描述
3M Novec 1904 Electronic Grade Coating Spray Application Higher Solids
Type: Electronic Grade Fluoropolymer
Solids: 4.0 wt%
Thickness: 0.25-4.0 µm
Dielectric Strength: 3700 V/mil
Packing: 5KG / 20KG drum
3M Novec 1904 Electronic Grade Coating is a higher solids version (4.0 wt%) of Novec 1902, specifically designed for spray application. This clear, low-viscosity fluorinated polymer solution is diluted in a blend of 3M Novec 7100 and 7200 Engineered Fluids, providing a low surface tension coating that dries to a transparent, ultrathin film with excellent hydrophobic and oleophobic properties. With coating thickness ranging from 0.25 to 4.0 microns — significantly thicker than Novec 1700/1902 — Novec 1904 delivers enhanced protection for PCBs and electronic components in demanding environments.
Novec 1904 offers superior dielectric performance with a dielectric breakdown strength of 3700 V/mil — nearly double that of Novec 1700/1902 (2000 V/mil) — and a lower dielectric constant of 2.8. Its higher glass transition temperature (52°C vs 44.5°C) provides improved thermal stability. The coating provides excellent repellency against water, hydrocarbons, silicones, and photoresists with water contact angle of 105° and hexadecane angle of 65°. It adheres well to metals, glass, ceramics, polymers, and laminates, and withstands 175°C for 24 hours while maintaining repellency. Environmentally, it is nonflammable, non-ozone-depleting, low in toxicity, low GWP, RoHS compliant, and VOC exempt (per U.S. EPA). With a 2-year shelf life and easy spray application, Novec 1904 is ideal for PCB protection, display connections, and demanding conformal coating applications.
Genuine 3M Imported Stock and Technical Support
We supply stable spot inventory of genuine 3M Novec 1904 electronic grade coating. Official TDS, SDS, and batch COA documents are available for PCB protection, spray coating, and high-performance conformal coating applications.
Request Novec 1904 Coating Quotation, TDS, SDS, and Sample
Complete SDS, COA, and technical documentation available
Core Advantages of 3M Novec 1904 Electronic Grade Coating
- Higher solids content: 4.0 wt% — provides thicker protective coating (0.25-4.0 µm) for enhanced durability
- Spray application optimized — specifically designed for spray coating, also suitable for dip and syringe dispensing
- Superior dielectric strength: 3700 V/mil — nearly double the breakdown strength of Novec 1700/1902
- Low dielectric constant: 2.8 — excellent electrical insulation for high-frequency applications
- Higher Tg: 52°C — improved thermal stability compared to Novec 1700/1902 (44.5°C)
- Hydrophobic and oleophobic — water contact angle 105°, repels liquids and contaminants
- No curing required — dries at room temperature in minutes, no post-application bake
- VOC exempt (U.S. EPA) — environmentally compliant for electronics manufacturing
Main Applications
- PCB moisture and corrosion protection — for consumer, industrial, and automotive electronics
- Spray coating applications — high-volume manufacturing requiring spray application
- Display connection protection — protection of anisotropic conductive film (ACF) connections and display components
- Conformal coating alternative — thicker, more durable replacement for traditional conformal coatings
- Anti-migration coating — prevents migration of lubricants and photoresists in displays and spindle motors
- Protection against corrosive gases — for components exposed to harsh industrial environments
Full Technical Parameters
| Property | Typical Value | Test Method |
| Coating Type | Fluorinated polymer in HFE solvent blend | — |
| Solids Content | 4.0 wt% | — |
| Solvent System | Novec 7100 + 7200 Blend | — |
| Appearance (Solution) | Clear colorless liquid | Visual |
| Coating Appearance | Transparent, colorless | Visual |
| Density | 1.43 g/ml | ASTM D891 |
| Viscosity | 1.11 cP | — |
| Boiling Point | 71°C | ASTM D1120-94 |
| Flash Point | None | