insulation strip-----cpc/beva
product series
| model | structure | thinckness | color |
| bec-201 | f-coating/pet/f-coating | 10μm/125μm/10μm | white /black |
| bec-201d | f-coating/pet/f-coating | 10μm/250μm/10μm | white /black |
| bec-201t | f-coating/pet/f-coating | 10μm/125μm/10μm | transparent |
| beva-201 | eva/f-coating/pet/f-coating | 100μm/10μm/125μm/10μm | white /black |
| beva-201d | eva/f-coating/pet/f-coating | 100μm/10μm/250μm/10μm | white /black |
| beva-201t | eva/f-coating/pet/f-coating | 100μm/10μm/125μm/10μm | transparent |
introduction
firstbacksheet®bec-201&beva-201 are two types of insulation strips containing hydrolysis resistant pet layer and fluorine layer. it is widely used to separate and position the bus bar with the bubble-free lamination condition and excellent performances in electric insulation, weather durability and prolong adhesive property.
basic property
| property | quoted standard | unit | bec-201 | bec-201d | bec-201t | beva-201 | beva-201d | beva-201t |
| thickness | / | μm | 145 | 270 | 145 | 245 | 370 | 245 |
| peeling strength with eva | gb/t 2790-1995 | n/10mm | >100 | >100 | >100 | >100 | >100 | >100 |
| volume resistivity | gb/t 1410-2006 | ω.cm | >3*1015 | >3*1015 | >3*1015 | >3*1015 | >3*1015 | >3*1015 |
| dielectric strength | astm d149-1997 | kv/mm | >100 | >100 | >100 | >100 | >100 | >100 |
| shrinkage（150℃*30min , md/td） | gb/t 13542.2-2009 | % | <0.3/0.3 | <0.3/0.3 | <0.3/0.3 | <0.3/0.3 | <0.3/0.3 | <0.3/0.3 |
| transmittance(400-700nm) | gb/t 29848-2013 | % | <10 | <5.0 | >85 | <10 | <5.0 | >85 |
| haze(400-700nm) | gb/t 29848-2013 | % | / | / | <25 | / | / | <25 |
