HEPE1 / HEPE2
EPE – High Transmittance / High Cut-Off
EVA's cost with POE's moisture barrier and PID resistance, in one co-extruded film.
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POE
POE – High Transmittance / High Cut-off / White
HPOE1 / HPOE2
Superior PID and polarisation resistance with an enhanced moisture barrier — the encapsulant for TOPCon, HJT and double-glass.
The cells that generate best are the cells that are most easily ruined. TOPCon and HJT gain their efficiency from surfaces and passivation layers that moisture and sodium ion migration attack directly, and EVA's acetic acid generation makes both worse.
POE does not generate acetic acid and does not pass moisture the way EVA does. HPOE1 and HPOE2 are formulated for exactly that duty: PID and polarisation resistance, a strong moisture barrier, and stable lamination without additive migration.
Why this one
- Superior PID and polarisation resistanceThe failure mode that shows up as whole-string underperformance on a humid site with a grounded frame.
- Stable lamination performanceNo additive migration or slipping, with excellent gas release properties.
- Outstanding transmittance and ageing resistanceMaintained through accelerated ageing rather than only at time zero.
- Enhanced moisture barrierExtends service life in humid and high-temperature environments — the environments where warranty claims cluster.
Specification
The manufacturer does not publish a numeric specification table for this product. The performance figures above are as published; a full datasheet with dimensions, electrical data and tolerances is sent by email against the model number and destination market.
Storage and shelf life
High storage stability with no special storage requirements. Warranty period is six months under cool, dry storage conditions.
Applications
- Moisture-sensitive PERC and TOPCon modules
- Glass-glass and glass-backsheet configurations
- High-PID-resistance requirements
- Distributed and portable applications
Supplied from
Suzhou, Jiangsu, China — and PT. Hondol Material Indonesia, Batam, for customers served from Indonesia.
Questions about POE – High Transmittance / High Cut-off / White
Why does POE resist PID better than EVA?
EVA generates acetic acid as it ages, which mobilises sodium ions from the glass towards the cell. POE does not, so the mechanism that drives PID largely disappears.
Is the white grade available?
Yes — this series is published in high-transmittance, high-cut-off and white grades.
Is POE worth the cost premium over EPE?
On HJT and on double-glass modules destined for humid, hot sites, usually yes. On mainstream TOPCon, EPE often carries enough of the benefit.
Related products
Same series first, then the rest of PV Encapsulation Materials.
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.
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HD-CPPC-T
Transparent High-Barrier Backsheet
For TOPCon, HJT and perovskite modules, where moisture sensitivity is the reliability limit.
View specification →
HD-CAPC
Aluminum-Based Backsheet
A 15–30 µm aluminium layer and a flame-retardant core, at 300 µm total.
View specification →Get POE – High Transmittance / High Cut-off / White 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.