HD-CAPC
Aluminum-Based Backsheet
A 15–30 µm aluminium layer and a flame-retardant core, at 300 µm total.
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Low Water Vapor Transmission Rate Series
Transparent High-Barrier Backsheet
HD-CPPC-T
For TOPCon, HJT and perovskite modules, where moisture sensitivity is the reliability limit.
Perovskite and HJT are the cell technologies the industry is betting on, and both are more sensitive to moisture than the PERC cells the current backsheet stock was designed for. A backsheet that was adequate in 2018 is a warranty liability on a 2026 bill of materials.
HD-CPPC-T is built for that shift: a 321 µm transparent construction with a UV cut-off outer coating, a water vapour transmission rate of 10⁻² to 10⁻³ g/m²·day and power degradation under 2% through PID288 and DH2000.
Why this one
- WVTR of 10⁻² to 10⁻³ g/m²·dayTwo to three orders of magnitude below a plain PET construction.
- Insulation by structural designThe special structural design meets all module insulation requirements.
- Power degradation under 2% after PID288 and DH2000Accelerated ageing that mirrors the humid, high-voltage conditions that end field warranties.
- 321 µm ±5%, transparent10 µm weather-resistant UV cut-off air coating, 306 µm insulating middle layer and a 5 µm EVA-bonding inner coating.
Specification
| Product Structure | Air Coating | Air Coating: 10μm, Weather-Resistance, UV Cut-Off |
|---|---|---|
| Middle Layer (PET) | Middle Layer: 306μm, Insulation Propert, Water Vapor Barrier | |
| Inner Coating | Inner Coating: 5μm, Great Bonding Performance with EVA | |
| Product Type | HD-CPPC | HD-CPC |
| Product Code | HD-CPPC-T | |
| Product Name | Insulating back sheet for crystalline silicon terrestrial photovoltaic (PV) modules | High transmittance water blocking back sheet for crystalline silicon terrestrial photovoltaic(PV) modules |
| Thickness | Air Coating: 10±2μm Middle layer: 306μm±5% Inner Coating: 5(-0,+2)μm Total Thickness: 321 μm±5% | |
| 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
- TOPCon, HJT and perovskite modules
- Glass and lightweight module designs
- Portable and distributed applications
Supplied from
Suzhou, Jiangsu, China — and PT. Hondol Material Indonesia, Batam, for customers served from Indonesia.
Questions about Transparent High-Barrier Backsheet
Transparent or aluminium-based?
Transparent keeps rear-side generation, so it is the bifacial answer. The aluminium-based backsheet gives the harder moisture barrier where rear generation is not part of the yield model.
Is it certified?
Hondol was among the first companies awarded TÜV Rheinland IEC 62788-2-1:2023 certification for PV module front sheets and backsheets. Certificates are sent by email against the product code.
Does it suit perovskite tandem modules?
It is published as suitable for perovskite modules that are highly sensitive to moisture, which is the primary reason for its barrier specification.
Related products
Same series first, then the rest of PV Encapsulation Materials.
HPOE1 / HPOE2
POE – High Transmittance / High Cut-off / White
Superior PID and polarisation resistance with an enhanced moisture barrier — the encapsulant for TOPCon, HJT and double-glass.
View specification →
HEPE1 / HEPE2
EPE – High Transmittance / High Cut-Off
EVA's cost with POE's moisture barrier and PID resistance, in one co-extruded film.
View specification →
HEVA1 / HEVA2 / HEVAW4
EVA – High Transmittance / High Cut-off / White
Additive-free formula — no slipping, no exudation, and a white variant that reflects light back into the cells.
View specification →Get Transparent High-Barrier Backsheet 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.