Photovoltaic-grade EVA color masterbatch
EVA-MB Series
High-purity EVA color masterbatch, suitable for solar photovoltaic encapsulation films.
Product introduction
This photovoltaic-grade EVA color masterbatch is a high-purity formula designed for solar PV encapsulation films. With ultra-low volatile content and excellent UV/weather resistance, it is suitable for encapsulation of crystalline silicon and thin-film solar modules.
Product features
- Ultra-low volatile content (< 0.1%)
- Excellent UV resistance
- High light transmittance
- No PID (potential induced degradation) contribution
- Long-term weatherability stability
Typical applications
- Crystalline silicon PV modules
- Thin-film PV modules
- Solar backsheet
- Building-integrated photovoltaics (BIPV)
- Solar encapsulation film
Physical properties
| Performance | Test method | Value |
|---|---|---|
| Carrier resin | — | EVA (VA content 28-33%, photovoltaic grade) |
| Pigment content | — | 10-25% |
| Melt index (190°C/2.16 kg) | ISO 1133 | 10-30 g/10 min |
| Volatile content | Internal method | < 0.1% |
| Light transmittance | ASTM D1003 | > 90% |
Recommended processing conditions
| Parameter | Value |
|---|---|
| Drying | 50-60°C, 2-4 hours |
| Processing temperature | 90-110°C (films) |
| Let-down ratio | 2-5% |
| Extrusion temperature | 100-130°C |
Coloring performance
| Performance | Test method | Value |
|---|---|---|
| Color difference Delta E (CIE Lab) | ISO 7724 | < 1.0 |
| UV resistance (UVH 3000h) | IEC 61215 | Delta E < 3.0 |
| Light transmittance | ASTM D1003 | > 90% |
Other grades in the same polymer series
View EVA Ethylene-Vinyl Acetate Color Masterbatch all grades in this series (2 in total).
