1. Main Materials
PP (Polypropylene) – Food-grade, heat-resistant (≥100°C), excellent flex strength. Top choice.
HIPS (High-Impact Polystyrene) – High rigidity and gloss, but brittle. Not for heavy loads.
PE (Polyethylene) – Flexible and cold-resistant, mostly used in soft-sided cabinets.
2. Key Manufacturing Techniques
Injection-molded – Seamless, stronger load capacity – prefer over snap-together types.
Steel-reinforced shelves – Built-in metal ribs inside shelves prevent sagging. For a five-layer folding PP storage cabinet, this reinforcement is especially critical to maintain stability across all tiers.
3. Buying Tips
Smell – No pungent chemical odor (avoid low-grade recycled materials).
Certification – Look for "Food-grade PP" or China GB 4806.7 standard.
Structure – Shake the cabinet; joints should be tight and stable. If you are considering a five-layer folding PP storage cabinet, pay extra attention to the folding hinges and interlocking mechanisms, as they directly affect durability.
4. Usage & Maintenance
Max load ≤5 kg per shelf; place heavier items on lower tiers.
Wipe with a damp cloth – do not use alcohol or strong acids. Avoid prolonged sunlight to prevent fading and brittleness.
When folding or unfolding a five-layer folding PP storage cabinet, follow the instructed sequence to avoid stressing the hinge points.
5. Eco-Friendliness & Recycling
PP and PE are recyclable. Choose single-material designs for easier sorting and higher recycling value.
