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BestSolv™ Theta – Replacement for 3M™ Novec™ 71DA
BestSolv™ Theta solvent and engineered fluid are non-flammable fluids used in a wide variety of industrial applications, including vapor degreasing and solvent cleaning of precision/industrial parts containing true machining oils.
BestSolv™ Theta solvent fluid is formulated as a drop in 3M™ Novec™ 71DA replacement fluid family based on the 3M™ announcement of Novec fluid phase out in 2022.
***Note – Information is provided by Best Technology not 3M. 3M does not endorse or recommend any alternative material. As such, the customer is responsible for evaluation of the material’s various properties when looking at alternatives. .
Benefits of BestSolv™ Theta
- Drop-in replacement for 3M™ Novec™ 71DA
- Hydrofluoroether (HFE) solvent
- Ideal for vapor degreasing and precision cleaning applications
- Stable near azeotropic solvent
- Compatible with a wide range of materials
- Non-flammable
- Non-conductive
- Low toxicity
- Low Global Warming Potential (GWP)
- Zero Ozone Depletion Potential (ODP)
- Low surface tension penetrates tight spaces for improved cleaning
Data Sheets
| Type | |
Safety Data Sheet | |
Technical Data Sheet |
Common Applications
BestSolv™ Theta is formulated as a vapor degreasing solvent for precision cleaning applications. It is commonly used for:
- Cleaning medical device parts during manufacturing
- Cleaning electronics and mobile device parts during manufacturing
Properties of Best Solv™ Theta vs 3M™ Novec™ 71DA
| Property | 3M™ Novec™ 71DA | Best Solv™ Theta |
| Composition | Hydrofluoroether (HFE) blend with 1,2 trans DCE and Isopropanol | Hydrofluoroether (HFE) blend with 1,2 trans DCE and Isopropanol |
| CAS # | #156-60-5 – trans-1,2-Dichloroethylene | #156-60-5 – trans-1,2-Dichloroethylene |
| Cleaning Performance | Heavy Duty | Heavy Duty |
| Boiling Point | 104 °F / 44 °C | 102 °F / 39 °C |
| Stability | Near Azeotrope | Near Azeotrope |
| Vapor Pressure | 381mmHg | 386mmHg |
| Liquid Density | 1.33 g/cm2 | 1.36 g/cm2 |
| Surface Tension | 16.4 dynes/cm | 17 dynes/cm |
| Kauri-Butanol Value | 33 Kb | 63 Kb |
| Global Warming Potential (GWP) | Low | Low |
| Ozone Depletion Potential (ODP) | None | None |
| Volatile Organic Compound (VOC) Designation | Yes – 1,2 trans DCE is a VOC. | Yes – 1,2 trans DCE is a VOC. |
| Flash Point | None | None |
| Exposure Guidelines (TLV/TWA) | 200 ppmv | 200 ppmv |
BestSolv™ Theta Packaging
| Product # | SKU | Container Sizes Available (Gallons) | Approx. Weight (Lbs.) |
| BestSolv™ Theta-55 | 23700410 | 55 gal. drum | 551 lbs. |
| BestSolv™ Theta-05 | 23700425 | 5 gal. pail | 50 lbs. |
Best Solv Price and Ordering
For purposes of product stewardship, Best Solv fluids cannot be sold directly online and is available for customers in the United States only.
Please contact our chemical sales department for a quote by clicking the “Get a Quote” button, or call 612-392-2414, ext. 2.