Heat &Humidity resistance test
Test time:1000hours
Condition :85℃ 85%RH
150mm*200mm glass + ST+glass
| Item | Unit | VT | ST | A competitor’s | B competitor’s |
| Light transmittance (390nm—900um) | % | 91 | 91 | 90.2 | 90.1 |
| Haze | % | 0.25 | 0.25 | 0.3 | 0.6 |
■ The excellent UV resistance property can maintain and extend the laminated glass ‘useful life .
■ ST film enjoy excellent weather durability than other competitors due to low degradation in the UV radiation .
| Item | Unit | VT | ST | A competitor’s | B competitor’s |
| Blocked UV wavelength | nm | 390 | 390 | 360 | 380 |
| UV block rate | % | >99 | >99 | 50 | 90 |
Test method : fluorescent tube (UVA340, 50℃±5℃ ,HR65%)
150mm*75mm , glass + ST+glass
| ITEM | UNIT | VT-EVA | ST-EVA | PVB | A competitor’s | Bcompetitor’s |
| Shore Hardness | HA | 80.2 | 75.6 | / | 64 | 74 |
| Tensile Strength | MPA | 23 | 18 | 20 | 11 | 17.2 |
Adhesion strength comparison chart
■ The adhesion strength of eva film is in proportion to the temperature .
■ ST eva is able to play a very strong adhesion performance at 100℃
1) Heat &Humidity resistance test
Test time:1000hours
Condition :85℃ 85%RH
150mm*200mm glass + ST+glass
.
■ Under tough condition 85℃ 85%RH ,ST EVA has outstanding weather durability and stability
■ ST laminated glass has no obvious changes and edge defects
1) UV Blocking test
Test method : fluorescent tube (UVA340, 50℃±5℃ ,HR65%)
150mm*75mm , glass + ST+glass
■ The excellent UV resistance property can maintain and extend the laminated glass ‘useful life .
■ ST film enjoy excellent weather durability than other competitors due to low degradation in the UV radiation .
KENGO VT EVA
135℃ 60mins Crosslinking rate can reach to 94%