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home Best Technology / BestSolv™ Chemicals, Solvents & Fluids / BestSolv™ Engineered Fluids: 3M™ Novec™ Replacement / BestSolv™ Theta: Engineered Fluid and Cleaning Solvent – 3M™ Novec™ 71DA Replacement

BestSolv™ Theta: Engineered Fluid and Cleaning Solvent – 3M™ Novec™ 71DA Replacement

Table of contents
  1. BestSolv™ Theta – Replacement for 3M™ Novec™ 71DA
  2. Benefits of BestSolv™ Theta
  3. Data Sheets
  4. Common Applications
  5. Properties of Best Solv™ Theta vs 3M™ Novec™ 71DA
  6. BestSolv™ Theta Packaging
  7. BestSolv™ HFE Price and Ordering

What are PFAS Chemicals?

This BestSolv™ Engineered Fluid is NOT considered a PFAS (per- and polyfluoroalkyl substance) under the U.S. EPA’s currently proposed definition.

BestSolv Theta - Novec 71DA Replacement

BestSolv™ Theta – Replacement for 3M™ Novec™ 71DA

BestSolv™ Theta engineered fluid is a non-flammable cleaning solvent used in a wide variety of industrial applications, including vapor degreasing and solvent cleaning of precision and industrial parts containing true machining oils.

BestSolv™ Theta cleaning solvent is formulated as a drop-in 3M™ Novec™ 71DA alternative fluid, 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

TypePDF

Safety Data Sheet

PDF

Technical Data Sheet

PDF

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Common Applications

Novec 71DA replacement precision cleaning parts

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

Property3M™ Novec™ 71DABest Solv™ Theta
CompositionHydrofluoroether (HFE) blend with 1,2 trans DCE and EthanolHydrofluoroether (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 PerformanceMedium DutyMedium Duty
Boiling Point104 °F / 40 °C102 °F / 39 °C
StabilityNear AzeotropeNear Azeotrope
Vapor Pressure381 mmHg368 mmHg
Liquid Density1.33 g/cm21.36 g/cm2
Surface Tension16.4 dynes/cm17 dynes/cm
Kauri-Butanol Value33 Kb63 Kb
Global Warming Potential (GWP)LowLow
Ozone Depletion Potential (ODP)NoneNone
Volatile Organic Compound (VOC) DesignationYes – 1,2 trans DCE is a VOC.Yes – 1,2 trans DCE is a VOC.
Flash PointNoneNone

BestSolv™ Theta Packaging

Product #SKUContainer Sizes Available
(Gallons)
Approx. Weight
(Lbs.)
BestSolv™ Theta-552370041055 gal. drum551 lbs.
BestSolv™ Theta-05237004255 gal. pail50 lbs.

BestSolv™ HFE Price and Ordering

For purposes of product stewardship, Best Solv™ 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.

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