward) with junction halogen-free exceptional film laye outside PV inside PV HelioX HelioX HelioX PV very good mechanical properties box adhesives outstanding insulating properties good scratch resistance excellent bonding (inward) to encapsulants optimal water vapour transmission rate without the use of integrated hot melt films outstanding thermal dimension stability (e.g. PE/EVA) very good processing options high chemical resistance (e.g. against ammonia) recyclable 6

7 The mono film solution - a new dimension HelioX PV backsheets neox CPC bp+ap H eliox PV backsheets neox CPC are new monofilms which offer equivalent resistance standards as well as other substantial benefits compared to standard, established backsheets. During production, two of FERON s coating systems are applied to the high-performance PET film for electric insulation. Waiving the use of Tedlar or other halogen-based films makes the often problematic lamination process unnecessary. Due to their one-layer construction, CPC backsheets no longer have any physical weak spots as can occur with lamination bonds. The color can be selected individually and recycling is safe and poses no problems. The properties of neox CPC backsheets: mono film, no weak spots due to laminating, no interlayer delamination possible optional individual color selection environmentally friendly without Tedlar, halogen-free up to 4,000 h damp heat stability (for ap quality) no release of hazardous hydrogen fluoride (HF) during thermal disposal form stability up to 250 C 7

8 Twice as good by the sheet: the double-film solution HelioX PV backsheets neox CPPC F or the benefit of our customer s production processes and out of an environmental consciousness, halogen-based components can be omitted in the processing of two-film backsheets, starting immediately. The new HelioX PV backsheets neox CPPC by FERON are innovative film laminates made of two high-performance PET films, which are laminated together and coated with HelioX PV inside und HelioX PV outside for a maximum increase in durability. The color of the backsheets can be selected individually and reprocessing poses no problems. Due to its 2-film construction, the backsheet has one less physical weak spot, which reduces the error quotient due to problems with lamination by 50%! The properties of neox CPPC backsheets: 2-film design, 50% reduction of lamination weak spots as compared to TPT backsheets optional individual color selection environmentally friendly without Tedlar, halogen-free no release of hazardous hydrogen fluoride (HF) during thermal disposal form stability up to 250 C transparent hydrolysis-resistant lamination with HelioX PV adhesive use of all HelioX PV technologies 8

9 Not ALL good things come in threes HelioX PV backsheets standardx TPC D ue to their high durability level and reliable processing qualities, most photovoltaic backsheets are still based on a two-layer Tedlar construction combined with a PET film (TPT). FERON has replaced the entire inner Tedlar film with the HelioX PV inside coating especially designed for this use, so that only the high-performance PET film and the one remaining Tedlar layer must be laminated together. The HelioX PV coating optimally protects against UV radiation and the material has outstanding adhesive qualities and bonding strength toward the encapsulants. The omission of the Tedlar layer is not a compromise, but a benefit! We offer these 2-film sheets to customers that don t completely want to forego the traditional Tedlar technology. The properties of standardx TPC backsheets: 2-film design, 50% reduction of lamination weak spots as compared to TPT backsheets optional individual color selection (inward) transparent hydrolysis-resistant lamination with HelioX PV adhesive 9

10 What is dear to some HelioX PV backsheets standardx TPT Of course, upon request, we also offer the classic 3-film sheet based on a high-performance PET film between two layers of Tedlar. A proven technology that the branch has trusted for more than 25 years. Manufacturers that use HelioX PV backsheets standardx TPT can be assured that the PET film is reliably protected against degradation by weathering with this design. An additional coating of Tedlar films to reinforce the durability is not necessary. The properties of standardx TPT backsheets: standard backsheet 3-film design, a high-performance PET film for electric insulation between two Tedlar films used successfully in solar modules for more than 25 years transparent hydrolysis-resistant lamination with HelioX PV adhesive 10

11 Way ahead of the game for 15 years HelioX PV frontsheets translux EC Our highly transparent HelioX PV translux EC frontsheets are sturdy and have excellent weathering- and UV-resistance. Also against external influences such as hail, fire, or chemicals, translux EC frontsheets provide outstanding protection. In addition, they are very tear- and impact-resistant and are given a practical easy-clean effect. It is not surprising that translux EC products have been used successfully in the PV market for more than 15 years! The properties of translux EC frontsheets: mono film ETFE frontsheet used successfully in solar modules for more than 15 years weathering and ageing resistant hardly inflammable easy-clean effect low water vapour transmission rate excellent adhesion promoter to encapsulants higher transparency than glass weight advantage compared to glass 11

