Phenyl Silicone Fluid
Phenyl Silicone Fluid BL-255
Phenyl methyl silicone fluid, Phenylmethyl polysiloxane and Dimenthyl polysiloxane, Dimethylsiloxane methylphenylsiloxane copolymer, CAS NO.:…
BL-255 View technical index
Phenyl Silicone Fluid
Phenyl Silicone Fluid BL-250
As a lubricant:
- Grade code
- BL-250
- Product line
- Phenyl Silicone Fluid
- Appearance
- Colorless transparent or light yellow transparent liquid
- Viscosity
- 125 / 500
- Certification
- ISO 9001 quality system
- Origin
- Hangzhou, Zhejiang, China
Overview
What BL-250 Is
Phenyl Silicone Fluid BL-250 is supplied as colorless transparent or light yellow transparent liquid and a viscosity of 125 / 500. It is released against the technical index below under our ISO 9001 system, and every shipment carries the certificate of analysis for its batch.
Synonyms: Phenyl methyl silicone fluid, Phenylmethyl polysiloxane and Dimenthyl polysiloxane, Dimethylsiloxane methylphenylsiloxane copolymer. Equivalent Products: Dow Corning 510, Dow Corning 550, Dow Corning 710, Shin-Estu KF53
Key benefits
Why Formulators Choose It
- BL-250 is straight chained Polyphenylmethylsiloxane in which some of the methyl are replaced by phenyl. Compared with dimethyl silicone fluid, it has better performance in high and low temperatures (-40 ~ 300°C ), and better properties of lubricity, mold unloading and electrical insulation. It is small in temperature viscosity coefficient and volatility. Compression rate and the surface tension is high. It is well in miscibility with other organic resin. The UV-resistant properties is unique.
- Heat resistance
- High flash points
- Low volatility
Technical index
Specifications for Phenyl Silicone Fluid BL-250
These are the release values this grade is tested against under our ISO 9001 system. The batch result is issued as a certificate of analysis with the shipment. Any value not listed here is not published — ask and we will measure it rather than guess.
| Equivalent brand | DC550 / DC710 |
|---|---|
| Appearance | Colorless transparent or light yellow transparent liquid |
| Viscosity(25°C, mm 2 /s) | 125 / 500 |
| Specific Gravity at 25°C | 1.07~1.10 / 1.09~1.12 |
| Refractive index (25°C) | 1.4900-1.5000 / 1.4900-1.5000 |
| Flashing point,°C | ≥308 / ≥302 |
| Pour point,°C | -50 / -22 |
| Volatility 250°C/4Hours, % | ≤2.0% / ≤2% |
Application scenarios
Where BL-250 Is Used
- As a lubricant:
- Base oil for high temperature ball bearing greases.
- Lubricating oil for high temperature instruments.
- As a heat transfer medium:
- Heat-treating baths for speciality metals.
- Heat exchange fluid for research apparatus and instrument calibration baths.
- Heat transfer oil in capacitors, transformers and various electronics.
- As a thermostat fluid:
- Suitable for temperatures from -40°C to 315°C in thermostat systems, which should be kept clean.
Who it is for
Industries That Specify This Grade
Matched from this product's own published application text — not from a generic industry list.
Electronics & Thermal Management
Heat transfer oil in capacitors, transformers and various electronics.
Industrial Processing & Defoaming
Base oil for high temperature ball bearing greases.
Packing
How It Is Supplied
25KG, 50KG plastic drum or 200KG Iron Drum
Shipments leave from Hangzhou, Zhejiang, China with commercial invoice, packing list, certificate of origin, TDS and SDS prepared before booking.
Comparison
Against Neighbouring Grades
| Grade | Appearance | Headline value |
|---|---|---|
| Phenyl Silicone Fluid BL-250 | Colorless transparent or light yellow transparent liquid | 125 / 500 |
| Phenyl Silicone Fluid BL-255 | Colorless transparent or light yellow transparent liquid | 75 / 100 / 150 / 1000 / 30000 |
| Phenyl Silicone Fluid BL-275A | — | — |
| Alkyl Aryl modified Silicone Fluid BL-225 | Light yellow or transparent oily liquid | 1200 - 1600 |
Related grades
Other Grades in Phenyl Silicone Fluid
Alkyl Silicone Fluid
Alkyl Aryl modified Silicone Fluid BL-225
BL-225 is a medium viscosity alkyl and aryl modified silicone fluid. It owns good lubricity, mold release, hydrophobicity, compatibility with…
BL-225 View technical index
Dimethyl Silicone Fluid
Dimethyl Silicone Fluid BL-201
BL-201 is a polydimethylsiloxane polymer manufactured to yield essentially linear polymers in a wide range of average kinematic viscosities from…
BL-201 View technical index
Related Reading
Answers
Phenyl Silicone Fluid BL-250 — Questions
What is Phenyl Silicone Fluid BL-250?
As a lubricant:
What does Phenyl Silicone Fluid BL-250 look like?
Colorless transparent or light yellow transparent liquid. Typical viscosity is 125 / 500. Full values are listed in the technical index above; a certificate of analysis is issued with every shipment.
Where is BL-250 used?
As a lubricant: Base oil for high temperature ball bearing greases.
How is BL-250 supplied?
25KG, 50KG plastic drum or 200KG Iron Drum
Can I get a sample of BL-250 before ordering?
Yes. Samples of Phenyl Silicone Fluid BL-250 are available for evaluation. Message us on WhatsApp or email [email protected] with your application, target viscosity or solid content and the trial quantity you need, and we will confirm availability and lead time.
What is the minimum order quantity?
MOQ depends on the pack size you choose — 25KG, 50KG plastic drum or 200KG Iron Drum. Tell us your annual volume and we will quote the most economical packing and shipping route from Hangzhou, China.
Quote BL-250
Send your application, the annual volume and the destination port. We return the technical data sheet, the safety data sheet, packing options and a price with lead time from Hangzhou.