SILISIL Silicone Oil 5000 cSt.
SILISIL Silicone Oil 5000 cSt — high-viscosity PDMS silicone oil.
SILISIL Silicone Oil 5000 cSt — high-viscosity polydimethylsiloxane (PDMS).
Damping, antifoam base, thixotropy. Density 0.975 g/cm³, flash point >300 °C. Shipped from our Swiss warehouse with SDS and TDS.
SILISIL Silicone Oil 5000 cSt — High-viscosity PDMS silicone oil
SILISIL Silicone Oil 5000 cSt is a high-viscosity, linear polydimethylsiloxane (PDMS) that, due to its high molecular weight, exhibits pronounced damping and thixotropic properties. It serves as the basis for damping media, silicone rubber formulations, and highly concentrated antifoam systems.
Key features
| Viscosity at 25 °C | 5000 cSt (5000 mPa·s) |
| Density at 25 °C | 0.975 g/cm³ |
| Flash point (open cup) | >300 °C |
| pour point | -48 °C |
| surface tension | 21.3 mN/m |
| Polymer type | Polydimethylsiloxane (PDMS), linear |
All other properties (refractive index, thermal conductivity, dielectric properties, etc.) are listed as structured product attributes on this page and can be filtered in the shop. Please refer to the technical data sheet (TDS) in the documents section for the official values.
product benefits
- Significant mechanical damping effect
- High-temperature resistant with minimal oxidation
- Base for thixotropic formulations
- High resistance to leaching from compounds
- Excellent dielectric properties even at large film thicknesses
- Low volatility with a long product lifespan
- Compatible with most silicone resins and oils
Typical Applications by Industry
- Precision Damping: Torque and Torsion Dampers in Cameras, Medical Devices, and Household Appliances
- Antifoam Compounds: Highly Concentrated Defoamers for Paint Manufacturing, Mineral Oil Processing, and the Paper Industry
- Silicone rubber: Viscosity modifier in HTV and RTV compounds for adjusting rheological properties
- Cable and High-Voltage Insulation: Impregnation of High-Voltage Cables and Electrical Assemblies
- Mold-making additive: Thixotropic agent in silicone mold systems to improve stability
- Release Coatings: Surface Additives in Release Papers and Release Coatings
Processing and Compatibility
- Compatible with most organic solvents (aromatic and aliphatic hydrocarbons, ethers, esters)
- Emulsifiable using standard emulsifiers and techniques (rotor-stator, high-pressure homogenization)
- Typical dosage as a surface additive: 0.1–1%
- In formulated or cosmetic products: 1–10%, depending on the formulation
- Inmiscible with water and highly polar solvents (methanol, glycerin)
Storage, Handling, and Shelf Life
- Store in original containers, in a dry place, protected from direct sunlight, at temperatures below 60 °C
- Unopened products typically remain stable for years—the exact shelf life is specified in the TDS
- Close tightly after opening to prevent moisture from entering
- Avoid eye contact — mandatory information in the safety data sheet (SDS)
Available sizes
- 1 kg bottle (sample bottle)
- 5-kg canister
- 25-kg canister
- 200-kg drum
- 1,000 kg IBC (upon request)
SILISIL Silicone Oil 5000 cSt is packaged and tested by SILITECH AG in Switzerland and shipped from our Swiss warehouse. Every batch is traceable; we provide batch certificates upon request. Our silicone specialists are always available to assist you in selecting the appropriate viscosity or with formulation development.
Technische Daten zu SILISIL Silicone Oil 5000 cSt.
| product information | |
|---|---|
| brand | SILISIL |
| container | 1 kg, 5 kg, 25 kg, 200 kg, 1000 kg |
| network type | Not reactive |
| Areas of application | |
|---|---|
| Main application | Elektronik-Verguss, Schutzbeschichtung (Conformal) |
| Physical properties | |
|---|---|
| Paint cured | Transparent |
| Electrical Properties | |
|---|---|
| Electrical insulation | Yes |
| product approvals | |
|---|---|
| Certificates | RoHS, REACH |
| food contact | No |
| Suitable for medical use | No |
| General | |
|---|---|
| Viscosity (cSt) | 5,000 cSt |
| Density (g/cm³) | 0.975 g/cm³ |
| Flash point (°C) | >300 °C |
| Freezing point (°C) | -48 °C |
Verbindliche Werte entnehmen Sie bitte dem technischen Datenblatt (TDS) im Tab "Dokumente".
Dokumente und Datenblätter
Klicken Sie auf ein Dokument für die Vorschau oder das Download-Symbol für den direkten Download.
Technische Datenblätter (TDS) 3
Frequently Asked Questions About SILISIL Silicone Oil 5000 cSt
The most important answers regarding applications, features, and availability.
SILISIL Silicone Oil 5000 cSt is a high-viscosity polydimethylsiloxane and is particularly suitable for the mechanical damping of torsional and vibrational movements, as a base for highly concentrated antifoam systems, as a viscosity modifier in silicone rubber compounds, and for high-voltage insulation.
The distinctive feature of SILISIL Silicone Oil 5000 cSt is its pronounced damping effect combined with consistent performance across a wide temperature range. High-viscosity PDMS oils are used whenever mineral oils would fail due to thermal decomposition or oxidation. The exact specifications—in particular viscosity (5000 cSt), density (0.975 g/cm³), flash point (>300 °C), and pour point (-48 °C)—are also listed as product attributes and can be filtered in the shop.
Yes. SILISIL Silicone Oil 5000 cSt is an excellent electrical insulator with a dielectric strength of approximately 14 kV/mm, a dielectric constant of about 2.7, and a volume resistivity in the order of 10¹⁵ Ω·cm. This makes the product particularly suitable for dielectric and electronic impregnation applications.
SILISIL Silicone Oil 5000 cSt is available from our Swiss warehouse in standard sizes of 1 kg, 5 kg, 25 kg, 200 kg, and 1000 kg. Other sizes and packaging options are available upon request to meet customer specifications—we provide a free sample for preliminary testing.
Ihre Frage nicht dabei?
Unser Technik-Team berät Sie persönlich bei Materialauswahl, Verarbeitungsfragen und individuellen Anforderungen — schnell und kompetent.
product specifications
| product information | |
|---|---|
| container | 1 kg or 5 kg or 25 kg or 200 kg or 1000 kg |
| brand | SILISIL |
| network type | Not reactive |
| Areas of application | |
|---|---|
| Main application | Electronic potting or protective coating (conformal) |
| Physical properties | |
|---|---|
| Paint cured | Transparent |
| Electrical Properties | |
|---|---|
| Electrical insulation | Yes |
| product approvals | |
|---|---|
| Certificates | RoHS or REACH |
| food contact | No |
| Suitable for medical use | No |
| Uncategorized | |
|---|---|
| Viscosity (cSt) | 5,000 cSt |
| Density (g/cm³) | 0.975 g/cm³ |
| Flash point (°C) | >300 °C |
| Freezing point (°C) | -48 °C |
| keywords | |
|---|---|
| keywords | |
Dokumente und Datenblätter
Sicherheitsdatenblätter (SDS) und technische Datenblätter (TDS) zum Download: