1. Product Identification
Fluorosilicone Oil TPD‑FS8012 | Trifluoropropylmethylsiloxane Fluid
Composition: low molecular weight polymer of methyl-(3,3,3-trifluoropropyl)siloxane (100% fluorosilicone polymer)
Synonyms: Trifluoropropylmethylsiloxane, Methyl Trifluoropropyl Silicone Fluid, Trifluoropropyl methyl siloxane polymer
CAS No: 63148-56-1
Equivalent Product: Dow Corning FS 1265 or Dowsil FS 1265



Chemical Structure:
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2. Product Description
Fluorosilicone Oil TPD‑FS8012 is a high‑purity methyl‑terminated trifluoropropylmethylsiloxane polymer. The trifluoropropyl groups bonded to silicon atoms deliver outstanding oil resistance, solvent resistance, chemical inertness, good lubricity, low surface tension, and low refractive index, while retaining the wide service temperature range typical of premium silicone fluids. As a professional‑grade fluorosilicone fluid, it is formulated to match the performance of Dow Corning FS 1265 and Dowsil FS 1265, making it ideal for critical applications requiring stability under harsh conditions.
3. Key Features
- EU REACH Registered
- Excellent oil & solvent and chemical resistance
- High oxidation stability and long service life
- Low surface tension and low refractive index
- Good compatibility with most elastomers
- Wide range of working temperature(-40~204℃)
- Low volatility, stable performance in vacuum and reactive environments
4. Technical Index
| Item | Unit | TPD-FS8012-300 | TPD-FS8012-500 | TPD-FS8012-1000 | TPD-FS8012-10000 |
|---|---|---|---|---|---|
| Appearance | Colorless transparent or light yellow transparent liquid | ||||
| Viscosity at 25℃ | mm2/s | 300 | 500 | 1,000 | 10,000 |
| Viscosity at -18℃ | mm2/s | 5,200 | 12,000 | 20,000 | 420,000 |
| Viscosity at 100℃ | mm2/s | 27 | 36 | 69 | 670 |
| Viscosity at 204℃ | mm2/s | 5.3 | 6.4 | 10.3 | 75 |
| Flashing Point | ℃ | ≥260 | ≥270 | ≥300 | ≥310 |
| Freezing Point | ℃ | ≤-47 | ≤-40 | ≤-31 | ≤-31 |
| Working Temperature | ℃ | -40~204 | |||
| Volatility (200℃/4hr) | % | <5 | |||
* Note: Fluorosilicone oil TPD-FS8012 is also available in 100mm2/s.
- IR Chart

5. Typical Applications
- Base fluid for high‑performance greases and pastes requiring corrosion and solvent resistance
- Defoaming agent for solvents in chemical and petroleum processing
- Fluorosilicone fluid for vacuum pump lubrication handling reactive gases
- Specialty fluid for sealing, lubrication, and heat transfer in chemical, automotive, and aerospace industries
6. Packing
5KG, 25KG, 50KG or 200KG Plastic or Iron drums.
7. Transportation & Storage
1. Transported as non-dangerous chemicals.
2. Require sealed and airproof packing.
3. Should be stored in a shady cool, ventilated warehouse.
4. Keep away from fire, heat source, direct sunlight and rain.
5. Avoid from oxidant, acid, alkali chemical materials and other impurities.
8. Shelf Life
Shelf Life: 2 years.

Documents Available
TDS | SDS | RoHS Report | Purity Test Report
Documents Download
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