Compression Molding
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Why choose Metal Market?
- Parts as fast as 10 days
- Tight tolerances as low as +/- 0.02"
- Lower tooling costs than injection molding
- Ideal for low to medium volumes
- 9 certified materials available
Why choose compression molding?
High-quality molded rubber and composite parts with lower tooling costs than injection molding. Ideal for producing durable parts with excellent material properties.
Lower Tooling Costs
Significantly reduced tooling investment compared to injection molding, making it cost-effective for low to medium volumes.
Large & Complex Parts
Ideal for manufacturing large, intricate parts that would be difficult or expensive to produce with other methods.
Material Versatility
Work with a wide range of rubber and composite materials including silicone, EPDM, and polyurethane.
Consistent Quality
Produce parts with excellent dimensional stability and consistent mechanical properties across batches.
Our compression molding capabilities
From prototypes to production runs, our compression molding services deliver high-quality rubber and composite parts with precision and consistency.
Rubber Compression Molding
Produce durable rubber parts with excellent elasticity, chemical resistance, and longevity. Ideal for seals, gaskets, and industrial components.
- Silicone, EPDM, NBR, and more
- Custom hardness and durometer
- Temperature resistant materials
Composite Compression Molding
Create strong, lightweight composite parts for demanding applications. Perfect for automotive, aerospace, and industrial uses.
- High strength-to-weight ratio
- Complex geometries possible
- Excellent surface finish
Gallery of compression molded parts
Here's a selection of compression molded rubber and composite parts we've produced for our customers.
Compression molding materials
We offer 9 certified materials for compression molding, each with unique properties suited for different applications.
Silicone
Excellent temperature resistance (-60°C to 230°C), biocompatible, and highly flexible. Ideal for medical, food, and high-temperature applications.
- Temperature resistant
- FDA compliant options
- Excellent flexibility
EPDM Rubber
Outstanding weather, ozone, and UV resistance. Perfect for outdoor applications, automotive seals, and roofing components.
- Weather resistant
- UV stable
- Good chemical resistance
NBR (Buna-N)
Excellent oil and fuel resistance. Commonly used for automotive seals, gaskets, and industrial applications requiring oil contact.
- Oil resistant
- Fuel resistant
- Good abrasion resistance
SBR (Styrene-Butadiene Rubber)
Natural Rubber (NR)
Neoprene (CR)
FKM (Viton)
HNBR
Polyurethane (PU)
We can source other materials on request. Contact us for specific material requirements.
Precision molded tolerances
Part lengths of up to 1000mm × 600mm available. Tolerances listed are minimums for ideal cases.
| Dimension Type | With Drawing | Without Drawing |
|---|---|---|
| Linear Dimension | +/- 0.01 mm (+/- 0.004 inch) | SPI Commercial |
| Hole Diameters | +/- 0.005 mm (+/- 0.002 inch) | SPI Commercial |
Compression molding finishing options
All finishes meet SPI standards for quality and consistency.
Surface Finishes
SPI polished finishes and MT (MoldTech) textured finishes for various aesthetic and functional requirements.
Pad Printing
Applying an ink-based, 2D design to a 3D surface for branding, part identification, or decorative purposes.
Color Matching
Standard colors plus matching to Pantone or RAL number for brand consistency and specific color requirements.
Our ordering process
Upload CAD file
Securely upload your part design to our online quote builder
Confirm specs
Configure your part specifications and select a lead time
Receive quote
Get an instant quote for your parts
Manufacturing
We select the best manufacturer and production begins
Quality control
We ensure parts are manufactured to our standards
Delivery
Your parts are delivered to your door
Specialist industries
Compression molding is widely used across industries requiring durable rubber and composite components.
Automotive
Seals, gaskets, bushings, and vibration dampeners for vehicles and automotive systems.
Medical
Biocompatible silicone components for medical devices, seals, and healthcare equipment.
Industrial Machinery
Heavy-duty rubber components, seals, and protective parts for industrial equipment.
Aerospace
High-performance seals and components meeting strict aerospace standards.
Our other manufacturing capabilities
CNC machining
Milling (3-, 4- & full 5-axis), turning and post-processing
- 50+ metals and plastics & 10 surface finishes
- Tolerances down to ±0.0008" (0.020 mm)
- Lead times from 5 business days
3D printing
FDM, SLS, MJF, SLA
- Dimensional accuracy from 0.2%
- 25+ plastics & 35+ colors
- Lead times from 1 business day
Injection molding
Prototypes and production tooling
- Wide range of part complexities and sizes
- 1 to 1M+ parts production capacity
- Lead times from 10 business days
Sheet metal fabrication
Laser cutting, bending, post-processing
- 6 metals & 9 surface finishes
- Tolerances down to ±0.004" (0.010 mm)
- Lead times from 5 business days
Die casting
High & low pressure casting
- Certified aluminum, zinc & magnesium alloys
- Tolerances as low as +/- 0.003"
- Samples as fast as 10-15 days
Urethane casting
Production quality at low volumes
- ABS-like, Nylon-like, elastomer materials
- Parts as fast as 10 days
- 10-200 units per project
Metal stamping
Progressive die, deep draw, fourslide
- Steel, stainless steel, copper & brass
- Tolerances as low as +/- 0.003"
- Production volumes up to 1M+ parts