HS Code:
39100000
Technical Data
Typical values, not a specification. The technical data sheet (TDS) is binding.
Processing
- Viscosity of Mixture
- 50 mPa·s
Physical and thermal
- Density (23 °C)
- 0.97 g/cm³
- Temperature resistance (duration)
- -50 to 200 °C
- Peak temperature (briefly)
- 200 °C
- Flash point
- 250 °C
Storage
- Shelf life in original packaging
- 24 months
- Storage Temperature
- -20 to 50 °C
Product Information
- Brand
- Bluesil
- Manufacturer
- Elkem Silicones
- Container
- 1kg, 5kg, 25kg, 200kg, 1000kg
- Number of components
- 1K (one-component)
- Consistency
- Flowable
- Mixing Ratio
- One-component
Further Properties
- UV resistance
- Yes
Physical Properties
- Cured Color
- Transparent
- Self-leveling
- Yes
- Viscosity (cSt)
- 50 cSt
- Density (g/cm³)
- 0.960 g/cm³
Electrical Properties
- Electrical Insulation
- Yes
Product Approvals
- Food contact
- No
- Medical grade
- No
Thermal Properties
- Flash point (°C)
- 280 °C
- Pour point (°C)
- -55 °C
Product Description
Bluesil Fluid 604V50 is a high-purity dielectric PDMS (50 mm²/s) specifically for transformer insulation and medium-voltage systems — non-flammable, chemically inert, environmentally friendly.
Bluesil/Silbione polydimethylsiloxane oils (PDMS) — chemically inert, thermally stable, with defined viscosity for use as lubricants, separators, dielectrics, hydraulic fluids, and heat transfer fluids. Fluid 604V50 is tailored to specific applications — the most important properties and areas of use are listed below.
Bluesil FLD 604V50 is a high-purity polydimethylsiloxane whose purity has been specifically tested for electrical engineering applications. Its main application is insulation and cooling in submerged transformers—non-flammable, harmless to humans and the environment, and ideal for transformers in public spaces, residential areas, basements, and near water.
What distinguishes Fluid 604V50
What is Fluid 604V50 used for?
Processing
Fluid 604V50 in comparison
Direct comparison with related fluid products from our range. "— " = not specified in the data sheet.
Fluid 604V50 Current Product |
Fluid 47 V 50 → | Fluid 47 V 100 → | Fluid 550 → | |
|---|---|---|---|---|
| Product Type | Dielectric PDMS | PDMS, linear | PDMS, linear (HT) | special silicone oil |
| Viscosity @25 °C | 50 mm²/s | 50 mm²/s | 100 mm²/s | — |
| Density @25 °C | 0.960 | 0.959 | 0.965 | — |
| Flash point | see TDS | ≥280 °C | +273 °C | — |
| Pour point | — | −55 °C | −55 °C | — |
| Refractive index | — | 1.402 | 1.403 | — |
| Main application | Transformer dielectric | RTV Thinner / Hydraulics | Spinneret release agent | Special Industry |
Frequently asked questions about Fluid 604V50
Practical application and design questions — answered by SILITECH.
Bluesil Fluid 604V50: High-purity dielectric PDMS (50 mm²/s) specifically for transformer insulation and medium-voltage installations — non-flammable, chemically inert, and environmentally friendly. Main applications: transformer insulation, medium-voltage installations, public utilities.
PDMS (Polydimethylsiloxane) is a linear silicone fluid with high thermal stability, low surface tension, very good dielectric properties, and broad temperature resistance. The viscosity (in mm²/s = cSt) determines the field of application — low viscosities for volatile lubrication and hydraulics, high viscosities for antifoam, damping, and care conditioning.
Store in the unopened original container in a dry, cool place — typically standard between +5 and +30 °C, exact values see TDS. Consult the Safety Data Sheet (SDS) before use. Observe the expiration date on the packaging — Elkem guarantees the sales specifications only up to the stated date.
In the comparison table above, you will find related products with similar functions or related specifications. If you are unsure about the optimal choice, we will be happy to advise you — contact SILITECH with your application (desired property, substrate, processing workflow).


Silicones, silicone oils, sprays
Casting and potting resins