Replacement for 3M™ Novec™ Solvents
| Part # | Name | Size | Ordering |
|---|---|---|---|
| 24265201155 | BestSolv® Zeta-55 | 55 gal. drum | |
| 24265201105 | BestSolv® Zeta-05 | 5 gal. pail |
Product Description
BestSolv® Zeta PFAS-Free Engineered Fluid is the next-generation, non-PFAS cleaning solvent specifically developed as a drop-in replacement for light- and medium-duty 3M™ Novec™ solvents. It excels in vapor degreasing and precision cleaning of industrial parts that contain true machining oils, as well as serving as a carrier for oils and greases.
This product is a PFAS-free, drop-in replacement for 3M™ Novec™ solvents such as 3M™ Novec™ 7100 and 3M™ Novec™ 71DE.
Recommended Applications

- Cleaning solvent – medium duty
- Vapor degreasing
- Substitution of bromine-based solvents
- Degreasing of metal and precision parts
- Degreasing of aerospace parts
- Degreasing of semiconductors and electric parts
- Defluxing of printed circuit boards
- Cleaning during pre-plating
- Dilution of silicone oils and fluorinated greases
- Carrier for fluorinated oils and greases
- Substitution of trans-1,2-dichloroethylene blended solvents
Features and Benefits
- Next generation, PFAS free based on Hydrochlorofluoroolefin HCFO / Hydrofluoroolefin (HFO) proprietary solvents
- Ideal for medium-duty vapor degreasing and precision cleaning applications
- Excellent solvency (high Kb value of 44) without trans-1,2-dichloroethylene
- Ideal boiling point for cleaning applications (129 °F / 54 °C)
- Compatible with a wide range of materials
- Non-flammable
- No flash point
- Low toxicity – high AEL (Allowable Exposure Limit) of 250 ppm
- Very low Global Warming Potential (GWP)
- Zero Ozone Depletion Potential (ODP)
- Replacement for CFCs, HCFCs, HFCs, PFCs, Novec™ HFEs
What is PFAS Free?
A PFAS molecule is defined, based on statements from the U.S. EPA and the most stringent, far-reaching PFAS definition passed in the state of Minnesota and Maine legislation, as any molecule which contains at least 1 fully fluorinated carbon atom.
Based on its unique molecular structure, BestSolv® Zeta is PFAS free and does NOT contain a fully fluorinated carbon atom. The engineered fluid is based on Hydrochlorofluoroolefin HCFO / Hydrofluoroolefin (HFO) proprietary solvents which are understood as the next generation solvents beyond HFE and HFCs.
Composition & Properties
| Composition | HCFO/HFO PFAS-Free |
| 3M™ Novec™ Replacement Type | PFAS-Free Drop-In Replacement |
| Cleaning Performance | Medium Duty |
| Boiling Point | 129 °F / 54 °C |
| Freeze / Melting Point | -116 °F / -82 °C |
| Vapor Pressure | 240 mmHg |
| Liquid Density | 1.39 g/cm2 |
| Viscosity | 0.57 cP |
| Heat of Vaporization (at bp) | 213 kJ/kg |
| Specific Heat | 1.34 KJ/kg-K@ 25°C |
| Dielectric Constant | 12.3 |
| Global Warming Potential (GWP) | <1 |
| Ozone Depletion Potential (ODP) | None |
| Volatile Organic Compound (VOC) Designation | Not Exempt |
| Flash Point | None |
Materials Compatibility
| Metals | Stainless steel Aluminum Copper Brass Most common metals and alloys |
| Polymers/Plastics* | Polypropylene PTFE |
| Elastomers* | EPDM |
*Not compatible with polystyrene, polymethyl methacrylate and ABS. Not compatible with fluoroelastomers and silicone rubber. Material compatibility testing should always be performed with specific contaminants under process-specific conditions.
BestSolv® is distributed exclusively by Best Technology Inc.


