Technology
Manufacturing technology
for Glass to Glass (G to G) and Glass to Steel (G to S)
using polyolefin (POE) packaging materials.
Polyolefin (POE) packaging technology has the advantages of high-volume resistance,
glass adhesion strength, crystallinity, and low moisture penetration rate,
and can secure long-term reliability as a building material.
EPPSCORE constantly strives to provide the best quality
and performance to meet the diverse needs of our customers.
01Glass to Glass / Glass to Steel Diagram Comparison
Glass to Glass
Glass to Steel
02Integral Z-bar (Glass to Steel) manufacturing technology
-
Batch processing
No attaching of aluminum Z-bar process required
-
Laminating process
-
Junction box processing
-
Shipment
No attaching of aluminum Z-bar process required
03Polyolefin (POE) Packaging Tenchology
Comparison of packaging material properties
| Item | EVA(Ethylene Vinyl Acetate) | POE(Polyolefin) | Remarks |
|---|---|---|---|
| Vinyl Acetate Content (Vinyl Acetate)(wt%) | 28±4 | 0 | |
| PID(Potential-induced degradation) Volume resistivity(Ω-Cm) | ≥1×1014 | ≥1×1016 | 100x ↑ |
| Glass adhesion strength (N/cm) | 154 | 272 | 1.7x ↑ |
| Degree of crystallinity (%) | 9.9 | 20.2 | 2x ↑ |
| Moisture penetration rate WVTR(38℃×90% RH,500um)(g/m2-day) | 34 | 3.3 | 1/10x ↓ |
Improvement
Long-term reliabilityas a building material can be ensured by utilizing POE packaging materials.
- EVA(Ethylene Vinyl Acetate)
- PID(Degradation due to electrical potential difference)
- Delamination(Occurrence of moisture penetration/Delamination/thermal expansion)
- Corrosion (acetic acid)
- POE(Polyolefin)
- Anti - PID
- Significantly lower delamination due to low moisture penetration rate
- No Corrosion
04Glass to Glass / Glass to Steel BIPV Comparison
Glass to Glass
VS
Glass to Steel
| Tempered glass + aluminum Z-bar | Rear material | Integral steel Z-bar EGI |
|---|---|---|
| Non-flammable AL melting point (660℃) |
Non-flammable properties(1200℃ in case of fire) | Super non-flammable EGI melting point (1500℃) |
| 90.5% | Thermal resistance (at 33℃ external temperature)(STC 100%) | 92.5% |
| 100% | Price | 90% (compared to G to G) |
| 46Kg | Weight(based on 1000x2000) | 37Kg (20% reduction) (compared to G to G) |