PV Module Encapsulation Solutions
Providing customized encapsulation solutions for various photovoltaic module technologies.
Core Challenges in PV Module Encapsulation

Light Transmission Efficiency
Encapsulation materials must have high light transmittance to reduce optical losses and increase module output power.

Aging Resistance
Under conditions such as ultraviolet exposure, high temperature and humidity, and thermal cycling, the encapsulant must maintain stable adhesion and mechanical properties.

Anti-PID
In high-voltage systems, encapsulation materials should minimize the risk of ion migration and improve long-term electrical safety of modules.

Adaptability to PV Modules
Different photovoltaic cell technologies and module structures impose varying performance requirements on encapsulation materials.
Our Encapsulation Solutions for Different PV Modules
TOPCon Module Solution
- We provide single-glass and double-glass TOPCon module encapsulation solution, by adopting a unique acid-resistant and anti-polarization formulation, along with advanced processing technologies.
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Heterojunction (HJT) Module Solution
- Our newly launched HJT module encapsulation solution converts absorbed ultraviolet (UV) light into blue fluorescence.
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BC Module Solution
- To meet the demanding requirements of BC (Back Contact) modules for high reliability, low degradation, and long-term weather resistance, we have introduced a high-performance encapsulation solution suitable for both single-glass and dual-glass BC modules.
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Perovskite Module Solution
- Our next-generation encapsulation film designed specifically for perovskite applications adopts a unique formulation.
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0BB Module Solution
- Our “0BB skin film encapsulation solution” uses low-gram-weight EVA skin film, delivering stable product performance, with light transmittance ≥92%, haze ≤3%, and thermal shrinkage ≤2.5%.
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High-Reflectivity Encapsulation Solution
- We have developed a black high-reflectivity backsheet featuring a double-sided coating structure.
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PV Encapsulation Films
- Encapsulation films are available in EVA, POE, and co-extruded solutions - used to encapsulate and protect solar cells within a PV module.
- These films are placed above and below the cells during the lamination process, bonding the glass, cells, and backsheet into a single durable structure.
Protects cells from moisture,dust & UV
Enhances durability and extends module life
Ensures strong bonding and structural integrity
Improves module performance and reliability

Functional Film
Specialized layers used inside solar modules to improve functionality, efficiency and integration.
PV Backsheets
- Backsheets form the outermost rear layer of a solar module, acting as a protective barrier against environmental stress.
- Typically composed of multilayer laminates. They are critical for maintaining module integrity over decades.
Protects cells from moisture,dust & UV
Enhances durability and extends module life
Ensures strong bonding and structural integrity
Improves module performance and reliability

BPF-801 Backsheet
CPC (Coating / PET / Coating) structure; available in white or black.

BPF-801M Backsheet
White CPC backsheet with black grid printing; high-reflective.

BPF-801B Backsheet
Black appearance with high near-infrared reflectance.

BPF-801C Backsheet
High reflectance, strong adhesion, excellent damp-heat resistance.

BPF-803 Backsheet
Transparent double-sided coated PET (Coating / PET / Coating) backsheet.

BPF-803M Backsheet
Transparent backsheet with black/white grid printing.

BPF-805 Backsheet
Ultra-low water vapor transmission rate; WVTR ≤0.001 g/m²·d.

BPF-807 Backsheet
Weather-resistant PET with water vapor barrier layer; WVTR ≤0.3 g/m²·d.

BOP-60 Backsheet
Lightweight high-strength, multi-layer fiberglass composite structure.

BPP-60 Backsheet
PP multi-layer fiberglass composite structure with double-sided weather-resistant coating.
PV Frontsheet
- PV frontsheet is a front-side encapsulation material for lightweight photovoltaic modules, designed to replace traditional glass front panels.
- We offer BMF reinforced and BPF multilayer composite PV frontsheets, suitable for lightweight modules, flexible modules, and front-side encapsulation applications.
High Light Transmittance: Light transmittance up to 92%
UV Protection: UV blocking rate up to 99%
Reliable Bonding: Initial peel strength ≥50 N/10 mm
Long-Term Reliability: Passed aging tests including DH1000h, UV120 kWh, TC200, and HF10

BMF-16 PV Frontsheet
High-transmittance reinforced lightweight frontsheet.

BMF-16L PV Frontsheet
High-transmittance ultra-thin reinforced frontsheet.

BMF-30 PV Frontsheet
High-strength, high-insulation reinforced frontsheet.

BMF-30L PV Frontsheet
High-transmittance thick reinforced frontsheet.

BPF-808 PV Frontsheet
Low water vapor transmission barrier frontsheet.

BPF-809 PV Frontsheet
Transparent backsheet with black/white grid printing.
PV Auxiliary Materials
- Auxiliary materials include a range of supporting products (from functional coatings to adhesives, sealing tapes and edge sealants) .
- They are used during PV module manufacturing to improve performance, assembly, and durability.
Excellent weather resistance and UV aging resistance
Long-term damp heat reliability
Enhanced module reliability and airtightness
Improved module power generation efficiency

WSD-3102 Coating
Protects composite frames with UV, corrosion, and weather resistance.

WSD-1553 Coating
General-purpose backsheet surface protection with balanced cost and performance.

WSD-1553BK Coating
Designed for all-black modules with high blackness, low reflectivity, and weather resistance.

WSD-1555 Coating
Enhances mechanical and environmental durability with wear and aging resistance.

WSD-1556 Coating
Improves moisture and heat resistance with excellent chemical corrosion resistance.

WSD-1557 Coating
Provides backsheet protection and insulation enhancement with strong adhesion and aging resistance.

WSD-1559 Coating
Enhances backsheet weather resistance and adhesion with excellent UV, hydrolysis, and weather resistance.

WSD-1722 Adhesive
Used for backsheet lamination bonding with high bonding strength and long-term durability.

WSD-17725 Edge-sealing Tape
25 mm wide, provides edge sealing with excellent moisture and vapor barrier performance.

WSD-17730 Edge-sealing Tape
30 mm wide, provides edge sealing with excellent moisture and vapor barrier performance.

WSD-2728 Additive
Improves resistance to moisture and heat aging with anti-hydrolysis performance.


