HD-CPPC-T
Transparent High-Barrier Backsheet
For TOPCon, HJT and perovskite modules, where moisture sensitivity is the reliability limit.
View specification →
Low Water Vapor Transmission Rate Series
Aluminum-Based Backsheet
HD-CAPC
A 15–30 µm aluminium layer and a flame-retardant core, at 300 µm total.
There is a limit to how much moisture a polymer barrier can stop, and for the most moisture-sensitive cell technologies that limit is the binding one. Metal does not have that limit.
HD-CAPC laminates a 15–30 µm aluminium layer into a 300 µm backsheet, behind a UV cut-off weather-resistant coating and in front of a 275 µm flame-retardant water-resistant core — a genuinely different barrier mechanism rather than a thicker version of the same one.
Why this one
- WVTR of 10⁻² to 10⁻³ g/m²·dayFrom a metal barrier layer rather than from polymer thickness.
- Flame-retardant middle layerThe 275 µm water-resistant middle layer is specified as flame retardant.
- Excellent insulationSpecial structural design meets all module insulation requirements despite the metal layer.
- Power degradation under 2% after PID288 and DH2000Same reliability envelope as the transparent high-barrier construction.
Specification
| Product Structure | Air Coating | Air Coating: 10μm, Weather-Resistance, UV Cut-OffAL Layer |
|---|---|---|
| AL Layer | AL Layer: 15~30μm, Water-Resistance | |
| Glue | Glue Layer: 5μm, Bonding | |
| Middle Layer | Flame Retardant Layer: 275μm, Water-Resistance | |
| Inner Coating | Inner Coating: 5μm, Great Bonding Performance with EVA | |
| Product Type | HD-CAPC | HD-CPC |
| Product Code | HD-CAPC | |
| Product Name | Insulating back sheet for crystalline silicon terrestrial photovoltaic (PV) modules | High water vapor barrier back sheet for crystalline silicon terrestrial photovoltaic(PV) modules |
| Thickness | Air Coating: 10±2um AL Layer: 15~30±3um Glue Layer: 5±2um Middle Layer: 275±10%um Inner Coating: 5±2um Total Thickness: 300±10%um | |
| Color | White |
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
- Monofacial glass-backsheet modules
- Humid and high-temperature climates
Supplied from
Suzhou, Jiangsu, China — and PT. Hondol Material Indonesia, Batam, for customers served from Indonesia.
Questions about Aluminum-Based Backsheet
Does the aluminium layer affect insulation or earthing?
The construction's structural design is specified to meet all module insulation requirements. Layer stack-up details are supplied with the datasheet.
Can it be used on bifacial modules?
No — it is white and opaque. For bifacial gain use the transparent high-barrier backsheet, which shares the same barrier target.
What is the total thickness?
300 µm ±10%: 10 µm air coating, 15–30 µm aluminium layer, 5 µm glue layer, 275 µm middle layer and a 5 µm inner coating.
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 Aluminum-Based 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.