Weather resistant coating agent Dynaleo™ PRC/DPT Series

Backsheets used in solar panels must be durable enough to prevent deterioration in harsh environments where they are exposed to sunlight, wind and rain.
TOYOCHEM 's highly weather-resistant coating agent for solar cell backsheets achieves high weather resistance and contributes to improving the durability and power generation efficiency of solar cell panels. In addition, our unique technology has dramatically improved the adhesive strength with the encapsulant (EVA) that protects solar cells.
It is an environmentally friendly product that does not contain fluorine ingredients such as PFAS.

• Characteristics 
• Product performance
• Dynaleo™ Proposal of backsheet configuration by PRC and DPT

Characteristics 

• Achieves high weather resistance with non-fluorine content
• Proprietary technology provides strong adhesion to encapsulants
• Color variations such as transparent, white, and black

Product performance

Strong adhesive coating agent Dynaleo™ PRC Series

Adhesion with encapsulant (EVA) (adhesion strength at 85°C and 85%RH)

Weather resistance (hue after SUV irradiation (100mW/cm2))

Weathering Coating Agents Dynaleo™ DPT Series

No paint film embrittlement before and after super xenon weather meter irradiation

Moisture heat resistant PET film

Dynaleo™ DPT (White)

• Comparison of film thinning in irradiated/unirradiated areas after irradiation by Super xenon weather meter (160W/m2 1,500Hr)  and showering.

• The surface roughness in the photo of Dynaleo™ DPT (white) is due to the filler added.

Dynaleo™ Proposal of backsheet configuration by PRC and DPT

By using Dynaleo™ PRC, the structure of the solar cell backsheet is simplified, and it achieves strong adhesion to the encapsulant and improved weather resistance.