The Global Sealing Express
 
 
June 2009

Got a Challenging Seal Application? Kalrez® Custom Shapes Can Solve It!

Kalrez Custom Part

Are you experiencing repeated seal failure in your chemical process? Do you require the most chemically resistant seal designed specifically for your application? In both cases, the solution is probably a Kalrez® custom shape.

Here's why
When you specify a Kalrez® custom shape, you get DPE's highest performing elastomer seal coupled with the capability to customize a part to meet, or exceed, your expectations. DPE's global custom shapes manufacturing facilities are now better than ever, and set the industry standard in meeting custom sealing needs.

We offer:
  • Four new state-of-the-art computer-controlled vacuum presses at our Tralee Park, USA, facility, giving you blister-free custom shapes fast and competitively,
  • A broad range of enhanced processing and performing products for custom shape applications. Choose from all compounds including Kalrez® 6380, 7090, 6190, 7075 and 8085, with more in the pipeline - one or more is sure to fit your application,
  • A dedicated team of Custom Part Engineers to design, develop and manufacture custom shapes to meet your needs precisely,
  • World class Finite Element Analysis to support the design and application modelling of your custom shape,
  • Quick machined and molded prototypes for evaluation in your process,
  • Flashless transfer molding, non-molded tubing, state-of-the-art programmable lathe and axis water jet cutting,
  • The benefit of R&D, manufacturing and applications expertise offered by our technical centers around the world.


  • Which of these do you need?
    Choose from:
  • Standard bonded door seals for semicon process chambers,
  • Standard sanitary and hygienic seals,
  • Complex geometry parts and small complex parts with ultra tight tolerances,
  • Small metal bonded parts for high volume applications.


  • How to get a quote
    Simply fill in and return this form for a "Kalrez® Application Quote", with no obligation. Click here to download quote form.

    Commercial successes with Kalrez® custom shapes
    The following are just three of many Kalrez® custom parts programs that became commercial successes:

  • New ITT-Flojet G57C pump relies on Kalrez® custom diaphragms for ultimate chemical resistance


  • ITT-Flojet®, a recognized leader in industrial pumps, chose a specially developed custom Kalrez® 6190 double diaphragm part for its new G57C Series air operated industrial pump, to provide the ultimate in chemical resistance in applications such as chemical transfer, parts washers, ink transfers and car wash systems.

    Custom Diaphragms
    Specially developed Kalrez® custom double diaphragm parts for new ITT-Flojet® G57C Series air operated industrial pump provide outstanding chemical resistance in chemical transfer, parts washers, ink transfers and car wash systems.

    The company called on DuPont Performance Elastomers state-of-the-art custom shapes service to design the four-part Kalrez® diaphragm kit that forms the heart of the Flojet G57C pump. The complex geometry parts, molded to very tight tolerances, are prime examples of DPE's excellence in custom shapes design and manufacture

  • Kalrez® custom valve seal proven over 7 years in ink jet units


  • A spray technology leader required a custom designed shut-off valve seal for its ink jet equipment that would provide long-term resistance to aggressive cleaning solvents. Working with their Kalrez® Authorized Distributor, DPE's custom parts engineers responded very rapidly with a prototype with Kalrez® 7075 perfluoroelastomer parts for the ink jet application. In the seven years since first installed in the ink jet units, the Kalrez® valve seals have offered trouble-free service and excellent performance in the cleaning solvents used.

    Custom Part Inkjet
    Kalrez® 7075 shut-off valve seal in ink jet equipment offers many years service in aggressive cleaning solvents.


  • Kalrez® custom part resists aggressive electrolyte chemicals, prolongs battery life


  • A specialist battery assembly manufacturer asked DPE's Kalrez® custom parts engineers to solve a critical electrolyte sealing problem in batteries to power medical devices.

    Custom Part Boston
    Custom seal (black section) of Kalrez® 6190 perfluoroelastomer parts resists aggressive electrolyte chemicals in battery assemblies, eliminating seal deterioration and leakage, and prolonging battery life.

    Rubber/steel stoppers are used to seal the battery units at the electrolyte filling station on the assembly line. Several rubber materials, including FKM, had been tried but failed to resist the aggressive chemicals used, causing air damage to the electrolytes, and potentially hazardous leakage.

    The solution was replacement of FKM with Kalrez® 6190 custom parts made by proprietary DPE process that forms an excellent bond with the metal component. Since switching to Kalrez® in 2008, the battery stoppers have exhibited no degradation or leakage, thus prolonging safe battery life in this exacting medical device application.

     
         
         
         
         
         
         
         
         
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      Kalrez® Custom Parts May Be Your Sealing Answer!  
         
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      Upcoming Paper at International Conference - Fluid Sealing  
         
      Sealing Express Main Page  
         
         
      European Sealing Express No. 1, May 2007  
         
      Global Sealing Express No. 1, June 2008  
         
      Global Sealing Express No. 2, January 2009  
         
         
         
         
         
         
      Kalrez® perfluoroelastomer parts for demanding sealing applications from DuPont Performance Elastomers