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Compression Molding
Custom-Designed Products.
The Alternative to Metal
Compression-molded parts offer a strong, lightweight alternative to die-cast, stamped or other formed metal parts due to their superior:
- Corrosion Resistance
- Chemical Resistance
- Heat Resistance
- Fire Retardation
- Weight Profile
- Weather Resistance
- Colorfastness
- Strength
- Microwave Transparency
Processes
Amalga uses a variety of manufacturing processes to meet your requirements:
- Sheet Molding Compound (SMC)
- Low-Pressure Molding Compound (LPMC)
- Bulk Molding Compound (BMC)
- Thick Molding Compound (TMC)
- Structural Molding Compound (SMC)
- Preform and Mat Process
Applications
Amalga Composites manufactures compression-molded products for a variety of applications:
- Medical
- Electrical
- Mechanical
- Transportation
- Dishware
- Sanitary Ware
- Sporting Goods
Engineering Assistance
Our doctoral-level engineering expertise turns ideas into production quicker than metal technology.
Why Choose Compression Molding?
- Low Material Cost
- Fast Cycle Rate
- High Production Volume
- Customized Compounds
- Molded in Color
- Surface Finish - Cosmetic or Textured
- Combined Components - Eliminate Spot-Welded Sub-Assemblies
- Strength - Up to 55,000 psi
- Corrosion Resistant
- Fire Retardant
- Food Grade
- Weight Savings – One Fourth the Weight of Steel
Compression Molding Processes
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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
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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 properties listed do not constitute any warranty or guarantee of values. These properties are for material selection purposes only. For applications requiring guaranteed values, independent verification should be conducted.
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© AMALGA COMPOSITES, INC. ALL RIGHTS RESERVED
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