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Density Modified Formulations

Gravi-Tech™ Density Modified Formulations

Weight Without Compromise

Gravi-Tech™ polymer-metal composites are unique, high-density materials developed as effective alternatives to lead and other traditional metals. Formulated using select metallic fillers and engineered thermoplastic resins, these solutions offer densities similar to traditional metals while also providing design and processing flexibility because it can be extruded, molded, calendered or thermoformed into the final desired shape.

These customized density solutions are an excellent choice for applications where the touch and feel of metal can denote luxury and quality, such as spirits caps and closures, and in more functional applications like golf clubs, cutlery, fishing tackle and other outdoor accessories where heft is necessary for optimal performance.

In addition, several radiation-shielding grades are available to provide protection similar to lead-based materials at lighter weights or can match the density of lead when needed.

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Impact

  • Customized density with a wide range of specific gravities (1.5 - 11 gm/cm3)
  • Broad modulus range, from very flexible to very rigid grades
  • Corrosion resistance
  • Chemical resistance
  • Design flexibility
  • Good impact strength
  • Elevated heat deflection temperature

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Technical Literature

Technical information, design guides, processing information and more.

RESOURCES
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Name Category Description  
Gravi-Tech™ - Product Bulletin
Product Bulletin
Product description, value solution, characteristics, markets and end-use applications
Gravi-Tech™ - Product Bulletin (Chinese)
Product Bulletin
Product description, value solution, characteristics, markets and end-use applications
Gravi-Tech™ Density Modified Formulations - Design Guide
Design Guide
Gravi-Tech™ polymer-metal composites are high density materials developed as thermoplastic-based alternatives to lead and other traditional metals
Gravi-Tech™ Density Modified Formulations Extended Version - Processing Guide
Processing Guides
Injection molding parameters and troubleshooting recommendations for Gravi-Tech™
Gravi-Tech™ Density Modified Formulations Extended Version - Processing Guide (Chinese)
Processing Guides
Injection molding parameters and troubleshooting recommendations for Gravi-Tech™ 
Gravi-Tech™ High Density Beverage Closures - Application Bulletin
Application Bulletin
Attain a luxury feel in beverage packaging with Gravi-Tech™ high density closures that stimulate the senses
Gravi-Tech™ Knife Handle - Case Study
Case Study (Brief)
Replaced aluminum while providing the same premium weight and feel of metal
Premium Spirits Closures - Case Study
Case Study
Distinguished Gravi-Tech™ high-density closures are focused on luxury perception as showcased in the spirits industry

Gravi-Tech™ High Density Formulations

Benefits & characteristics of this high performance alternative to lead and other traditional metals

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