The P-grade expanded polystyrene packaging box was made with one purpose in mind: keeping fragile things like ceramic lamps safe without piling on extra weight. It has a particularly high foaming efficiency, good storage stability, excellent comprehensive properties, good smoothness, good toughness, and multiple pre-foaming capabilities. Compared with the usual expanded polystyrene boxes, this expanded polystyrene packaging box feels more balanced—strong enough to handle a knock during shipping, yet light enough.
Product Features:
Product introduction
The P-grade expanded polystyrene packaging material is a versatile EPS that works with automatic vacuum forming machines, traditional hydraulic presses, and all kinds of large plate machines. With its high foaming rate, a single foaming already gives light, airy bubble particles, while multiple foaming cycles produce even lighter foam—perfect for densities under 18 g/l single foaming or 10 g/l multiple foaming. P-grade expanded polystyrene packaging boxes are widely used in mechanical and electrical product packaging, thermal insulation, fishing floats, handicrafts, decorations, casting dies, and other lightweight large boards.
Product characteristics
Specification | Particle size | First expansion ratio | |
Material P | 301 | 1.0-1.8 | 80-100 |
302 | 0.8-1.3 | 70-90 | |
303 | 0.6-1.0 | 60-80 | |
401 | 0.3-0.8 | 55-75 |
Product Advantages
Application Fields
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