12 Better than the norm F ERON HelioX PV sheets meet the IEC test norm safety requirements /-2 and , and the quality standard in accordance with IEC The sheets themselves and solar modules with our sheets have been certified by a variety of institutes. This also applies to the company of FERON, which is certified in accordance with DIN EN ISO norm 9001:2008. Climatic tests To test the durability of the films under extreme climatic conditions, a damp heat test, lasting 4,500 hours at 85 C and 85% humidity (IEC 61215, procedure 10.13) was conducted. The corresponding test modules made of glass, encapsulant and HelioX PV sheets showed no visible or functional signs of adverse effects. More details about the test series and certifications can be found in the technical data sheets. Further information about safety and environmental compatibility can be found in our safety information. Even the more intensive 48 hour pressure cooker test at 121 C and 1.21 bar with 100 % humidity caused no visible or technical signs of impairment. For the weathering test, the HelioX PV sheets were subjected to more than 8,000 hours of simulated weathering with xenon light radiation. The samples were also subjected to a color and gloss assessment as well as an adhesion test. No visible signs of change occurred. 12

13 Physical monitoring The mechanical stress to the HelioX PV sheets is very high both during manufacture of solar modules and in operation. Tensile strength and tear resistance as well as elongation at break and the adhesion to encapsulant must be guaranteed to meet the future requirements to backsheets and guarantee a long lifespan. They are tested before and after the accelerated ageing process. The shrinkage rate of HelioX PV sheets is 1 to 1.5% in machine direction after 30 minutes and 1% in the transverse direction at an assumed 150 C in the lamination process. This minimizes possible problems caused by high tension levels. HelioX PV sheets have excellent bonding properties with junction box adhesives and to encapsulants, as the T-peel test confirms. The level was 2 (junction box adhesive) and 3 (encapsulant) N/mm even after 1,000 hours in the damp heat test. Corresponding tests have also shown that the scratch and abrasion resistance of our sheets more than meet the high demands in terms of potential external damage during the course of their usage or installation. The effectiveness of the water vapour permeability of our HelioX PV sheets are demonstrated in a water vapour transmission rate test (WVTR) at 38 C and 90% humidity. Electric testing By creating an electric arcing to cause a dielectric breakdown on the sheet, the reliability of the quality and material strength of the sheets was verified, with a breakdown voltage of more than 20 kv. HelioX PV sheets are continuously tested by corresponding test institutes for their resistance to partial discharges. With no ill effects, the sheets can withstand a local electrical breakdown with a system voltage of more than 1,000 V. This fulfills the current technical requirements in their entirety and provides a high level of safety in terms of outside shielding and module safety. Chemical resistance Because frontsheets and backsheets are exposed to chemical aggressors, e.g. surface cleaning, the HelioX PV sheets are tested for the effects caused by a variety of chemicals. A piece of cloth soaked in isopropanol, MEK or acetone leaves behind no sign of damage to the surface of the sheets, even after repeated rubbing. During the course of assessments conducted at testing institutes, the 28 day test of HelioX PV samples in a defined environment containing ammonia also caused no negative effects, which is why the sheets are also suitable for use in agricultural and sewage treatment-related applications. 13

14 Consistently cooperative C ustomer-orientation is our mission. Customers who use our high quality technical materials for processing have justifiably high demands for cooperation. The long term partnerships that we maintain with our existing customers verify that we meet these demands. Because the demands we place on ourselves are very high, we play a responsible role in the IEC standardization committees working on the photovoltaic standards of today and the future. Together with associated experts from universities, testing and research institutes, we rely on what has been proven, to develop new ideas. Focus is placed on industrial applications. Of course, the highly developed products are subjected to corresponding practical tests to guarantee their quality and functionality under all circumstances. Take advantage of our experience and our reliability: cooperatively environmentally conscious and sustainable in terms of resource treatment quality-conscious innovative specialized reliable 14

