custom molded rubber goods
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About Rahco

Material Control
Molding
Insert Molding
Secondary Operations
Finishing
Quality Control
Rahco Materials
Email Addresses
ISO Certification
Where to find Rahco Rubber

Rahco Rubber Inc.
888-88RAHCO
1633 Birchwood Ave.
Des Plaines, IL 60018
Phone - 847-298-4200
Fax - 847-298-4201
sales@rahco-rubber.com

The Right Design For Your Application
We are genuinely concerned with satisfying your rubber requirements. To do this we need to know your complete service expectations for the part and assembly. Then, through mold design, compound development, and production techniques, we can determine the most economical method for manufacturing a quality part.

TPR & LSR
Custom Molding of Engineered Thermoplastic Materials Using All Grades of Santoprene & Kraton
  • Injection molding of high precision, tight tolerance components
  • Liquid injection silicone molding
  • Special grades of Santoprene
  • Engineered to be used in place of
    • Nitrile
    • Epichlorohydrin
    • EPDM
    • Polychloroprene
    • Chlorosulfanated Polyethylene
  • Colorable grades for use in food processing equipment and plumbing applications in contact with potable water
  • Special high flow grades used to overcome uncontrollable part warpage
  • Special services also include concept to production stages
  • Prototyping
  • Mold flow analysis (following) used to determine unknown variables such as part warpage, sink fill-time, pack-time, etc.
    • Optimize gate size & locations
    • Optimize number of gates
    • Minimize and balance runner system
    • Uniform filling conditions
    • Minimize stress levels
    • Weld line location
    • Evaluate potential warpage concerns
    • Pressure and temperature distribution
    • Optimize processing conditions, i.e. melt temperature, injection rate and pressure
  • Mold packing analysis:
    • Volumetric shrinkage analysis (part warpage indication)
    • Sink mark analysis
    • Optimize second stage pressure