Amalga Composites, Inc.Compression Molding
Custom Designed Products

PleniumThe Alternative to Metal
Compression Molded parts offer a strong, lightweight alternative to die-cast, stamped or other formed metal parts.

Fiber Reinforced Plastic molded components provide an excellent alternative to metal for:

  • Corrosion Resistance
  • Chemical Resistance
  • Heat Resistance
  • Fire Retardant
  • Weight Reduction
  • Weather Resistance
  • Colorfastness
  • Strength
  • Microwave Transparency
Processes...Applications
Amalga has the ability to provide a variety of different manufacturing processes to meet the varying requirements of our customers. These processes, combined with a variety of different compounds, can provide products which meet your exacting specifications. Compression Molded products are utilized in a variety of different applications.
  SMC: Sheet Molding Compound

  SMC: Sheet Molding Compound

  LPMC: Low Pressure Molding Compound

  BMC: Bulk Molding Compound

  TMC: Thick Molding Compound   SSMC: Structural Molding Compound

  Preform and Mat Process

   Medical

  Electrical

  Mechanical

  Transportation

  Dishware

  Sanitaryware

  Sporting Goods

Engineering Assistance

Amalga's doctoral-level engineering expertise provides quick and detailed assistance in getting your ideas into production quicker than metal technology.

 Why Choose Compression Molding?

  1. Low Material Cost
  2. Fast Cycle Rate
  3. High Production Volume
  4. Customized compounds
  5. Molded in color
  6. Surface Finish - cosmetic or textured
  7. Combined components - eliminate spot welded sub-assemblies
  8. Strength - up to 55,000 psi
  9. Corrosion Resistance
  10. Fire Retardant
  11. Food Grade
  12. Weight Savings - 4 times lighter than steel
Compression Molding Processes
Bulk Molding Sheet Molding Thick Molding SMC Random Fiber SMC-Chop/Continuous Preform
Bosses & Ribs Yes Yes Yes Yes No No
Cosmetic Appearance Good Good Good Fair Fair Fair
Type of Part Casting Stamping Cast & Stamping Casting Casting Stamping
Size of Part Small Large Medium Large Large Large
Tensile Strength (psi) 5,000 12,000 10,000 23,000 55,000 14,000
Flexural Strength (psi) 15,000 26,000 22,000 37,000 85,000 28,000
Specific Gravity 1.90 1.75 2.00 1.85 1.80 1.20


Process Comparison to Steel
Sheet Molded Compound Injection Molded Thermoplastic Aluminum
Part Consolidation Excellent Excellent Fair
Comparable Mass 75% 70% 75%
Corrosion Resistance Best Better Good
Impact Resistance Best Better Poor
Tooling Cost 40% 60% 100%
Stiffness 6% 2% 30%
Thermal Expansion 100-130% 600-1000% 170-200%

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The Composite Professionals at Amalga Composites

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