High Density Polypropylene (HDPP)

Properties of High Density Polypropylene (HDPP)

HDPP M60075 is a high-crystallinity polymer with outstanding resistance to chemicals, good heat stability, and low moisture absorption.

• Tensile Strength: ~35 MPa
  
  
• Flexural Modulus: ~1500 MPa
  
  
• Elongation at Break: ~200 %
  
  
• Density: 0.95 g/cm³
  
  
• Heat Deflection Temperature (0.45 MPa): ~95 °C
  
  
• Melting Point: ~165 °C
  
  
• Notched Impact Strength (23 °C): 4–6 kJ/m²
  
  
• Moisture Absorption: <0.01 %
  
  
• Excellent chemical and fatigue resistance
  
  

This combination of lightweight strength and processability makes HDPP M60075 ideal for demanding injection moulding applications.

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Pros of High Density Polypropylene

• High stiffness-to-weight ratio
  
  
• Excellent chemical and corrosion resistance
  
  
• Low moisture absorption for stable performance
  
  
• Outstanding fatigue and crack resistance
  
  
• Excellent electrical insulation
  
  
• Good processability and flow in injection moulding
  
  
• Recyclable and environmentally friendly
  
  
• Cost-effective for large-scale production
  
  

Cons of High Density Polypropylene

• Limited performance under prolonged high heat (>100 °C)
  
  
• Moderate impact strength compared to ABS or Polycarbonate
  
  
• Prone to UV degradation without stabilizers
  
  
• Difficult to bond with adhesives due to low surface energy
  
  

Applications of High Density Polypropylene

HDPP’s balance of strength, lightness, and chemical resistance makes it suitable for a wide variety of applications across industries.

• Automotive: Battery cases, fuel system parts, reservoirs, and trims
  
  
• Industrial: Chemical containers, valves, fittings, and storage tanks
  
  
• Consumer Products: Caps, closures, packaging, and reusable containers
  
  
• Electrical & Electronics: Insulation parts, appliance housings, and cable components
  
  
• Healthcare: Non-reactive housings and disposable medical containers
  
  
• Agricultural & Chemical Processing: Pipe fittings, pump components, and chemical storage applications
  
  

At Amuse3D, we work with HDPP grade M60075, an injection moulding-optimized formulation designed for producing durable, lightweight components with excellent dimensional accuracy. Our engineering expertise ensures consistent results across high-volume production while maintaining strength and surface quality.

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Machining & Finishing Options

Our injection moulding process for HDPP M60075 is designed to optimize flow, minimize shrinkage, and maintain consistent wall thickness.

• Controlled melt temperature (200–240 °C) and mould temperature (40–70 °C) for stable crystallinity
  
  
• Textured, matte, or smooth finish options
  
  
• UV- and heat-stabilized grades available
  
  
• Additive compatibility for colour, anti-static, and flame-retardant requirements
  
  
• Process monitoring for warpage and shrinkage control
  
  

By combining precise moulding technology with expert handling, Amuse3D ensures durable, cost-efficient HDPP parts across industrial and consumer markets.

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Comparison to Alternatives

• Versus Polypropylene (PP): HDPP offers greater rigidity, strength, and chemical resistance but slightly reduced flexibility.
  
  
• Versus Polyethylene (LDPE): HDPP is denser and more temperature-resistant, making it better suited for structural applications.
  
  

These advantages make HDPP M60075 a preferred material for components requiring durability, stability, and chemical endurance.

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Conclusion

High Density Polypropylene (HDPP M60075) combines strength, chemical resistance, and lightness, making it an ideal choice for high-performance, injection-moulded parts. At Amuse3D, we transform this versatile polymer into precision components that deliver long-term reliability and consistent quality. Explore our Injection Moulding Services to see how Amuse3D enables scalable manufacturing, or Get an Instant Quote to start your next HDPP project today

Read more about Polypropylene(PP)