Custom Molded Rubber Parts
Precision-Engineered, Application-Driven Elastomer Components Manufactured In-HouseAt Eutsler Technical Products, we specialize in custom-molded elastomer components that deliver precision, durability, and performance in the world’s most demanding service environments.
Our vertically integrated approach—from compound formulation and mold design to precision molding, post-cure, and QA validation—ensures complete control over every variable that affects elastomer behavior.
Whether you need complex geometries, multi-material assemblies, or tight-tolerance sealing components, Eutsler’s molded elastomer solutions provide repeatable quality and superior performance across temperature, pressure, and chemical extremes.
Centralizers
All of our rubber centralizers are 100% custom designed and manufactured.
O-Rings
Eutsler manufactures custom rubber grommets for all industries and applications.
Seals
Eutsler designs and manufactures custom molded rubber seals to meet our clients’ specific parts requirements.
Sleeves
Eutsler designs and manufactures 100% custom rubber sleeves for tubes, tubing, and core sleeves.
Tubes
Eutsler manufactures 100% custom rubber sleeves and tubes.
Gaskets
Eutsler is a custom rubber gaskets manufacturer, specializing in irregular and odd-shaped gaskets.
Grommets
Eutsler manufactures custom rubber grommets for all industries and applications.
Washers
We serve all industries, including automotive, petroleum, oil field service, construction and industrial products.
Comprehensive Molding Capabilities
Compression Molding
- Ideal for large, high-durometer parts and thick cross-sections
- Delivers uniform cure and minimal voiding in solid elastomer blocks
- Suitable for gaskets, bushings, packer elements, and large isolators
Transfer Molding
- Supports intricate shapes, insert molding, and tight dimensional control
- Excellent for bonded assemblies (rubber-to-metal, rubber-to-fabric)
- Reduces flash and provides smooth part surfaces for sealing applications
Injection Molding
- High-volume efficiency with tight process control
- Ideal for small, precision-engineered parts requiring consistency and repeatability
- Closed-loop temperature and pressure control ensures stable curing
Multi-Component & Bonded Molding
- Rubber-to-metaland rubber-to-plastic bonding using advanced primer/tie systems
- Co-curing and hybrid molding for integrated functional assemblies
- Mechanical interlocks, undercuts, or over-molded inserts engineered for stress control
Material Engineering Excellence
Eutsler molds elastomers across a full range of base polymers, each selected and compounded to match your application’s chemical, mechanical, and environmental needs.
| Material Family | Examples | Key Attributes |
|---|---|---|
| General Purpose | NR, SBR, CR | High resilience, impact absorption, abrasion resistance |
| Oil & Fuel Resistant | NBR, HNBR | Hydrocarbon, fuel, and oil compatibility |
| Weather & Steam Resistant | EPDM, CSM | Excellent ozone, aging, and hot water stability |
| High Temperature / Chemical Resistant | FKM, FFKM, TFEP, FVMQ | Outstanding thermal and fluid performance |
| Low Permeability / High Damping | IIR, BIIR | Low gas permeability, vibration control |
| Silicone Family | VMQ, FVMQ | Extreme temperature range, biocompatibility |
All materials are formulated in-house through our Custom Compounding Program, ensuring:
- Optimized cure chemistry for performance consistency
- Controlled hardness and modulus across batches
- Verified rheology and cure kinetics (ASTM D5289)
Precision Manufacturing & Process Control
- Computer-controlled mold presses with temperature uniformity ±3°F across plates
- Cure cycle optimization validated through cure curve profiling
- Vacuum-assisted molding for void-free parts and superior surface finish
- Automated demolding and part trimming for consistent results
- Post-cure ovens with controlled airflow and PID-regulated temperature uniformity
Dimensional & Surface Accuracy
| Feature | Capability / Range |
|---|---|
| Hardness Control | ±5 Shore A across batches |
| Dimensional Tolerance | ±0.005–0.020 in (ARPM A1–A3) |
| Concentricity / Roundness | <0.005 in TIR typical |
| Surface Finish (Sealing Faces) | Ra 16–63 µin |
| Bond Strength (Metal / Fabric) | 10–25 MPa (ASTM D429) |
| Flash Control | <0.005 in on precision molds |
Post-Processing & Finishing Options
- Cryogenic or mechanical deflashing
- Surface grinding, lapping, and precision trimming
- Chamfering and edge conditioning for improved sealing behavior
- Laser marking for part traceability
- Post-cure heat treatment for outgassing and dimensional stabilization
Testing & Quality Assurance
Every elastomer product undergoes comprehensive inspection and testing aligned with Eutsler’s ISO 9001:2015 Quality Management System.
Laboratory Testing:
- Cure Rheology (ASTM D5289)
- Mooney Viscosity (ASTM D1646)
- Tensile / Elongation (ASTM D412)
- Tear Strength (ASTM D624)
- Compression Set (ASTM D395)
- Heat Aging (ASTM D573)
- Fluid Immersion (ASTM D471)
Dimensional & Visual Inspection:
- Coordinate measuring machine (CMM) or optical comparator verification
- 100% visual inspection for surface integrity and flash removal
- Documentation of lot traceability and retained samples
Application Examples
Oil & Gas
- Packer elements, sealing rings, and bonded metal-elastomer tools
- Downhole temperature and pressure seals rated up to 20,000 psi
Aerospace
- Diaphragms, isolators, and dynamic seals for fuel, hydraulic, and cabin systems
Industrial
- Shock mounts, gaskets, pump seals, weather-resistant grommets, and custom vibration isolators
Advantages of Eutsler’s Molded Elastomer Solutions
- Fully Integrated Process: From formulation to molding and final inspection—all under one roof
- Engineered Materials: Compounds tailored to thermal, mechanical, and chemical environments
- Precision Tooling: In-house mold design for reduced cycle times and consistent quality
- Tight Process Control: Advanced press control and real-time cure data acquisition
- Traceability & Documentation: Complete production records, QA data, and retained samples
- Flexible Production: Prototypes to full-scale manufacturing with short lead times
Performance Envelope
| Parameter | Typical Range / Limit |
|---|---|
| Temperature Range | –75 °F to +500 °F (material dependent) |
| Pressure Range | Up to 20,000 psi (geometry-dependent) |
| Durometer Range | 30–95 Shore A |
| Tensile Strength | 1,500–4,500 psi |
| Elongation | 200–800% |
| Compression Set | <25% (70h @ 100 °C) |
| Bonded Assembly Shear | 5–25 MPa |
| Dimensional Tolerance | ±0.005–0.020 in |
From Concept to Production
- Define– Application requirements and environmental conditions
- Design– Material and mold geometry co-engineering
- Develop– Prototype compounding and molding trials
- Validate– Mechanical, thermal, and chemical testing
- Deliver– Certified and traceable molded components
Partner with Eutsler Technical Products
Eutsler delivers precision-engineered molded elastomer products built for real-world endurance.
From the chemistry of the compound to the surface finish of the final part, our integrated process ensures maximum performance, consistency, and reliability.
Custom Rubber Part Specifications
Our presses can mold items from ¼ inch to 30 inches, and we can mold or bond rubber to metal parts. We can create custom blended elastomeric compounds, and we have fast and economical access to today’s best natural and synthetic rubbers, including:
Why Choose Eutsler Technical Products?
R&D
Experienced staff develop high performance and long life parts
Material Selection
Over 300 compounds or custom elastomeric compounds available
Mold Design
Custom molds are designed ensuring tolerances are met
Manufacturing
Molding, extrusion and die cutting services to build your part
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