Replacement for 3M™ Novec™ 71DE
| Part # | Name | Size | Ordering |
|---|---|---|---|
| 23700510 | BestSolv® Delta-55 | 55 gal. drum | |
| 23700525 | BestSolv® Delta-05 | 5 gal. pail |
Product Description
BestSolv® Delta Engineered Fluid is a hydrofluoroether (HFE) fluid that excels as a medium-duty precision cleaning solvent for removal of true machining oils, and serves as a reliable solvent for latent fingerprint processing in forensic investigations.
This product is a similar molecule, drop-in replacement for 3M™ Novec™ 71DE, available at a significantly lower price point than 3M™ Novec™ 71DE.
Recommended Applications

- Cleaning solvent – medium duty
- Vapor degreasing
- Precision cleaning
- Cleaning medical device parts during manufacturing
- Cleaning electronics and mobile device parts during manufacturing
- Latent fingerprint processing on porous surfaces, as a carrier solvent for DFO formulations.
Features and Benefits
- Drop-in replacement for 3M™ Novec™ 71DE
- 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)
- Replacement for CFCs, HCFCs, HFCs, PFCs, Novec™ HFEs
- Low surface tension penetrates tight spaces for improved cleaning
Case Study: BestSolv® Delta for Latent Fingerprint Applications
Download our Latent Fingerprint case study to learn more about the benefits of BestSolv® Delta as a replacement for 3M™ Novec™ 71DE in forensic investigation applications.
Composition & Properties
| Composition | Hydrofluoroether (HFE) trans-1,2-Dichloroethylene (t-DCE) |
| 3M™ Novec™ Replacement Type | Similar Molecule, Drop-In Replacement |
| Approved Applications | Cleaning Electronic Components Precision Cleaning De-Watering Electronic Components Carrier or Lubricant Coating Scientific Analysis (Latent Fingerprinting, Tissue Freezing) |
| Cleaning Performance | Medium Duty |
| Boiling Point | 102 °F / 39 °C |
| Stability | Near Azeotrope |
| Vapor Pressure | 368 mmHg |
| Liquid Density | 1.36 g/cm2 |
| Surface Tension | 17 dynes/cm |
| Kauri-Butanol Value | 63 Kb |
| Global Warming Potential (GWP) | Low |
| Ozone Depletion Potential (ODP) | None |
| Volatile Organic Compound (VOC) Designation | Yes – 1,2 trans DCE is a VOC. |
| Flash Point | None |
Materials Compatibility
| Metals | Compatible with common metals and most alloys, such as steel and stainless steel. Incompatible with alkali or alkaline earth metals such as powdered aluminum, zinc and beryllium. |
| Polymers/Plastics* | Compatible with some hard plastics and polymers. Testing is recommended. |
| Elastomers* | Compatible with some elastomers. Testing is recommended. |
*Material compatibility testing should always be performed with specific contaminants under process-specific conditions.
Related Products
BestSolv® is distributed exclusively by Best Technology Inc.



