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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, feel and look of metal can denote luxury and quality, such as spirits caps and closures, high-quality surface finishes and handles for oral and skincare products, and in more functional applications including golf clubs, cutlery, fishing tackle and other outdoor accessories where heft is necessary for optimal performance. The high-impact polypropylene (PP)-based grades offer an excellent combination of impact, density, flowability, and colorability properties.

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 (1.2 - 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
  • Can be metalized or electroplated to deliver the look and feel of metal
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Safety Data Sheets

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Technical Data Sheets

Browse our library of product data sheets containing technical descriptions and details.

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Technical Literature

Technical information, design guides, processing information and more.

Resources
NAME CATEGORY DESCRIPTION  
Gravi-Tech Density Modified Formulations - Design Guide for Luxury Closures Processing & Design Guides How Gravi-Tech makes the difference for packaging closures in the luxury cosmetics and spirits markets View
Gravi-Tech™ - Product Bulletin (Chinese) Product/Service Overview Product description, value solution, characteristics, markets and end-use applications (Chinese language version) View
Gravi-Tech™ - Product Bulletin (English) Product/Service Overview Product description, value solution, characteristics, markets and end-use applications (English language version) View
Gravi-Tech™ Density Modified Formulations - Design Guide Processing & Design Guides Gravi-Tech™ polymer-metal composites are high density materials developed as thermoplastic-based alternatives to lead and other traditional metals View
Gravi-Tech™ Density Modified Formulations and Versaflex™ TPEs for Cosmetics Packaging Video Enhance your cosmetic packaging with Gravi-Tech and Versaflex solutions View
Gravi-Tech™ Density Modified Formulations and Versaflex™ TPEs for Cosmetics Packaging (Chinese) Video Enhance your cosmetic packaging with Gravi-Tech and Versaflex solutions (Chinese language version) View
Gravi-Tech™ Density Modified Formulations Extended Version Processing & Design Guides Injection molding parameters and troubleshooting recommendations for Gravi-Tech™ View
Gravi-Tech™ Density Modified Formulations Extended Version (Chinese) Processing & Design Guides Injection molding parameters and troubleshooting recommendations for Gravi-Tech™ (Chinese language version)   View
Gravi-Tech™ Density Modified Formulations for Luxury Cosmetics and Spirits Packaging Application Overview Add weight and aesthetics to your luxury packaging closure designs with density modified formulations View
Gravi-Tech™ E2 Meat Box Case Study (Snapshot) Gravi-Tech™ formulations enable magnetic detection and color matching for E2 meat box.  View
Gravi-Tech™ Knife Handle Case Study (Snapshot) Gravi-Tech™ replaces aluminum in premium kitchen knife handle View
Gravi-Tech™ Luxury Closure (English & Spanish) Case Study (Snapshot) Gravi-Tech™ replaces metal and maintains a high quality look and feel for luxury closure (English & Spanish language version) View
Gravi-Tech™ Luxury Closure (English) Case Study (Snapshot) Gravi-Tech™ replaces metal and maintains a high quality look and feel for luxury closure (English language version) View
Gravi-Tech™ Luxury Closure (Spanish) Case Study (Snapshot) Gravi-Tech™ replaces metal and maintains a high quality look and feel for luxury closure (Spanish language version) View
Gravi-Tech™ Perfume Cap Case Study (Snapshot) Gravi-tech density modified formulations provide metallic finish in perfume cap View
Gravi-Tech™ Portable Speaker Component Case Study (Snapshot) Gravi-Tech™ solution replaces metal, providing greater design freedom for portable speaker component View
Gravi-Tech™ Tequila Bottle Closure Case Study (Snapshot) Gravi-tech density modified formulations simplify processing of bottle closure View
Hearing Protection Headset Case Study (Snapshot) Gravi-Tech formulations meet acoustic performance test and reduce weight in ear defenders.  View
Kitchen Knife Handles Article Cutlery manufacturer expands product line with dishwasher-safe knife handles featuring stainless steel-filled Gravi-Tech™ compound View
Luxury Spirit Cap Case Study (Snapshot) Customized Gravi-Tech™ formulation allowed electroplating to achieve weight, look and feel of metal View
Luxury Toothbrush Base Case Study (Snapshot) Gravi-Tech™  replaces metal and maintains performance for luxury toothbrush base View
Plastic Piping System Flapper Valve - Case Study Case Study Gravi-Tech™ density modified formulations replaces brass in pipe valve View
Premium Spirits Closures - Case Study (English) Case Study Distinguished Gravi-Tech™ high-density closures are focused on luxury perception as showcased in the spirits industry (English language version) View
Premium Spirits Closures - Case Study (Spanish) Case Study Distinguished Gravi-Tech™ high-density closures are focused on luxury perception as showcased in the spirits industry View
Spirit Bottle Cap Disk Case Study (Snapshot) Gravi-Tech™ formulation replaced metal and enabled PVD metallization for a luxury closure manufacturer View
Spirit Bottle Caps Case Study (Snapshot) Gravi-Tech™ material delivered customized density and supported electroplating to give the look and feel of metal View

Gravi-Tech™ High Density Formulations

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