15 Imprint Publisher Aluminium Féron GmbH & Co. KG Hammerbenden Düren Germany Fon: Fax: Mail: Web: Edition I/12 Concept, text, pictures and editing Aluminium Féron GmbH & Co. KG tsitrone medien GmbH & Co. KG, Köln Layout tsitrone medien GmbH & Co. KG, Köln

16 The mono film solution - a new dimension HelioX PV backsheets neox CPC bp H eliox PV backsheets neox CPC are new monofilms which offer equivalent resistance standards as well as other substantial benefits compared to standard, established backsheets. During production, two of FERON s coating systems are applied to the high-performance PET film for electric insulation. Waiving the use of Tedlar or other halogen-based films makes the often problematic lamination process unnecessary. Due to their one-layer construction, CPC backsheets no longer have any physical weak spots as can occur with lamination bonds. The color can be selected individually and recycling is safe and poses no problems. The properties of neox CPC backsheets: mono film, no weak spots due to laminating, no interlayer delamination possible optional individual color selection environmentally friendly without Tedlar, halogen-free up to 3,000 h damp heat stability no release of hazardous hydrogen fluoride (HF) during thermal disposal form stability up to 250 C Aluminium Féron GmbH & Co. KG Hammerbenden Düren / Germany Fon: Fax: Mail: info@feron.de Web:

17 Technical data: neox CPC bp encapsulant (not integrated) HelioX PV inside coatings ( 15 g/m 2 ) PET film (300 μm) hydrolysis performance: basic HelioX PV outside coatings ( 15 g/m 2 ) Unit Value Tolerance Standard Total thickness μm 315 ± 5 % ISO 4593:1993 Weight g/m² 450 ± 5 % internal Ageing resistance Weathering No visible changes concerning colour, gloss and adhesion after h, xenon test. DIN EN ISO Damp-heat test No visible or relevant functional changes (included encapsulant adhesion) after 3,000 h (average). The test was realized in laminated modules (glass/encapsulant/cpc backsheet). IEC (85 C, 85 % R. F.) Technical properties Tensile strength N/mm² 110 (MD) (TD) min ISO Elongation at break % 90 (MD) - 90 (TD) min ISO Encapsulant adhesion (Solutia Vistasolar ) initial 1,000 h damp-heat 2,000 h damp-heat N/mm 6 3 no visible change min T-Peel (IEC TC-82 WG2 NWIP sheets) Junction box adhesion (Adhesive DOW PV 804) initial 1,000 h damp-heat 2,000 h damp-heat N/mm 4 (cohesion PV804) 2 (cohesion PV804) no visible change min T-Peel (IEC TC-82 WG2 NWIP sheets) Heat shrinkage % 1.5 (MD) 1.0 (TD) max Water vapour permeability g/m² d 2.4 max ASTM D-1204 (150 C, 30 min) ASTM F-1249 (38 C, 90 % R. F.) Breakdown voltage kv 20 min IEC Maximum system voltage VDC 1,000 min IEC

18 The mono film solution - a new dimension HelioX PV backsheets neox CPC ap H eliox PV backsheets neox CPC are new monofilms which offer equivalent resistance standards as well as other substantial benefits compared to standard, established backsheets. During production, two of FERON s coating systems are applied to the high-performance PET film for electric insulation. Waiving the use of Tedlar or other halogen-based films makes the often problematic lamination process unnecessary. Due to their one-layer construction, CPC backsheets no longer have any physical weak spots as can occur with lamination bonds. The color can be selected individually and recycling is safe and poses no problems. The properties of neox CPC backsheets: mono film, no weak spots due to laminating, no interlayer delamination possible optional individual color selection environmentally friendly without Tedlar, halogen-free up to 4,000 h damp heat stability no release of hazardous hydrogen fluoride (HF) during thermal disposal form stability up to 250 C Aluminium Féron GmbH & Co. KG Hammerbenden Düren / Germany Fon: Fax: Mail: info@feron.de Web:

