Polymer Molding
Comprehensive molding capabilities for advanced manufacturing applications
Evantic combines advanced molding technologies and expert process control to produce high-performance parts for diverse industries. With a comprehensive suite of molding techniques, we produce standard shapes, near-net shapes, and finished components – manufacturing both small and large parts to tight tolerances, including thin- and heavy-wall designs.
Our molding capabilities are built around precision and consistency. From tool design considerations to tightly controlled processing temperatures, we ensure uniformity across complex geometries and high-volume applications while minimizing material waste. With deep expertise in high-performance polymers – including custom blended PTFE, PEEK, and PPS – we align the right material with the right molding process to optimize part performance and manufacturability.
Looking for proven plastic molding solutions that scale with your production? Evantic delivers results you can rely on.
In-House Molding Capabilities
Compression Molding
Evantic consistently molds large plastic parts with superior physical properties while maintaining cost efficiency and reduced material weight. Our compression molding platform supports serial production of both near-net shape and finished components across high-performance engineered polymers, including PTFE and PEEK.
With a broad press range from 25 to 3,000 tons and advanced process control, we produce components ranging from small precision parts to large-format industrial geometries. Evantic offers both cold compression molding and high-temperature compression molding (HTCM). Powder-based processes are used for materials such as PTFE, while HTCM supports engineered thermoplastics requiring elevated processing temperatures. With uniform mold temperature capability up to 752°F (400°C), Evantic is equipped to meet the thermal demands of high-temperature applications.
PTFE Cold Compression Molding (with Free Sintering)
Cold compression molding is used to process PTFE into high-performance components through powder compaction and sintering. PTFE powder is formed into a preform under controlled pressure, then sintered to develop its final density, mechanical strength, and dimensional stability.
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This process produces void-free components with excellent uniformity and surface quality. Because PTFE does not exhibit melt flow behavior, compression molding provides precise control over part formation prior to sintering.
Our cold compression molding outperforms extrusion for complex shapes, making it especially well-suited for PTFE components requiring precise geometry and dimensional stability.
High-Temperature Compression Molding (PEEK & Engineered Polymers)
Evantic’s high-temperature compression molding capability supports advanced thermoplastics such as PEEK and modified PTFE formulations requiring elevated processing conditions.
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This process leverages uniform mold control up to 752°F (400°C) to enhance material consolidation during forming, improving structural integrity, density distribution, and consistency in finished components. It is well suited for serial production of engineered plastic parts requiring tight process control and repeatable performance.
Compression Molding Capabilities
- Automatic PTFE compression molding systems
- Proprietary fusion process for modified PTFE fabrication
- Press size range: 25 tons to 3,000 tons
- Part size range:
- O.D. capability: 1.0″ to 50.0″
- Standard length: 12.0″ (up to 60.0″ in select applications)
- Sheet thickness: 1/8″ to 8″
- Uniform high-temperature mold control up to 752°F (400°C)
- Supports PTFE and engineered thermoplastics processing (including PEEK and other applicable materials)
Key Benefits
Key Benefits
- Supports powder-based and high-temperature polymer processing within a single platform
- Scalable production from small precision parts to large industrial components
- Tight control over geometry, density, and material consistency
- Void-free PTFE structures with stable post-sinter performance
- Enhanced consolidation for engineered thermoplastics
- Suitable for complex geometries and high-volume manufacturing
Ideal Applications
Ideal Applications
- Seals, gaskets, and sealing systems
- Valve components and fluid handling parts
- Electrical insulation components
- Chemical-resistant liners and wear components
- High-performance PTFE machined and near-net parts
- PEEK industrial components requiring thermal stability and precision
- Large-format industrial components with tight material requirements
Thermoforming
(Vacuum Forming, Pressure Forming, Drape Forming)
Evantic’s thermoforming capabilities encompass advanced vacuum, pressure, and drape forming techniques.
With vacuum forming, our skilled technicians use powerful vacuums to shape heated plastic sheets over detailed molds, creating precise and intricate parts.
Our pressure forming process goes a step further, using compressed air to achieve even greater detail and definition for critical applications. Complex, contoured shapes can be achieved with drape forming, which involves draping heated plastic sheets over custom molds.
