Mina Product Development
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    • Compression Molding >
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Phone: 714.966.2150
sales@minaproducts.com

Compression Molding


What is Compression Molding?

Compression molding is a developed process in which the molding material is placed in an open, heated mold cavity. The mold is typically made from machined steel which allows for a long service life. The mold is then closed with extreme pressure to force the fiber and resin compound into contact with all areas of the mold cavity. Pressure and heat are maintained until the molding material has cured.

The process employs thermosetting resins with short or long chopped fibers for 
high-strength fiber reinforcements which equates to additional part strength.

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A distinct advantage of compression molding is its ability to mold tiny to giant, complex parts with features, such as holes, that would otherwise require post-machining with other processes.    
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Advantages of Compression Molding

  • Cost-effective
  • Efficient
  • Fast set-up time
  • Capable of large size parts
  • Wastes very little material
  • Fewer knit lines and less fiber-length degradation than injection molding
  • Ability to create complex parts
  • Allows for longer fibers than plastic injection molding, which results in stronger & stiffer material creation

Industry Applications

  • Medical
  • Military
  • Automotive
  • Research
  • Automotive
  • Aeronautics
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Compression Molding

Superior to Metal Parts 

  • Corrosion Resistance
  • Chemical Resistance
  • Heat Resistance
  • Fire Retardation
  • Weight Profile
  • Weather Resistance
  • Colorfastness
  • Strength

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Compression Molding Offers Many Benefits

Compression Molding and Part Complexity: 
Compression molding allows for very long fibers, to the tune of one inch or more, to be integrated into complex shapes. Longer and additional fibers provide a much stronger and stiffer material than the shorter/fewer fibers integrated within injection molded components or products.

Compression Molded Parts Replacing Metal:
With the ability to mold very complex parts, we are able to manufacture parts designed for metal and more easily adapt them to compression molded parts without having to change much geometrically. This simply isn't possible with traditionally laminated composite methods without requiring extensive post fabrication machining.

Low Cost Parts:
​Compression molded parts are often cheaper than expected. It is not uncommon for certain composites to produce a finished and complex part in under 20 minutes. Low material scrap, reduced labor, high part yields, and less part inspections all factor into your total cost savings.
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Questions? Contact Us!
Rapid Prototyping 
Injection Molding
Machine Shop Services
Mina Product Development, Inc.
3020 Redhill Avenue 
Costa Mesa, CA 92626
​Tel: (714) 966-2150
Fax: (714) 884-4760
  • Rapid Prototyping
    • Stereolithography
    • Fused Deposition Molding
    • Compression Molding >
      • Silicone Prototypes
    • Rapid Prototyping for Entrepreneurs
  • CNC
  • Injection Molding
    • Silicone Molds & Polyurethane Products
  • Projects
  • Contact Us
    • About Mina
  • ISO Certs
  • Videos