19 Technical data: neox CPC ap encapsulant (not integrated) HelioX PV inside coatings ( 15 g/m 2 ) PET film (300 μm) hydrolysis performance: advanced HelioX PV outside coatings ( 15 g/m 2 ) Unit Value Tolerance Standard Total thickness μm 315 ± 5 % ISO 4593:1993 Weight g/m² 450 ± 5 % internal Ageing resistance Weathering No visible changes concerning colour, gloss and adhesion after h, xenon test. DIN EN ISO Damp-heat test No visible or relevant functional changes (included encapsulant adhesion) after 4,000 h (average). The test was realized in laminated modules (glass/encapsulant/cpc backsheet). IEC (85 C, 85 % R. F.) Technical properties Tensile strength N/mm² 110 (MD) (TD) min ISO Elongation at break % 100 (MD) - 90 (TD) min ISO Encapsulant adhesion (Solutia Vistasolar ) initial 1,000 h damp-heat 2,000 h damp-heat N/mm 6 3 no visible change min T-Peel (IEC TC-82 WG2 NWIP sheets) Junction box adhesion (Adhesive DOW PV 804) initial 1,000 h damp-heat 2,000 h damp-heat N/mm 4 (cohesion PV804) 2 (cohesion PV804) no visible change min T-Peel (IEC TC-82 WG2 NWIP sheets) Heat shrinkage % 1.5 (MD) 1.0 (TD) max Water vapour permeability g/m² d 2.4 max ASTM D-1204 (150 C, 30 min) ASTM F-1249 (38 C, 90 % r.h.) Breakdown voltage kv 20 min IEC Maximum system voltage VDC 1,000 min IEC

20 Twice as good by the sheet: the double-film solution HelioX PV backsheets neox CPPC F or the benefit of our customer s production processes and out of an environmental consciousness, halogen-based components can be omitted in the processing of two-film backsheets, starting immediately. The new HelioX PV backsheets neox CPPC by FERON are innovative film laminates made of two high-performance PET films, which are laminated together and coated with HelioX PV inside und HelioX PV outside for a maximum increase in durability. The color of the backsheets can be selected individually and reprocessing poses no problems. Due to its 2-film construction, the backsheet has one less physical weak spot, which reduces the error quotient due to problems with lamination by 50%! The properties of neox CPPC backsheets: 2-film design, 50% reduction of lamination weak spots as compared to TPT backsheets optional individual color selection environmentally friendly without Tedlar, halogen-free no release of hazardous hydrogen fluoride (HF) during thermal disposal form stability up to 250 C transparent hydrolysis-resistant lamination with HelioX PV adhesive use of all HelioX PV technologies Aluminium Féron GmbH & Co. KG Hammerbenden Düren / Germany Fon: Fax: Mail: info@feron.de Web:

21 Technical data: neox CPPC encapsulant (not integrated) HelioX PV inside coatings ( 15 g/m 2 ) PET film (250 μm) hydrolysis performance: basic HelioX PV adhesive ( 10 g/m 2 ) PET film (50 μm) hydrolysis performance: superior HelioX PV outside coatings ( 15 g/m 2 ) Unit Value Tolerance Standard Total thickness μm 330 ± 5 % ISO 4593:1993 Weight g/m² 475 ± 5 % internal Ageing resistance Weathering Damp-heat test No visible changes concerning colour, gloss and adhesion after h, xenon test. No visible or relevant functional changes (included encapsulant adhesion) after 3,000 h (average). The test was realized in laminated modules (glass/encapsulant/cppc backsheet). DIN EN ISO IEC (85 C, 85 % r.h.) Technical properties Tensile strength N/mm² 110 (MD) (TD) min ISO Elongation at break % 100 (MD) - 90 (TD) min ISO Interlayer adhesion (PET< >PET) initial 1,000 h damp-heat 2,000 h damp-heat N/mm no visible change min roller-peel (IEC TC-82 WG2 NWIP sheets) Encapsulant adhesion (Solutia Vistasolar ) initial 1,000 h damp-heat 2,000 h damp-heat N/mm 6 3 no visible change min T-Peel (IEC TC-82 WG2 NWIP sheets) Junction box adhesion (Adhesive DOW PV 804) initial 1,000 h damp-heat 2,000 h damp-heat N/mm 4 (cohesion PV804) 2 (cohesion PV804) no visible change min T-Peel (IEC TC-82 WG2 NWIP sheets) Heat shrinkage % 1.5 (MD) (TD) max Water vapour permeability g/m² d 2.3 max ASTM D-1204 (150 C, 30 min) ASTM F-1249 (38 C, 90 % r.h.) Breakdown voltage kv 20 min IEC Maximum system voltage VDC 1,000 min IEC

