Extruded Solid Silicone Cords
High-precision extruded solid VMQ silicone cords. Hardness 10-90 Shore A. Compliance with FDA 21 CFR 177.2600, EC 1935/2004, UL94, EN 45545-2, USP VI, and ISO 10993. Continuous manufacturing in reels or custom-cut lengths under ISO 9001 and ISO 13485.
Process Principle
Solid silicone cords are manufactured by continuous extrusion with diameter control and tunnel thermal curing. This process ensures high regularity, dimensional precision, and thermal stability across the entire profile length.
Materials and Formulations
Made from solid VMQ silicone with hardnesses from 10 to 90 Shore A. Certified food-grade, medical-grade, fire-retardant, antistatic, high-temperature, or fluorinated (FVMQ) formulations. Compliant with FDA, EC 1935/2004, UL94, EN 45545-2, USP VI, and ISO 10993.
Dimensions and Finishes
Diameters from 1 to 50 mm with tolerances according to ISO 3302-1 E2. Smooth or satin finish. Standard colors (translucent, white, black, red, grey) or custom RAL colors. Available in custom-cut lengths or continuous coiling.
Production Environments
Production in an industrial environment for large volumes or an ISO 8 cleanroom for the medical and food sectors. Processes certified ISO 9001 and ISO 13485 with dimensional control, batch traceability, and hardness/tensile testing.
Product Gallery
Key Technical Data
Typical values obtained according to series datasheets and indicated standards. May vary based on hardness, formulation, and raw material. Final validation is the customer's responsibility.
| Property | Typical Values | Standard |
|---|---|---|
| Hardness (Shore A) | 20 – 90 | ISO 7619-1 |
| Tensile Strength | 6 – 12 MPa | ISO 37 |
| Elongation at Break | 200 – 600 % | ISO 37 |
| Tear Resistance | 15 – 30 kN/m | ISO 34-1 |
| Density | 1,11 – 1,20 g/cm³ | ISO 2781 |
| Working Temperature | –60…+250 °C | — |
| Tolerances | Extrusión E1–E3 · Longitudes L2–L3 | ISO 3302-1/-2 |
Certifications and Regulatory Compliance in Silicone Extrusion
Every extrusion process is backed by international certifications that guarantee traceability, safety, and regulatory conformity in highly demanding sectors.
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
Main Application Sectors
Key Applications
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Linear or circular sealing gaskets
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Thermal or electrical sealing
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Anti-vibration protection and cushioning
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Cords moulded into rings or technical splices
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Closure systems and pressurised chambers
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Lid sealing for cryogenic storage tanks
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Seat gaskets in hygienic butterfly valves
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Cord for aircraft window sealing
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Component in CIP/SIP cleaning heads
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Sealing gasket for immersion temperature sensors
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Sealing for fermenter and bioreactor lids
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Cord in high-performance particle filtration systems
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Seals in chemical handling equipment (FVMQ)
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Gaskets for level sight glasses in boilers and tanks
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Gasket cords in pyrolysis and calcination furnaces
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Sealing for vacuum chambers and curing ovens
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Guide strips in blister packaging machinery
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Sealing component in exposed electrical connectors (antistatic/conductive)
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Impact cushioning in industrial machinery bumpers
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Cords for glazing fixing systems in architecture
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Sealing in industrial engine air intakes
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Internal gaskets in distillation equipment
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Edge protection in ventilation grilles
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Vibration dampers in laboratory equipment (analytical)
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Seals for humidity and corrosion test chambers
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Cords with metal detectable formulation (blue) for food inspection systems
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Manufacturing of bespoke sealing plugs from extruded cord
Manufacturing and Delivery Options
- Diameters: 1 to 50 mm
- Materials: Solid VMQ silicone
- Formulations: Food-grade, Medical-grade, Fire-retardant, Antistatic, High-temperature, FVMQ
- Colors: Translucent, white, black, grey, red, or RAL
- Production: Industrial or ISO 8 Cleanroom
- Delivery: In rolls, cut lengths, or vulcanized rings
- Entrega: en rollos, longitudes cortadas o vulcanizadas en aro
Product Selection Matrix
| Customer Requirement | Recommended Solution |
|---|---|
| Flexible, solid cords | Solid Cord |
| Sponge or lightweight profiles | Sponge/Foam Cord |
| Inflatable or dynamic seals | TIXAN'AIR® Inflatable Seals |
| Closed or spliced cords | Juntas vulcanizadas en aro |
| Cordones cerrados o empalmados | Juntas vulcanizadas en aro |
Technical Conclusion and Recommendations
The solid silicone cords from ProSilicones64 offer precision, flexibility, and reliability for industrial and sanitary sealing.
Manufactured under ISO 9001 and ISO 13485 with certified formulations (FDA, EC 1935/2004, UL94, EN 45545-2, USP VI, ISO 10993), they guarantee thermal, chemical, and mechanical stability.
A versatile solution for continuous sealing applications in critical European sectors.
Una solución versátil para aplicaciones de estanqueidad continua.
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