BestSolv™ Omega – PFAS-Free 3M™ Novec™ Replacement
BestSolv™ Omega is the next generation non-PFAS formulated fluid that is non-flammable and serves as an effective cleaning solvent in a diverse range of industrial applications, such as vapor degreasing and precision cleaning of industrial parts that contain true machining oils.
Based on the 3M™ announcement of Novec™ fluid phase out in 2022, BestSolv™ Omega cleaning solvent was specifically developed as a next generation, PFAS-free drop-in replacement fluid for many 3M™ Novec™ engineered fluids including 3M™ Novec™ 72DA, 3M™ Novec™ 73DE, 3M™ Novec™ 71DA, 3M™ Novec™ 71DE, and 3M™ Novec™ 72DE.
For those who need a direct molecule replacement for 3M™ Novec™ 72DA, Best Technology also offers BestSolv™ 72DA as an alternative.
Benefits of BestSolv™ Omega
- Next generation beyond HFE and HFCs
- PFAS free based on Hydrochlorofluoroolefin HCFO / Hydrofluoroolefin (HFO) proprietary solvents
- 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 |
What is PFAS free?
Most Stringent Definition
Based on the most stringent, far reaching PFAS definition passed in the state of Minnesota and Maine legislation, a PFAS is “any molecule which contains at least 1 fully fluorinated carbon atom.”
Based on its unique molecular structure, BestSolv™ Omega is PFAS free and does NOT contain a fully fluorinated carbon atom.
Proposed EPA PFAS Definition
In May 2023, the EPA proposed the following definition of the term “PFAS”:
“a chemical substance that contains at least one of these three structures:
- R–(CF2)–CF(R′)R″, where both the CF2 and CF moieties are saturated carbons
- R–CF2OCF2–R′, where R and R′ can either be F, O, or saturated carbons
- CF3C(CF3)R′R″, where R′ and R″ can either be F or saturated carbons.”
Based on the EPA proposed definition, BestSolv™ Omega is PFAS free since its chemical structure does not contain any of the three chemical structures listed in the proposed definitions.
- Definition 1 above does not apply because while there is a CF2 moiety found on both isomers, the CF moiety is not saturated, as it is double bonded.
- Definition 2 does not apply because there there is no oxygen atom on either isomer.
- Definition 3 does not apply because there is no fully fluorinated methyl group.
Common Applications
BestSolv™ Omega 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 3M™ Novec™ 72DA vs BestSolv™ 72DA and BestSolv™ Alpha and BestSolv™ Omega
| Property | 3M™ Novec™ 72DA | BestSolv™ 72DA* | BestSolv™ Alpha* | BestSolv™ Omega* |
| Cost Comparison | $$$$ | $$ | $ | $$$$ |
| Composition |
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| Replacement Type | Exact Molecule | Similar Molecule, Drop-In Replacement | PFAS-Free Drop-In Replacement | |
| Cleaning Performance | Heavy Duty | Heavy Duty | Heavy Duty | Heavy Duty |
| Boiling Point | 111 °F / 44 °C | 111 °F / 44 °C | 107 °F / 42 °C | 114 °F / 46 °C |
| Stability | Near Azeotrope | Near Azeotrope | Near Azeotrope | Near Azeotrope |
| Vapor Pressure | 360 mmHg | 360 mmHg | 343 mmHg | 341 mmHg |
| Liquid Density | 1.27 g/cm2 | 1.27 g/cm2 | 1.32 g/cm2 | 1.27 g/cm2 |
| Surface Tension | 18 dynes/cm | 18 dynes/cm | 18 dynes/cm | 22 dynes/cm |
| Kauri-Butanol Value | 58 Kb | 58 Kb | 80 Kb | 118 Kb |
| Global Warming Potential (GWP) | Low | Low | Low | Low |
| Ozone Depletion Potential (ODP) | None | None | None | None |
| Volatile Organic Compound (VOC) Designation | Yes – 1,2 trans DCE is a VOC. | Yes – 1,2 trans DCE is a VOC. | Yes – 1,2 trans DCE is a VOC. | Yes – 1,2 trans DCE is a VOC. |
| Flash Point | None | None | None | None |
*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.
BestSolv™ Omega Packaging
| Product # | SKU | Container Sizes Available (Gallons) |
| BestSolv™ Omega-55 | 24151357155 | 55 gal. drum |
| BestSolv™ Omega-05 | 24151357105 | 5 gal. pail |
BestSolv™ HFO Price and Ordering
For purposes of product stewardship, Best Solv™ HFO Engineered Fluids cannot be sold directly online and are 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.