How to choose packaging for building materials

1. Material type selection
‌Paper-bottomed bag‌
It adopts a three-layer kraft paper structure, with the outer layer being bleached wood pulp paper (120-200g/m²). It has better air permeability than woven bags, but weaker waterproofness, and requires moisture-proof storage measures.
‌Woven seam bottom/pasted bottom bag‌
Polypropylene (PP) woven bags can bear up to 150kg, and their wear resistance is 40% higher than that of paper bags. They are recommended for long-distance transportation scenarios; pasted bottom woven bags have better sealing properties and can reduce the risk of cement spillage.
‌Composite film bulk bag‌
It adopts PE/PP composite film technology (thickness ≥0.15mm), which is suitable for ton-level bulk transportation and can reduce packaging costs by more than 35%.