22 Not ALL good things come in threes HelioX PV backsheets standardx TPC D ue to their high durability level and reliable processing qualities, most photovoltaic backsheets are still based on a two-layer Tedlar construction combined with a PET film (TPT). FERON has replaced the entire inner Tedlar film with the HelioX PV inside coating especially designed for this use, so that only the high-performance PET film and the one remaining Tedlar layer must be laminated together. The HelioX PV coating optimally protects against UV radiation and the material has outstanding adhesive qualities and bonding strength toward the encapsulants. The omission of the Tedlar layer is not a compromise, but a benefit! We offer these 2-film sheets to customers that don t completely want to forego the traditional Tedlar technology. The properties of standardx TPC backsheets: 2-film design, 50% reduction of lamination weak spots as compared to TPT backsheets optional individual color selection (inward) transparent hydrolysis-resistant lamination with HelioX PV adhesive Aluminium Féron GmbH & Co. KG Hammerbenden Düren / Germany Fon: Fax: Mail: info@feron.de Web:

23 Technical data: standardx TPC encapsulant (not integrated) HelioX PV inside coatings ( 15 g/m 2 ) PET film (250 μm) hydrolysis performance: basic HelioX PV adhesive ( 10 g/m 2 ) Tedlar film (38/25 μm, 1 st /2 nd gen.) Unit Value Tolerance Standard Total thickness μm 295 ± 5 % ISO 4593:1993 Weight g/m² 430 ± 5 % internal Ageing resistance Weathering Damp-heat-test No visible changes concerning colour, gloss and adhesion after h, xenon test. No visible or relevant functional changes (included encapsulant adhesion) after 3,000 h (average). The test was realized in laminated modules (glass/encapsulant/tpc backsheet) DIN EN ISO IEC (85 C, 85 % r.h.) Technical properties Tensile strength N/mm² 130 (MD) (TD) min ISO Elongation at break % 120 (MD) (TD) min ISO Interlayer adhesion (Tedlar < >PET) initial 1,000 h damp-heat 2,000 h damp-heat N/mm 0.5 (Tedlar film breakage) 0.5 (Tedlar film breakage) no visible change min roller-peel (IEC TC-82 WG2 NWIP sheets) Encapsulant adhesion (Solutia Vistasolar ) initial 1,000 h damp-heat 2,000 h damp-heat N/mm 6 3 no visible change min T-Peel (IEC TC-82 WG2 NWIP sheets) Junction box adhesion (Adhesive DOW PV 804) initial 1,000 h damp-heat 2,000 h damp-heat N/mm 4 (cohesion PV804) 2 (cohesion PV804) no visible change min T-Peel (IEC TC-82 WG2 NWIP sheets) Heat shrinkage % 1.0 (MD) (TD) max Water vapour permeability g/m² d 2.5 max ASTM D-1204 (150 C, 30 min) ASTM F-1249 (38 C, 90 % r.h.) Breakdown voltage kv 20 min IEC Maximum system voltage VDC 1,000 min IEC

24 What is dear to some HelioX PV backsheets standardx TPT Of course, upon request, we also offer the classic 3-film sheet based on a high-performance PET film between two layers of Tedlar. A proven technology that the branch has trusted for more than 25 years. Manufacturers that use HelioX PV backsheets standardx TPT can be assured that the PET film is reliably protected against degradation by weathering with this design. An additional coating of Tedlar films to reinforce the durability is not necessary. The properties of standardx TPT backsheets: standard backsheet 3-film design, a high-performance PET film for electric insulation between two Tedlar films used successfully in solar modules for more than 25 years transparent hydrolysis-resistant lamination with HelioX PV adhesive Aluminium Féron GmbH & Co. KG Hammerbenden Düren / Germany Fon: Fax: Mail: info@feron.de Web:

