P-grade ultra-light EPS is designed for lightweight packaging, including protection for fragile items such as ceramic lamps. It combines high foaming efficiency, shock absorption, good toughness and a smooth surface. Its storage stability and pre-expansion flexibility support a range of molded packaging shapes.
P-grade EPS is intended for packaging that protects fragile products while keeping weight low. Typical uses include protective boxes and inserts for ceramic lamps and other easily damaged items.
The P101 to P501 range includes bead-size options from 1.30–1.60 mm down to 0.35–0.50 mm. It combines high foaming efficiency, good toughness, smooth surfaces and storage stability for varied packaging forms.
| Grade | Application / positioning | Molded density (kg/m³) | Bead size (mm) | Thermal conductivity λ (W/m·K) |
|---|---|---|---|---|
| P101 | Ultra-Light GP | 8–15 | 1.30–1.60 | 0.038–0.045 |
| P201 | Ultra-Light Light | 10–18 | 1.10–1.40 | 0.038–0.044 |
| P301 | Ultra-Light Fine-Bead | 12–20 | 0.75–1.10 | 0.037–0.043 |
| P401 | Ultra-Light Medium | 15–25 | 0.50–0.75 | 0.036–0.042 |
| P501 | Ultra-Light Micro-Bead | 18–30 | 0.35–0.50 | 0.036–0.041 |
Share the P-series code, fragile-product dimensions, required packaging form, target density, cushioning requirements and quantity to focus the material discussion.
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