High-Precision Mold and Tooling Manufacturing for Technical Silicone
At ProSilicones64, performance starts in the mold. Progress Silicones (France) designs and manufactures high-precision injection, compression, and extrusion molds and tooling in-house, while Establecimientos OR64 (Spain) handles maintenance, adaptation, and local replication. Every tool is produced under ISO 20457, ISO 3302-1, and EN 9100 standards, ensuring extreme tolerances, repeatability, and reliability in long production runs.
Definition
The molds and tooling at ProSilicones64 represent the physical basis of all industrial precision. The engineering department at Progress Silicones (France) designs molds for LSR injection, compression, and overmolding, as well as extrusion dies/tooling with geometries adapted to each production run. Establecimientos OR64 (Spain) completes the cycle with preventive maintenance, replication, and calibration to ensure production continuity.
Technical Features of Silicone Molds and Tooling
- High-precision CNC manufacturing with tolerances of ±0.01 mm.
- Design according to ISO 20457 (injection molds) and ISO 3302-1 (product tolerances).
- Materials: hardened steel, aeronautical aluminum, PVD or DLC treated stainless steel.
- Types: LSR/HCR injection molds, compression, overmolding, extrusion dies, and calibrators.
- Optical grade polished cavities, hot runners, and integrated vacuum systems.
- Fill simulation and rheology (Moldflow / SIGMASOFT).
- Preventive maintenance every 2000 h and internal anti-adherent treatment.
- Dimensional control with 3D metrology, optical profilometer, and calibration certificates.
Properties and Manufacturing Capabilities of Molds and Tooling
| Property | Typical Values | Standard |
|---|---|---|
| Machining Tolerance | ±0.01 mm | ISO 2768 / ISO 20457 |
| Materials | Hardened steel, aeronautical aluminum, treated stainless steel | Internal Progress / OR64 |
| Mold Type | LSR/HCR injection, compression, overmolding | ISO 20457 |
| Extrusion Dies | CNC nozzles and calibrators ±0.01 mm | ISO 3302-1 |
| Cavity Surface | Ra < 0.2 μm (optical grade) | ISO 8785 |
| Maintenance | Every 2000 h or per production batch | Internal OR64 Procedure |
| Dimensional Control | 3D metrology / optical profilometer | ISO 10360 |
Certifications and Standards Applicable to Molds and Tooling
Every mold or die is designed, manufactured, and validated under international engineering and dimensional control standards that guarantee precision and repeatability in technical silicone production.
Main Certifications
- ISO 9001:2015 – Quality Management
- ISO 13485:2016 – Medical Devices
- EN 9100 – Aerospace
- GMP – Good Manufacturing Practices
- Validated ISO 8 Cleanroom (550 m², ISO 14644-1 to -7)
Regulatory Compliance
- FDA 21 CFR 177.2600 – Food Contact
- EC 1935/2004 – Materials in Contact with Food
- EN 45545-2 – Railway Fire Protection
- UL94 – Material Flammability
- ISO 10993 and USP Class VI – Medical and Pharmaceutical Biocompatibility
- REACH (1907/2006) and RoHS (2015/863) – Chemical and Electrical Substances
Industrial Sectors Requiring Precision Tooling
Technical Applications of Silicone Molds and Tooling
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High-precision multi-component and overmolded LSR molds.
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Extrusion dies for complex profiles, cords, and technical tubing.
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Compression tooling for flat gaskets and solid parts.
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Extrusion calibrator nozzles with thermal control.
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Tooling for cutting, assembly, and vulcanization/splicing of seals.
Tooling, Molds, and Dies Developed for Silicone Extrusion and Molding
Compression Molding
Compression molded parts with high dimensional accuracy.
HCR Injection Molding
High-quality HCR silicone injection molded parts.
LSR Injection Molding
Liquid Silicone Rubber (LSR) injection for high-precision production.
Flat Gaskets
Custom-cut flat silicone gaskets for tight sealing.
How to Select the Right Tooling or Mold Based on the Manufacturing Process
| Customer Requirement | Recommended Mold or Die Type |
|---|---|
| Production of sterile medical parts | ISO 13485 Multi-component LSR Mold |
| Rapid prototypes | CNC Aluminum Mold + HCR Compression |
| Long production runs | Hardened Steel Mold with Hot Runner |
| Extrusion of technical profiles | CNC Die ±0.01 mm with Thermal Calibrator |
| Overmolding with inserts | LSR Hybrid Mold + Vacuum System |
| Conductive or thermal silicones | DLC Anti-adherent Treated Mold or Die |
Why Choose ProSilicones64 for Technical Mold and Tooling Manufacturing
Key Benefits
- In-house design and manufacturing of ISO / EN certified molds and tooling.
- Extreme machining tolerances: ±0.01 mm with 3D metrological control.
- Total coverage: LSR injection, compression, extrusion, and overmolding.
- Maintenance, replication, and calibration in Spain by OR64.
- Full support from Progress Silicones (France) and Establecimientos OR64 (Spain).
The molds and tooling department at ProSilicones64 ensures that every project starts with a flawless foundation. From 3D CAD engineering to final calibration, all tooling is manufactured with sub-millimeter precision to ensure repeatability, reliability, and sustained quality.
The molds and tooling area at ProSilicones64 consolidates the technical alliance between Progress Silicones (France) and Establecimientos OR64 (Spain). We manufacture molds and tooling with CNC precision of ±0.01 mm, guaranteeing reliability, reproducibility, and total traceability in every production batch. Every tool is a piece of engineering designed to last and optimize the performance of our industrial processes.
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