MFGsourcing empowers global brands with vertically integrated, precision-driven custom silicone rubber compression molding. We are your dedicated partner, seamlessly guiding complex projects from Engineering Validation (EVT) and Design Validation (DVT) through Production Validation (PVT) to full-scale manufacturing. Experience scalable, high-fidelity solutions crafted for demanding applications across automotive, medical, consumer electronics, and industrial sectors.

Partner with MFGsourcing for uncompromising silicone solutions. Leverage our technical mastery, stringent quality, and commitment to your success across the entire product lifecycle. Contact us to transform your silicone component vision into reliable, high-performance reality.

Our Technical Manufacturing Excellence:

1. Tooling Fabrication: Precision CNC machining of hardened steel or aluminum molds, designed for optimal cavity fill, venting, and longevity. Rigorous DFM analysis minimizes risk.

2. Material Preparation: Precise weighing and mixing of medical-grade or industrial silicone (LSR or HCR) with pigments/additives. Controlled environment prevents contamination.

3. Preform Cutting: Mixed compound is precisely cut into pre-weighed charges ensuring consistent volume for each cavity.

4. Mold Preparation & Loading: Molds are meticulously cleaned and pre-heated. Preforms are manually or robotically placed into cavities.

5. Compression Molding: Hydraulic press closes the mold under calibrated pressure (typically 100-200+ bar) and controlled temperature (typically 150-200°C). Material flows and cures within the cavity.

6. Curing: Precise time-at-temperature control ensures complete cross-linking and optimal physical properties.

7. Demolding: Cured parts are carefully removed, often using ejector pins or air blasts. Cycle times are optimized for efficiency.

8. Post-Processing:

   • Deflashing: Removal of excess material (flash) via cryogenic deflashing (LN2), tumbling, or precision manual trimming.

   • Cleaning: Ultrasonic cleaning or specialized washes ensure pristine surfaces.

   • Secondary Bonding/Assembly: Reliable adhesion to metals, plastics, or other substrates if required.

   • Surface Treatment: Plasma treatment or coating application for enhanced adhesion or specific surface properties.

   • Curing (Post-Cure): Optional thermal post-cure for specific grades to achieve final properties.

9. Comprehensive Quality Control:

   • In-Process: Dimensional checks, visual inspection, weight verification.

   • Final Inspection: 100% or AQL sampling per ISO 2859-1. Advanced capabilities include:

     • Dimensional Verification (CMM, Optical Comparators)

     • Durometer Hardness Testing

     • Tensile Strength & Elongation Testing

     • Tear Strength Testing

     • Compression Set Testing

     • Biocompatibility Testing (ISO 10993 for medical)

     • Color Consistency Checks

     • Leak Testing

   • Full Traceability: Lot control from raw material to shipment. Certificates of Compliance (CoC) and Material Certificates (CoA) provided. ISO 9001:2015, TS16949 & ISO 13485:2016 certified systems.

Value Proposition: Cost, Quality, Partnership

• Optimized Cost Structure: Lower initial tooling investment vs. injection molding. Efficient material usage minimizes waste. Transparent costing models – upfront tooling cost + piece-part price based on material, complexity, volume, and secondary operations.

• Superior Quality & Consistency: Precision compression molding delivers exceptional dimensional stability, tight tolerances (±0.02~0.1mm typical), and outstanding material integrity critical for seals, gaskets, insulators, and complex profiles.

• Material Expertise: Extensive experience with high-performance silicones (high-temp, low-compression set, FDA, USP Class VI, UL94 V-0, specific colors/durometers).

• Scalability & Reliability: Seamless transition from low-volume prototypes to high-volume production. Robust supply chain ensures on-time delivery globally.

• Technical Partnership: Deep engineering support for design optimization (DFM/DFA), material selection, and validation protocol execution (EVT/DVT/PVT).