TUW-39A Fluorinated Solvent

TUW-39A
TUW-39A is a non‑flammable azeotropic fluorinated solvent designed for precision cleaning and vapor degreasing. It offers strong solvency, excellent material compatibility, and a favorable environmental profile with near‑zero ODP and very low GWP, making it a sustainable drop‑in replacement for legacy cleaning agents.
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TUW-39A is an azeotropic blend of cis‑1‑Chloro‑3,3,3‑trifluoropropene (≤30%) and trans‑1,2‑Dichloroethylene (≥68%) with ≤2% additives. As a true azeotrope, it maintains a constant boiling point (37 °C) and consistent composition through repeated distillation and reflux cycles, making it ideal for vapor degreasing equipment.

Key Features & Benefits

  • Non‑flammable (no flash point)

  • High cleaning performance with moderate‑to‑strong solvency

  • Compatible with most polymeric substrates, elastomers, and a wide range of metals (aluminum, copper, steel, stainless steel, titanium, zinc, etc.)

  • Recyclable and reusable

  • RoHS compliant and not classified as SVHC

  • Not a Hazardous Air Pollutant (HAP)

  • Near‑zero Ozone Depletion Potential (ODP ≈ 0)

  • Very low Global Warming Potential (GWP < 1)

Typical Applications

  • Precision cleaning and vapor degreasing

  • Silicone oil dilution and particle removal

  • Heat‑transfer fluid applications

  • Cleaning of hard disks, graphics cards, and electronic components

  • Replacement for HCFC‑141b, HCFC‑225, HFC/HFE solvents, and flammable diluents in medical device manufacturing

Soils Removed
Particles, ionic residues, solder flux and paste, adhesives, dust, drawing oils, fluorinated fluids, silicone oils, and lapping compounds.

Physical Properties

  • Appearance: Clear, colorless liquid with mild odor

  • Boiling Point: 37 °C (azeotrope)

  • Freezing Point: –101 °C

  • Specific Gravity: 1.29

  • Viscosity: 0.37 cP

  • Vapor Pressure: 50 kPa

  • Solubility of Water: 950 ppm

  • Flammability: None (ASTM E681)

Shelf Life
24 months when stored in its original sealed container at room temperature.

Packaging
Available in 25 kg pails and 250 kg drums. Custom packaging available upon request.

Safety & Disposal
Refer to the Safety Data Sheet (SDS) for detailed handling, personal protection, and first‑aid information. Dispose of product through approved waste disposal facilities in accordance with local regulations.