25 Technical data: standard TPT encapsulant (not integrated) Tedlar film (38/25 μm, 1st/2 nd gen.) HelioX PV adhesive ( 10 g/m 2 ) PET film (250 μm) hydrolysis performance: basic HelioX PV adhesive ( 10 g/m 2 ) Tedlar film (38/25 μm, 1st/2 nd gen.) Unit Value Tolerance Standard Total thickness μm 325 ± 5 % ISO 4593:1993 Weight g/m² 470 ± 5 % internal Ageing resistance Weathering Damp-heat-test No visible changes concerning colour, gloss and adhesion after h, xenon test. No visible or relevant functional changes (included encapsulant adhesion) after 3,000 h (average). The test was realized in laminated modules (glass/encapsulant/tpt backsheet) DIN EN ISO IEC (85 C, 85 % r.h.) Technical properties Tensile strength N/mm² 110 (MD) (TD) min ISO Elongation at break % 100 (MD) - 90 (TD) min ISO Interlayer adhesion (Tedlar < >PET) initial 1,000 h damp-heat 2,000 h damp-heat N/mm 0,5 (Tedlar film breakage) 0,5 (Tedlar film breakage) no visible change min roller-peel (IEC TC-82 WG2 NWIP sheets) Encapsulant adhesion (Solutia Vistasolar ) initial 1,000 h damp-heat 2,000 h damp-heat N/mm 8 3 no visible change min T-Peel (IEC TC-82 WG2 NWIP sheets) Junction box adhesion (Adhesive DOW PV 804) initial 1,000 h damp-heat 2,000 h damp-heat N/mm 4 (cohesion PV804) 2 (cohesion PV804) no visible change min T-Peel (IEC TC-82 WG2 NWIP sheets) Heat shrinkage % 1.0 (MD) (TD) max Water vapour permeability g/m² d 2.4 max ASTM D-1204 (150 C, 30 min) ASTM F-1249 (38 C, 90 % r.h.) Breakdown voltage kv 20 min IEC Maximum system voltage VDC 1,000 min IEC

26 Way ahead of the game for 15 years HelioX PV frontsheets translux EC Our highly transparent HelioX PV translux EC frontsheets are sturdy and have excellent weathering- and UV-resistance. Also against external influences such as hail, fire, or chemicals, translux EC frontsheets provide outstanding protection. In addition, they are very tear- and impact-resistant and are given a practical easy-clean effect. It is not surprising that translux EC products have been used successfully in the PV market for more than 15 years! The properties of translux EC frontsheets: mono film ETFE frontsheet used successfully in solar modules for more than 15 years weathering and ageing resistant hardly inflammable easy-clean effect low water vapour transmission rate excellent adhesion promoter to encapsulants higher transparency than glass weight advantage compared to glass Aluminium Féron GmbH & Co. KG Hammerbenden Düren / Germany Fon: Fax: Mail: info@feron.de Web:

27 Technical data: translux EC ETFE film (100 μm or thicker/thinner) HelioX PV inside coatings (transparent, < 0,5 g/m 2 ) encapsulant (not integrated) Unit Value Tolerance Standard Total thickness μm 100 ± 5 % ISO 4593:1993 Weight g/m² 175 ± 5 % internal Ageing resistance Weathering No visible changes concerning colour, gloss and adhesion after h, xenon test. DIN EN ISO Damp-heat-test No visible or relevant functional changes (included encapsulant adhesion) after 2,000 h (average). The test was realized in laminated modules (EC frontsheeet/encapsulant/glass) IEC (85 C, 85 % r.h.) Technical properties Tensile strength N/mm² 40 (MD) - 40 (TD) min ISO Elongation at break % 300 (MD) (TD) min ISO Tension at 10 % elongation N/mm 20 (MD) - 20 (TD) min ISO Tear resistance N/mm 300 (MD) (TD) min DIN Opacity % 2.6 min ASTM D 2805 Encapsulant adhesion (Solutia Vistasolar ) N/mm > film expansion min internal Heat shrinkage % 1.75 (MD) (TD) max Water vapour permeability g/m² d 3 max ASTM D-1204 (150 C, 30 min) ASTM F-1249 (38 C, 90 % r.h.) Flammabilityhardly inflammable ASTM D Breakdown voltage kv 12 min IEC Maximum system voltage VDC 850 min IEC

28 Aluminium Féron GmbH & Co. KG Hammerbenden Düren / Germany Fon: Fax: Mail: info@feron.de Web: