Description
3M UBF-9L ETFE Ultra Barrier Solar Film 1147mm x 50m Roll 70-0066-8381-0
The 3M UBF-9L is an ETFE (ethylene tetrafluoroethylene) ultra barrier flexible film engineered as a top sheet for flexible thin-film solar panels. It is designed to replace glass in flexible photovoltaic modules, providing high optical transmission, low moisture vapor transmission, UV stability, and weather protection. This listing is for one 50-meter roll, 1147mm wide. Additional lengths from 50m to 400m are available — contact us to request a quote. We have over 16,000 square meters in stock.
Specifications & What's Included
- Brand: 3M
- Model: UBF-9L (Ultra Barrier Solar Film 9L)
- Part Number: 70-0066-8381-0
- Lot Number: 201301300273
- Roll Width: 1147 mm (45.15 in)
- Roll Length: 50 m (label states 53.0 m / 57.9 yd — see label photo)
- Thickness: 9 mil / 0.009 in (approximate; measured in-house with digital calipers)
- Material: ETFE (Ethylene Tetrafluoroethylene)
- Compatible Module Types: Copper Indium Gallium Selenide (CIGS), Cadmium Telluride (CdTe), Organic Photovoltaic (OPV)
- Optical Transmission Range: 400–1400 nm
- Low moisture vapor transmission rate (MVTR)
- UV stable and flexible
- Partial Discharge Rating: 1,000V
- High transmission, low shrinkage
- UL Certified Component: E316895
- Country of Manufacture: United States
- What's included: One film roll, repackaged in a ground-shipping-compatible box
Applications
The 3M UBF-9L is used in the manufacturing of flexible thin-film photovoltaic modules, where it serves as the front (top) encapsulant sheet in place of conventional glass. It is specifically suited for CIGS, CdTe, and OPV solar cell technologies, which require a flexible, lightweight front sheet that allows high solar irradiance transmission while providing a strong barrier against moisture ingress — a primary degradation mechanism in thin-film PV. ETFE films like the UBF-9L are used by solar panel manufacturers building lightweight and flexible modules for applications such as building-integrated photovoltaics (BIPV), portable solar, and curved or irregular mounting surfaces. The film's UV stability and 1,000V partial discharge rating make it suitable for long-term outdoor deployment in finished modules.
This 3M UBF-9L ETFE Ultra Barrier Solar Film roll (70-0066-8381-0) is new and unused. Rolls are repackaged from the original 3M manufacturer box into a smaller box to allow for ground shipping. The film itself is in new, uncut condition. We have multiple units in stock; the specific roll shipped may vary slightly from the one photographed but is functionally equivalent. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
3M |
Model: |
UBF-9L |
MPN: |
70-0066-8381-0 |
SKU: |
52197 |
Type: |
ETFE Ultra Barrier Solar Panel Top Sheet Film |
Material: |
ETFE (Ethylene Tetrafluoroethylene) |
Roll Width: |
1147 mm (45.15 in) |
Roll Length: |
50 m (53.0 m per label / 57.9 yd) |
Thickness: |
9 mil / 0.009 in (approx., measured in-house) |
Compatible Module Types: |
CIGS, CdTe, OPV (Organic Photovoltaic) |
Optical Transmission Range: |
400–1400 nm |
Partial Discharge Rating: |
1,000V |
UL Certification: |
UL Certified Component E316895 |
Lot Number: |
201301300273 |
Country/Region of Manufacture: |
United States |
Seller Notes: |
Film roll only — repackaged from original 3M box into a smaller box for ground shipping. |
Condition Notes: |
3M UBF-9L ETFE Ultra Barrier Solar Film — new, unused. Repackaged from original 3M box into a smaller box for ground shipping. Multiple units in stock; unit shipped may vary from photo. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
