Grey Polypropylene PP Solid Rods
Product Advantages
Dirt Resistance and Marking
The gray surface of PP rod is naturally dirt-resistant, making it difficult to show stains (such as dust and oil), making it suitable for industrial applications where cleanliness is not a high priority but dirt resistance is required. For example, in equipment guardrails on factory floors, PP rod's dirt resistance (reducing cleaning frequency) and lightweight (70%-80% lighter than metal guardrails) reduce maintenance costs. In consumer plastic products (such as plastic trash cans and tool boxes), its gray surface is dirt-resistant and discreet, making it suitable for outdoor or industrial environments (with a service life of >5 years).
Lightweight, High Toughness, and Low Cost
PP gray rod's high toughness (elongation at break ≥300%) and low density (0.90-0.91 g/cm³) make it an ideal material for products such as logistics pallets and turnover boxes. For example, in the manufacture of logistics plastic pallets, PP gray rod's lightweight properties (5%-10% lighter than HDPE pallets) reduce transportation costs (allowing 10%-15% more cargo per truck), while its high toughness (resisting the impact of stacked cargo) ensures that pallets do not crack under dynamic loads. In plastic turnover boxes used in food packaging plants, its chemical resistance (resistance to detergents) and low cost (raw material prices are 10%-20% lower than HDPE) improve economic efficiency (reducing unit costs by 15%-25%).
Chemical Resistance and Weathering Resistance
PP gray rod is stable to most acid, alkali, and salt solutions and organic solvents (no significant swelling at concentrations below 90%), and is weather-resistant and resistant to UV radiation, making it suitable for applications such as chemical storage tanks and outdoor facilities. For example, in the floating roof support structure of chemical raw material storage tanks, the chemical corrosion resistance (resistance to acid/alkali solution erosion) and weather resistance (no yellowing when exposed outdoors) of PP rods ensure that the support structure will not crack over the long term; in the cover of municipal drainage ditches, its wear resistance (Akron abrasion value ≤0.12cm³/1.61km) and weather resistance (resistance to wind and rain erosion) ensure the long-term smooth flow of the drainage system.
Specific Application Areas and Components
Industrial Manufacturing
Equipment Guardrails: Used as safety guardrails in factory workshops. Polypropylene gray rods' lightweight (70%-80% lighter than metal guardrails) and impact resistance (cantilever beam notched impact strength ≥60 kJ/m²) simplify installation, while their dirt resistance improves maintenance efficiency.
Chemical Storage Tank Floating Roof Supports: Used for floating roof structures of tanks storing acid and alkaline solutions. Their chemical resistance (withstands acid/alkaline solutions with a concentration of less than 90%) and weather resistance ensure long-term crack-free support structures.
Logistics and Packaging
Plastic Pallets: Used in logistics and transportation. PP gray rods' lightweight properties reduce transportation costs, while their high toughness ensures they resist cracking under dynamic loads.
Food Transfer Boxes: Used in food processing plants, their chemical resistance and non-toxicity ensure food safety while increasing economic efficiency at a low cost.
Civil and Construction Applications
Plastic Trash Cans: Used in community and park trash cans. PP ash rods' dirt and chemical resistance extend their service life, while their low cost meets municipal procurement requirements.
Tool Boxes: Used as tool storage boxes in homes and factories. Their lightweight and impact resistance enhances ease of use.
Chemical and Environmental Protection Applications
Chemical Pipe Connectors: Used in flanges, elbows, and other components of acid and alkali pipelines. PP ash rods' chemical resistance (withstands acid and alkali solutions with a concentration of less than 90%) and temperature resistance (short-term resistance to 120°C) ensure long-term sealing of piping systems.
Environmental Equipment Linings: Plastic linings used in sewage treatment equipment. Their chemical resistance (withstands organic solvents in wastewater) and abrasion resistance (Akron abrasion value ≤ 0.12 cm³/1.61 km) extend equipment life.
