The ISARD 2180 series by Crown, previously listed as a single product in earlier surveys, has now been categorized into 2 variants: High Transparency and Double Resistance. Both variants retain key features, including a fast-curing class, a thickness range of 300-800 μm, a width of up to 2,200 mm, and a transparent color with an embossed finish. They offer tensile strength of ≥ 16 MPa and elongation of≥ 450% in both MD and TD directions. Additionally, they exhibit low shrinkage rates of < 4% in MD and< 2% in TD. Adhesive strength is also high, with ≥ 80N/cm to glass and ≥ 60 N/cm to backsheets. The differences between the 2 variants are primarily performance-based: the High Transparency model offers ≥ 91% light transmittance in the 400 to 1,100nm range, while the Double Resistance variant provides slightly lower transmittance at ≥ 90% (see Encapsulation Sector Balancing Innovation And Cost Pressures In Solar).
Processing conditions are similar for both products, requiring lamination temperatures of 140 to 145°C for High Transparency and 143 to 153°C for Double Resistance. The ISARD 2280 series from Crown now includes3 distinct variants – Cut-off, Light Conversion, and White Film – each tailored to meet specific performance requirements. All 3 variants share key features, including fast-curing capabilities and high mechanical performance. The Light Conversion film has a thickness range of 300 to 800 μm, while the White Film variant ranges from 400 to 800 μm. The ISARD 2280 (Cut-off) variant reduces the risk of PID with light transmittance of ≤ 25% for 280 to 380 nm wavelengths and ≥ 91% for 400 to 1,100 nm. It supports lamination at 143-153°C with a vacuum time of 5 to 6 minutes. The Light Conversion variant improves module efficiency by converting UV light below 380 nm into blue light, offering a 1 to 1.5% power gain. It provides light transmittance of ≥ 80% for wavelengths ranging from 280 to 380 nm and ≥ 90% for the 380 to 1,100 nm. It is suitable for modules exposed to UV, heat, and humidity, with lamination parameters of 140 to145°C.
The White Film variant features a white finish, UV cut-off at 360 nm, and elongation of ≥ 500%. It is designed for high-performance applications and supports lamination at 140 to 150°C.All Crown EVA products are compatible with a lamination cycle time, and the company recommends 5-6 minutes of vacuum time and 10 to 12 minutes of press time. They offer a volume resistivity of 1 × 1015Ω cm.
For detailed information on Crown’s offerings, please refer to the product description section of the report, which outlines specifications for all 10 EVA-based materials.
The text is an excerpt from the latest TaiyangNews Market Survey on Backsheets & Encapsulation Materials 2024/25, which can be downloaded for free here.
