10 Meter/Lot Wholesale Black TPT Back Sheet, 810mm width 0.3mm thickness, 810mm Black TPT Backsheet for Solar Panel Laminated,UL
If you have special requirements about the size of TPT backsheet or you need other color TPT backsheet , please contact with us directly. We can provide you any size below 1100mm width TPT back sheet, if your quantity is suitable.
Solar TPT back sheet is one of the key encapsulation materials which are applied in the PV module, composed of the Fluorine materials with excellent climate durability and PET with outstanding electrical insulation .
Solar module back sheet mainly consists of two categories: fluorine-contained and no fluorine-contained. Fluorine-contained back sheet include double-sides fluorine-contained (eg. TPT) and single-side fluorine-contained (eg. TPE); while no fluorine-contained back sheets are laminated by multilayers of PET by adhesives.
PV products are widely used in many industries because of its energy-saving, environment friendly and long life. Back sheet is the critical factor to ensure it’s more than 25-year working-life . The solar module back sheet is on the surface of the PV module. After bonding with EVA, it can block the air to make a vacuum seal for the core region of the module . In order to ensure that, the primary task of the seal is to be water-proof, air-proof and electricity-proof . So the solar module back sheet should have high electrical insulation, high weathering resistance, high adhesion and low water vapor permeability .
MARS ROCK solar module back sheet is containing fluorine on both sides , with innovative formula structure, outstanding combination property and high price-performance ratio.
Structure of TPT Backsheet
Item Unit Test Method Value Backsheet Thickness μm Electronic Digital Micrometer 300±10 HFF Thickness μm Electronic Digital Micrometer 25±2 PET Thickness μm Electronic Digital Micrometer 250±6 HFF Thickness μm Electronic Digital Micrometer 25±2 Tensile Strength (MD) N/mm² ASTMD882-2009 ≥ 120 Tensile Strength (TD) N/mm² ASTMD882-2009 ≥ 120 Elongation (MD) % ASTMD882-2009 ≥ 110 Elongation (TD) % ASTMD882-2009 ≥ 100 Shrinkage 150 °C x30min (MD) % ASTMD1204-2008 ≤ 1.0 Shrinkage 150 °C x30min (TD) % ASTMD1204-2008 ≤0.6 Interlaminar Adhesion Rank GB/T9286-1998 0 Peel Strength (initial) with EVA N/cm GB/T2790-1995 ≥45 Peel Strength (initial) with EVA (85 °C x85%RH 1000h) N/cm GB/T2790-1995 ≥30 Vapor permeability g/m2 .d ASTMF1249-2006 ≤ 2.5 Breakdown Voltage Strength KV/mm ASTMD149-1997 ≥85 Partial Discharge Voltage VDC IEC60664-1-2007 IEC61730-2-2004 ≥1000 Anti-scratch Performance (1kg force for 5 times) / / Coating is not damaged Heat/Humidity Resistance Ageing Test (85 °C x85%RH 1000h) / GB/T13448-2006 No Delamination, Non-foaming, Non-color change UV Accelerated Ageing Test (QUV-B, 3000h) / GB/T16422.3-1997 Non-yellowing, No Embrittlement, No Delamination
1. High Weather Resistance
Through the double accelerated ageing tests of 85 pairs of 1000 hours, there will be non-delamination, non-cracking, non-foaming. There will be non-yellowing no embrittlement after ageing by artificial ultraviolet radiation exposure (QUVB) test 3000 hours.
Security grade has passed the flame-retardant UL 94-V2 flame-retardant grade, the UL flame spread index is less than 100, which effectively guarantees the module security features.
TUV Rhineland of PD≥1000VDC can avoid electrical arcing module
4.High Water Vapor Resistance
By infrared water vapor permeability tester, the water vapor permeability rates≤1.0g/m 2 .d.
5. High Adhesion
After the nano-plasma treatment, the surface energy of high fluoride levels can last 45mN/m or more within six months.
6. High-end Match
Suitable for large-scale photovoltaic power plants with the crystalline silicon cells module package.
Good compatibility comes from the bonding with the other packaging materials of module.
For its double-sided adhesion, there is no need to distinguish the back sheet’s positive and negative when components packaging, which brings convenience for technicians.
The adhesive data of the bone packaging for the package for the module and EVA could be adjusted as per the clients’ requirements.
1.High Scratching Resistance
The high scratching resistance get rid of these shortcomings of traditional coating, such as the surface of anti-scratch performance is poor, during the coating operation it is easy to get scratches or peel off, thus affecting the back sheet anti-ageing properties, etc.
- Unit Type: lot (10 Meter/lot)
- Package Weight: 4.5kg (9.92lb.)
- Package Size: 85cm x 15cm x 15cm (33.46in x 5.91in x 5.91in)
- Type: Sealers
- DIY Supplies: Electrical
- is_customized: Yes
- Model Number: TPT-810
- Color: Black
- Width: 810mm
- Thickness: 0.3mm
- Application: for solar panel lamination