Brand: DOWSIL™ OS-10 Fluid; OS-20 Fluid; OS-30 Fluid developed by Dow (marketed under the Dowsil brand).
1. DOWSIL™ OS-10 Fluid
Package Size: Available in 500 mL bottles, 2.8 kg pails, 15 kg pails, and 150 kg drums.
2. DOWSIL™ OS-20 Fluid
Package Size: Available in 500 mL bottles, 3.1 kg pails, and 15 kg pails.
3. DOWSIL™ OS-30 Fluid
Package Size: Available in 500 mL bottles, 3.2 kg pails, 15 kg pails, and 150 kg drums.
Shelf Life: 36 months (3 years) from the date of manufacture.
DOWSIL™ OS-10, OS-20, and OS-30 Fluids are ozone-safe volatile methylsiloxane (VMS) compounds developed specifically for use as precision cleaning agents and carriers. These clear, colorless, and odorless fluids are compatible with most plastics and surface coatings, exhibit low toxicity, and evaporate completely at room temperature without leaving residues. Their low surface tension allows them to effectively clean surfaces, including intricate components, and they are non-irritating to the skin.
Applications:
Typical Properties:
| Property | Unit | OS-10 Fluid | OS-20 Fluid | OS-30 Fluid |
|---|---|---|---|---|
| Flash Point, Closed Cup | °C (°F) | -3 (27) | 34 (94) | 57 (135) |
| Boiling Point at 760 mm Hg | °C (°F) | 100 (212) | 152 (306) | 194 (381) |
| Vapor Pressure at 25°C (77°F) | mm Hg | 42.2 | 3.9 | 0.43 |
| Latent Heat at Boiling Point | cal/g (BTU/lb) | 46 (83) | 36 (66) | 31 (56) |
| Latent Heat at 25°C (77°F) | cal/g (BTU/lb) | 54 (97) | 47 (85) | 42 (76) |
| Drying Rate (Butyl Acetate = 1) | 3.8 | 0.7 | 0.14 | |
| Viscosity at 25°C (77°F) | cP | 0.5 | 0.8 | 1.3 |
| Specific Gravity at 25°C (77°F) | 0.76 | 0.82 | 0.85 | |
| Surface Tension at 25°C (77°F) | dynes/cm | 15.2 | 16.5 | 17.3 |
| Freezing Point | °C (°F) | -68 (-90) | -82 (-115) | -68 (-90) |
| Kauri-Butanol Value | 17 | 15 | 13 |
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