These diverse thermoforming methods allow us to deliver tailored solutions for our customers. We will work closely with your engineering team to address technically challenging thin-gauge and heavy-gauge requirements and ensure all fit, form, and function product design goals are met.
| Comparative Analysis of Evantic’s Thermoforming Technologies | |||
| Thermoforming Process | Formed Dimensions | Tolerances (+/-) | Draw Depth |
| Vacuum Forming | Max. thickness: .375”
Max. width: 48” Max. length: 72” |
.015”* | Up to 17”** |
| Pressure Forming | Max. thickness: up to 3/8”
Max. width: 48” Max. length: 72” |
.015”* | Up to 17”** |
| Drape Forming | Max. thickness: up to 1.0”
Max. width: 48” Max. length: 72” |
.063”* | N/A |
*Ending thickness depends on Geometry
**Depends on tool design and material
Thermoforming Capabilities
Thermoforming Capabilities
- Vacuum, pressure, and drape forming processes
- Maximum part size: up to 4 ft. x 5.5 ft.
- Thin-gauge and heavy-gauge forming capability
- In-house tooling design and fabrication
- Tooling materials: wood, cast aluminum, machined aluminum, and composite molds
Typical Materials
Typical Materials
ABS, Acrylic, CPVC, HIPS, Kydex®, PETG, Polypropylene (PP), PVC
Key Benefits
Key Benefits
- Flexible forming methods for varied part complexity and geometry requirements
- Ability to produce both detailed and large-format components
- Strong capability for thin- and heavy-gauge sheet applications
- Cost-effective tooling options for prototyping and production
- Scalable manufacturing from low to medium production volumes
- Consistent part quality with controlled forming processes
Ideal Applications
Ideal Applications
- Enclosures and housings
- Medical and diagnostic equipment components
- Industrial covers and protective panels
- Protective guards, trays, and formed components
- Custom industrial and OEM plastic sheet components
Isostatic Molding
Evantic’s isostatic molding capabilities enable the production of high-quality near-net-shape PTFE blanks with precise, uniform contours for complex components.
This process applies controlled, uniform pressure from all directions to achieve optimal material compaction. The result is consistent density throughout the part, along with superior tensile, compressive, and dielectric strength. Isostatic molding also produces a low-porosity, defect-resistant surface structure that supports high-performance applications requiring maximum material integrity.
Our isostatic molding capabilities support the efficient manufacturing of molded parts, linings, and seals with reduced material waste and minimized post-processing requirements. The process also helps reduce shrinkage during sintering and improves dimensional stability in finished components.
Isostatic Molding Capabilities
Isostatic Molding Capabilities
- Production of near-net-shape PTFE blanks
- Uniform compaction for consistent density and structure
- Formation of complex contours and geometries
- Reduced machining and post-processing requirements
- Improved dimensional stability through reduced shrinkage and void content
Typical Forms
Typical Forms
- Rods
- Cylinders
- U-shapes (cross sections)
Standard Sizing
Standard Sizing
- Length: up to 30″
- Outer diameter: up to 6″
- Custom tooling available for specialized requirements
Key Benefits
Key Benefits
- Optimal material utilization with minimized waste
- Reduced machining and post-processing requirements
- Lower shrinkage during sintering and reduced void content
- Superior uniformity of mechanical and dielectric properties
Ideal Applications
Ideal Applications
- Pressure vessels
- Liners for reactors, pumps, and valves
- Isolation shrouds and protective sheaths
Secondary Options & Finishing
Molded shapes and components integrate seamlessly with our broader manufacturing capabilities to meet exacting requirements across machining, secondary processes, assembly, and packaging.
Precision CNC Machining
Achieve tight-tolerance geometries and critical dimensions through advanced multi-axis machining for molded components.
Specialty Processes
Modify and tailor molded components using in-house annealing, curing, skiving, and etching to optimize material behavior and surface performance.
Let Us Help You Select the Right Molding Process for Your Application.
Our team can help you evaluate materials, geometry, and performance requirements to determine the best molding solution for your part.
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