Yottadeft Optoelectronics Technology Co., Ltd. (崇浩光電科技) is the master distributor of TMC electronic fluorinated fluids in Asia, based in Taoyuan, Taiwan. This page maps the applications formerly served by 3M Novec and Fluorinert products to corresponding TMC fluid options, and explains how to evaluate a switch.
3M Has Exited Fluorinated Fluids — What Users Need Now
3M exited the fluorinated engineering fluids business, with final orders taken in 2025. This ended new supply of Novec engineered fluids and Fluorinert electronic liquids, which had long served single-phase and two-phase immersion cooling, semiconductor process and equipment cooling, dielectric baths, vapor phase reflow, precision cleaning, and thermal shock / burn-in / leak testing. Users of these products now need a qualified alternative supply source for the same applications. TMC electronic fluorinated fluids, supplied across Asia by Yottadeft, cover these application areas.
Correspondence by Application, Not Chemical Equivalence
Our recommendations are based on application correspondence: for each use case formerly served by a Novec or Fluorinert grade, we propose a TMC fluid suited to that application. We do not claim that any TMC fluid is chemically identical or equivalent to any 3M product. For every recommendation, we provide the TMC technical data sheet (TDS) so your engineering team can verify thermal, electrical, and material-compatibility requirements against your own specification before any changeover.
Application Mapping: Former 3M Applications to TMC Options
The table below lists common applications, the 3M products that formerly served them, and the TMC fluid we recommend evaluating for each. Boiling points shown are for the TMC fluids.
| Application | Formerly served by (3M) | TMC option | Boiling point (TMC) |
|---|---|---|---|
| Single-phase immersion cooling — data centers and AI servers | Novec 7500 | TMC-7500 | 129°C |
| Two-phase immersion cooling | Novec 649 | TMC-649 | 49°C |
| Two-phase immersion cooling — lower boiling point | Novec two-phase grades | TMC-49 | 47°C |
| Semiconductor process and equipment cooling; dielectric baths; electronic testing | Fluorinert FC-3283 | TMC-3283 | 128°C |
| High-temperature testing — thermal shock and burn-in | Fluorinert FC-40 | TMC-40 | 165°C |
| Precision cleaning, vapor phase reflow, leak testing | Various Novec / Fluorinert grades | Contact us for selection | (refer to TDS) |
Mapping is by application area only; it is not a claim of chemical equivalence. For side-by-side physical properties, see the full property comparison table, or read the Chinese-language version of this guide.
How to Evaluate a Migration in 4 Steps
A structured evaluation lets you qualify a TMC fluid against your existing process with minimal risk. The typical process has four steps.
- Define the operating window. Document the temperature range, single-phase or two-phase operation, heat load, and all materials in contact with the fluid (seals, polymers, metals, coatings).
- Compare data sheets. Request the TDS of the candidate TMC fluid from Yottadeft and compare its key properties against the specification of the 3M fluid you are replacing.
- Run a sample evaluation. Test the TMC fluid in your own equipment or a representative rig to confirm thermal performance and material compatibility.
- Plan the changeover and supply. Confirm volumes, packaging, lead times, and ongoing supply with Yottadeft before scheduling the switch.
Frequently Asked Questions
Where can I buy an alternative to 3M Novec in Asia?
Yottadeft Optoelectronics Technology Co., Ltd. (崇浩光電科技) is the master distributor of TMC electronic fluorinated fluids in Asia, based in Taoyuan, Taiwan. TMC fluids serve the application areas formerly covered by 3M Novec and Fluorinert products, including immersion cooling, semiconductor equipment cooling, and reliability testing. Contact info@yottadeft.com for availability in your country.
Is TMC identical to 3M Novec or Fluorinert?
No. We do not claim chemical equivalence between TMC fluids and any 3M product. We advise correspondence by application: for each use case formerly served by a Novec or Fluorinert grade, we recommend a TMC fluid suited to that application and provide the technical data sheet (TDS) so your engineers can verify suitability before switching.
Which TMC fluid corresponds to the single-phase immersion cooling application formerly served by 3M Novec 7500?
TMC-7500, with a boiling point of 129°C, is the TMC option for single-phase immersion cooling in data centers and AI servers, the application area formerly served by 3M Novec 7500. Request the TDS to confirm fit for your specific system.
What should I check before switching from a 3M fluid to a TMC fluid?
Four steps: define your operating window (temperature range, single-phase or two-phase operation, materials in contact with the fluid); compare the TMC fluid’s TDS against your current specification; run a sample evaluation in your own equipment; and plan volumes, packaging, and lead times with Yottadeft before the changeover.
Can I still order 3M Novec or Fluorinert fluids?
3M has exited the fluorinated engineering fluids business, with final orders taken in 2025. Users of Novec and Fluorinert products therefore need an alternative supply source. Yottadeft supplies TMC electronic fluorinated fluids in Asia for the applications those products formerly served.
Or email info@yottadeft.com — Yottadeft, Taoyuan, Taiwan