Jefferson Rubber Works manufactures precision-molded rubber components using medical-grade silicone and other elastomers for regulated applications. We support medical, automotive, and health and safety OEMs with liquid silicone molding, injection molding, and transfer molding processes designed for consistent, medium to high-volume production.
Medical device manufacturers require components that meet strict regulatory requirements while maintaining consistent performance and production timelines. Jefferson Rubber Works has produced FDA-compliant rubber components for medical applications since 1975, supported by ISO 13485-certified processes, cleanroom manufacturing, and full material traceability.
Before selecting a supplier, it is important to understand what qualifies materials and processes as “medical grade” in regulated manufacturing environments.
What Defines ‘Medical Grade’?
The term “medical grade” refers to materials and manufacturing processes that meet defined regulatory requirements for biocompatibility, sterility, and traceability. For silicone materials, this typically includes compliance with USP Class VI testing to verify suitability for contact with human tissue or bodily fluids.
FDA-Compliant Rubber Manufacturing Requirements
Producing FDA-compliant rubber components requires more than approved materials. The entire manufacturing process must control contamination, traceability, and documentation from incoming material verification through molding, inspection, and packaging.
ISO 13485 Quality Systems and Traceability
For medical device manufacturers, regulatory compliance depends on documented quality systems and complete traceability across every production lot.
ISO 13485 governs the quality management system used for medical device manufacturing. To meet this standard, our operations include:
- Full batch traceability for each production lot
- Validated processes with documented controls
- Risk management procedures across the product lifecycle
- Cleanroom manufacturing for contamination-sensitive components
ISO 9001 supports consistency across production operations, while ISO 13485 adds the documentation and process controls required for medical device compliance. In combination with ISO 13485, we generate the exact documentation and process control data that regulatory submissions require.
Material compliance begins with approved suppliers and certified raw materials. Each batch of medical-grade silicone is verified prior to production, with records linking finished components to specific material lots to support device history file requirements.
Precision Molding for Medical Grade Silicone Components
Once materials and quality systems are defined, manufacturing performance depends on the molding process itself.
Precision molding processes convert approved materials into finished parts that meet defined dimensional tolerances. Liquid silicone molding supports complex geometries and thin-wall designs, while injection and transfer molding processes enable higher-volume production with consistent part quality.
Cleanroom Manufacturing and Contamination Control
In addition to precision molding, environmental control plays a critical role in maintaining part integrity in medical applications.
In-process inspections occur at defined intervals rather than relying solely on final inspection. This approach identifies variation early and prevents nonconforming material from advancing through production. Statistical process control is used to monitor key characteristics and verify process stability.
In-Process Inspection and Validation
Maintaining consistency across production runs requires continuous monitoring, not just final inspection.
Cleanroom manufacturing reduces particulate contamination during molding and packaging. Controlled environments maintain defined ISO air-quality classifications based on application requirements, with validated cleaning procedures and controlled material flow to minimize the risk of contamination.
Documentation and Regulatory Support
Beyond manufacturing, QA teams require complete documentation to support validation, traceability, and regulatory submissions.
Documentation packages include dimensional reports, material certifications, and process validation data. These records support design verification, regulatory submissions, and ongoing quality requirements.
Custom Medical Silicone Components and Secondary Operations
Many medical components require additional processing beyond molding to meet final design and performance requirements.
Custom molding solutions address application-specific requirements. Capabilities such as rubber-to-metal bonding reduce assembly complexity, while precision machining supports post-molding operations when tighter tolerances or secondary features are required.
Why Medical OEMs Choose Jefferson Rubber Works
Whether developing a new device or transferring production, our engineering team works with the design and QA teams to evaluate manufacturability, optimize tooling strategies, and identify potential production risks before making a tooling investment.
For OEMs evaluating suppliers, manufacturing capability alone is not enough. Consistency, documentation, and scalability determine long-term production success.
- ISO 13485-certified manufacturing processes aligned with medical device requirements
- Cleanroom production environments for contamination-sensitive components
- High-volume molding capability supported by advanced injection molding equipment
- Full material traceability from raw material through finished component
- Engineering collaboration during design for manufacturability (DFM) and tooling development
Medical Grade Silicone Manufacturing for Regulated Applications
Jefferson Rubber Works supports high-volume production of medical-grade silicone components with the process controls and documentation required for regulated applications.
Submit a Medical Part RFQ to review your specifications, material requirements, and validation needs. Our team will develop a manufacturing approach aligned with your regulatory and production requirements.