Sponge Silicone Profiles (Cellular)
Extruded sponge silicone profiles with a closed-cell structure. Low density, high compressibility, and elastic recovery. Compliance with FDA, EC 1935/2004, EN 45545-2, UL94, USP VI, and ISO 10993. Manufacturing under ISO 9001 and ISO 13485.
Process Principle
The sponge silicone profiles are manufactured via expanded extrusion, generating a closed-cell structure that offers lightness, thermal insulation, and excellent resilience.
Materials and Formulations
Made from cellular VMQ silicone with densities from 0.25 to 0.6 g/cm³. Food-grade, medical-grade, fire-retardant, antistatic, or high-temperature formulations. Certified FDA, EC 1935/2004, UL94, EN 45545-2, USP VI, and ISO 10993.
Dimensions and Finishes
Sections from 5×5 mm up to 50×50 mm. Tolerances according to ISO 3302-1 E3. Smooth or micro-textured surface. Translucent, white, grey, or custom RAL colors.
Production Environments
Production under ISO 9001 and ISO 13485 in an industrial environment or ISO 8 cleanroom, with batch-by-batch density, compression, and elastic recovery control.
Product Gallery
Key Technical Data
Typical values obtained according to series datasheets and indicated standards. May vary based on density, hardness, and formulation. Final validation is the customer's responsibility.
| Property | Typical Values | Standard |
|---|---|---|
| Hardness (Shore 00) | 35 – 80 | ISO 7619-1 |
| Compression Set | ≤ 35 % | ISO 815-1 |
| Elongation at Break | 200 – 400 % | ISO 37 |
| Density | 0,16 – 0,53 g/cm³ | ISO 845 |
| Working Temperature | –60…+200 °C | — |
| Tolerances | Extrusion E2–E3 | ISO 3302-1 |
| Sectoral (On Request) | EN 45545-2 / FDA / CE 1935/2004 / BfR / RoHS / REACH | — |
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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Soft seals or tolerance dampers
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Thermal or vibrational insulation
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Structural protection and hygienic closures
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Technical packaging and lightweight gaskets
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Anti-vibration and acoustic systems
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Soft compression gaskets for precision equipment (optics)
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Thermal insulation for batteries in electric vehicles
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Sealing in access panels of portable medical equipment
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Damping profiles for sound booth doors
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Acoustic insulation in generator engine compartments
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Low-force closure gaskets for incubators
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Sealing for vibration test chambers
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Dust protection profiles for mining equipment
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Damping for glass components in tempering furnaces
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Movement compensation joints in metro structures
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Sealing in safe and security cabinet doors
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Duct insulation in low-temperature environments
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Support profiles in liquid filtration systems
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Gaskets for large-diameter quick couplings (low pressure)
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Sealing for domestic hot water tank covers
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Dampers for precision weighing platforms
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Gaskets for radar equipment enclosures
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Filler and insulation profiles for construction joints
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Sealing for low-pressure vacuum chamber doors
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Insulation for HVAC equipment on ships (Naval)
Manufacturing and Delivery Options
- Sections: 5×5 to 50×50 mm
- Materials: Cellular VMQ (closed-cell foam)
- Formulations: Food-grade, Medical-grade, Fire-retardant, Antistatic, High-temperature
- Colors: Translucent, white, grey, or custom RAL
- Production: Industrial or ISO 8 Cleanroom
- Delivery: In rolls, cut lengths, or cut parts
- Entrega: en rollos, tramos o piezas cortadas
Product Selection Matrix
| Customer Requirement | Recommended Solution |
|---|---|
| Dense or solid profiles | Square Profiles |
| Flat or rectangular profiles | Rectangular Profiles |
| Sponge silicone cords | Sponge/Foam Cord |
| Special designs per drawing | Custom Extruded Profiles |
| Diseños especiales bajo plano | Custom Extruded Profiles |
Technical Conclusion and Recommendations
The sponge silicone profiles from ProSilicones64 combine lightness, elasticity, and insulation with excellent thermal and chemical durability.
Compliant with FDA, EC 1935/2004, EN 45545-2, UL94, USP VI, and ISO 10993 regulations and manufactured under ISO 9001 and ISO 13485.
An ideal technical solution for flexible and hygienic seals in the industrial and sanitary sectors.
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