描述
3M Novec 71DE Engineered Fluid Azeotropic Degreasing Solvent
Type: Azeotropic Blend
Boiling Point: 41°C
Surface Tension: 16.6 dynes/cm
ODP/GWP: 0 / 160
Packing: 5 kg / 20 kg drum
3M Novec 71DE Engineered Fluid is a true azeotropic blend of methyl nonafluorobutyl ether (C₄F₉OCH₃, 50%) and trans-1,2-dichloroethylene (t-DCE, 50%). As a true azeotrope, it maintains constant vapor and liquid composition at its boiling point of 41°C, ensuring consistent cleaning performance without composition shift during distillation or reclamation. This nonflammable fluid is specifically designed for medium-duty cleaning and degreasing applications, offering an environmentally sustainable alternative to ozone-depleting materials and traditional chlorinated solvents.
Novec 71DE provides enhanced solvency with a Kauri-Butanol value of 27 and low surface tension of 16.6 dynes/cm, ensuring excellent wetting and penetration for effective removal of oils, greases, and waxes from complex components. With zero ozone depletion potential, a low GWP of 160, and favorable regulatory profile (t-DCE is not a Hazardous Air Pollutant), this fluid is ideal for vapor degreasing, immersion cleaning, and specialty solvent applications including coating and lubricant deposition where increased solvency is required.
Genuine 3M Imported Stock and Technical Support
We supply stable spot inventory of genuine 3M Novec 71DE engineered fluid. Official TDS, SDS, and batch COA documents are available for degreasing, cleaning, and specialty solvent applications.
Request Novec 71DE Quotation, TDS, SDS, and Sample
Complete SDS, COA, and technical documentation available
Core Advantages of 3M Novec 71DE Engineered Fluid
- True azeotropic composition — constant boiling point and composition, no fractionation during distillation
- Zero ozone depletion potential — environmentally sustainable replacement for ODS solvents
- Low GWP: 160 — significantly lower than many cleaning solvent alternatives
- Enhanced solvency — KB value of 27 for effective removal of oils, greases, and waxes
- Low surface tension: 16.6 dynes/cm — excellent penetration and wetting for complex components
- Nonflammable — no flash point, safe operation in manufacturing environments
- Favorable regulatory profile — t-DCE is not a Hazardous Air Pollutant (HAP)
- Versatile applications — suitable for degreasing, cleaning, coating, and lubricant deposition
Main Applications
- Medium-duty degreasing — removal of oils, greases, and waxes from components
- Vapor degreasing — immersion and vapor phase cleaning of precision parts
- Immersion cleaning — effective cleaning of complex geometries and assemblies
- Rinsing and drying agent — spot-free drying of precision components
- Specialty solvent applications — coatings and lubricant deposition requiring increased solvency
- Replacement for chlorinated solvents — drop-in replacement for CFC-113, HCFC-141b, and HCFC-225
Full Technical Parameters
| Property | Typical Value | Test Method |
| Composition | Methyl Nonafluorobutyl Ether (50%) / t-DCE (50%) | — |
| Appearance | Clear colorless liquid | Visual |
| Azeotrope Type | True azeotrope | — |
| Boiling Point | 41°C | ASTM D1078 |
| Freeze Point | -24°C | ASTM D97 |
| Liquid Density (25°C) | 1.37 g/ml | ASTM D891 |
| Surface Tension | 16.6 dynes/cm | — |
| Vapor Pressure (25°C) | 383 mmHg | — |
| Viscosity (25°C) | 0.45 cP | — |
| Kauri-Butanol Value | 27 | — |
| Heat of Vaporization | 48 cal/g | — |
| Ozone Depletion Potential | 0.00 | — |
| Global Warming Potential | 160 | — |
| Flash Point | None | — |
| Flammability | Nonflammable | ASTM E681-94 |
| Exposure Guideline (HFE component, 8hr TWA) | 750 ppm | AIHA |
| Exposure Guideline (t-DCE, 8hr TWA) | 200 ppm | — |
Note: All listed figures are typical values and may vary by production batch. Complete independent qualification testing is required before mass production deployment.
Handling and Storage Recommendations
| Storage Rules | Store sealed original containers in a dry, well-ventilated area away from heat sources and direct sunlight. |
| Forbidden Environments | Avoid exposure to open flames, strong oxidizing agents, and reactive metal powders. |
| Operation Protection | Maintain adequate ventilation. Wear nitrile protective gloves and anti-splash safety goggles during handling. |
Official Technical Documentation
| Document Type | Document Introduction | Document Request |
| TDS | 3M Novec 71DE original factory technical data sheet | Request TDS |
| SDS | Safety data sheet covering transport, storage, and handling guidelines | Request SDS |
| COA | Batch-specific certificate of analysis | Request COA |
Frequently Asked Questions
What is 3M Novec 71DE Engineered Fluid?
3M Novec 71DE is a true azeotropic blend of methyl nonafluorobutyl ether (50%) and trans-1,2-dichloroethylene (50%). It is specifically formulated for medium-duty cleaning, degreasing, and specialty solvent applications with constant boiling composition and zero ozone depletion potential.
What is the difference between Novec 71DA and 71DE?
Novec 71DA contains ethanol (2.7%) for enhanced ionic contaminant removal and is designed for defluxing applications. Novec 71DE is a simpler binary azeotrope (HFE + t-DCE, no ethanol) designed for medium-duty degreasing and cleaning of oils, greases, and waxes.
What is the boiling point of Novec 71DE?
Novec 71DE has a boiling point of 41°C with a freeze point of -24°C. As a true azeotrope, it maintains constant vapor and liquid composition at its boiling point.
Is Novec 71DE flammable?
No. Novec 71DE is nonflammable with no flash point, providing safe operation in cleaning and degreasing applications.
What applications is Novec 71DE suitable for?
Novec 71DE is ideal for medium-duty cleaning and degreasing of oils, greases, and waxes, vapor degreasing, immersion cleaning, rinsing and drying, and specialty solvent applications including coatings and lubricant deposition.
What is the exposure guideline for Novec 71DE?
Novec 71DE has component-specific exposure guidelines: 750 ppm (HFE component) and 200 ppm (trans-1,2-dichloroethylene), providing a large margin of safety in intended cleaning applications.
Is Novec 71DE a VOC?
The HFE component is excluded from VOC definition by U.S. EPA. The t-DCE component is VOC-designated but is not considered a Hazardous Air Pollutant (HAP).
Related 3M Novec Engineered Fluids
Compare 3M Novec engineered fluids for different cleaning and application requirements.
| Product Grade | Type | Composition | Boiling Point | Core Application |
| Novec 71DE | Azeotropic blend | HFE + t-DCE (50/50) | 41°C | Medium-duty degreasing |
| Novec 71DA | Azeotropic blend | HFE + t-DCE + Ethanol | 40°C | Defluxing |
| Novec 7100 | Single compound | Methyl Nonafluorobutyl Ether | 61°C | Solvent cleaning, heat transfer |
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We supply genuine 3M Novec 71DE azeotropic engineered fluid for degreasing, cleaning, and specialty solvent applications. Contact us for bulk pricing, sample availability, technical documents, and application support.
Request Novec 71DE Technical Details
Disclaimer: All technical data on this page are for general guidance only and are not product specifications. Buyers must carry out independent trials and verify suitability before bulk ordering. Actual values may vary between production lots.
