HOMA-E
ETFE
94% transmittance, self-cleaning, unchanged after 25+ years outdoors, UL94 V-0.
View specification →
Weather-Resistant Layer
PF
HD-PF-K
40.5 µm total, over 88% transmittance in the 400–1100 nm band, and over 1000 kWh/m² UV endurance.
In a folding or vehicle-mounted module every micron of front film is weight and stiffness you did not want. The usual way to save it is to thin the film, and the usual price is weatherability.
HD-PF-K refuses that trade. At a 40.5 µm total construction it is a fraction of the thickness of a conventional front sheet, yet it carries over 1000 kWh/m² of UV exposure and over 120 kWh/m² of damp-heat UV, while its inner layer adds water vapour barrier and EVA bonding.
Why this one
- Over 88% transmittance across 400–1100 nmMeasured across the band crystalline silicon actually responds to, rather than a single headline figure.
- Over 99% UV rejection in the same bandThe encapsulant behind it never sees the radiation that would yellow it.
- Superior weatherabilityWithstands over 1000 kWh/m² UV exposure and over 120 kWh/m² damp-heat UV testing.
- 40.5 µm ±10% total thicknessA 22.5 µm weather-resistant air layer, 6 µm glue layer and 12 µm inner layer carrying insulation, water vapour barrier and EVA bonding.
Specification
| Product Structure | Air Coating | Air Layer:22.5μm, Weather-Resistance, UV Cut-Off |
|---|---|---|
| Glue | / | |
| Inner Layer | Inner Layer: 12μm, Insulation Property, Water Vapor Barrier Property, Great Bonding Performance with EVA | |
| Product Type | HD-PF | HD-CPC |
| Product Code | HD-PF-K | |
| Product Name | Insulating back sheet for crystalline silicon terrestrial photovoltaic (PV) modules | Flexible front sheet for light-weight crystalline silicon photovoltaic(PV) modules |
| Thickness | Air Layer: 22.5±5μm Glue Layer: 6±2μm Inner Layer: 12μm±10% Total Thickness: 40.5μm±10% | |
| Color | Transparent |
Values as published by the manufacturer. Tolerances and roll formats are confirmed in writing per order.
Storage and shelf life
High storage stability with no special storage requirements. Warranty period is one year under cool, dry storage conditions; laminating process generality should be evaluated after that period.
Applications
- Foldable and portable lightweight modules
- Residential balcony lightweight modules
- Automotive-integrated lightweight modules
- Commercial and industrial distributed lightweight modules
- BIPV
- Pneumatic structures
- Carports and gas stations
- Portable PV
Supplied from
Suzhou, Jiangsu, China — and PT. Hondol Material Indonesia, Batam, for customers served from Indonesia.
Questions about PF
Why choose PF over PVDF or ETFE?
Thickness. At 40.5 µm total it is the thinnest front sheet in the range, which is what foldable and automotive modules need. PVDF and ETFE are thicker and offer higher transmittance.
Does it bond directly to EVA?
Yes. The 12 µm inner layer is specified for insulation, water vapour barrier and good bonding performance with EVA.
What is damp-heat UV testing?
Combined ultraviolet and humidity exposure, which ages a film far faster than UV alone. HD-PF-K is specified above 120 kWh/m² on that test.
Related products
Same series first, then the rest of Lightweight PV Solutions.
HOMA-K
PVDF
Over 40% fluorine content, no chalking or cracking after 800 kWh/m² UV, and a matte finish under 30 GU.
View specification →
C&I Distributed Lightweight Modules
Up to 23.0% deliverable efficiency in a module light enough for a roof that was surveyed as non-load-bearing.
View specification →
Automotive-Used PV Modules
−40°C to 150°C, continuous high-frequency vibration, 15 years or 250,000 km.
View specification →Get PF quoted against your own construction.
Send the module format, the annual volume and the destination market. The reply carries the price, the lead time and the certificate.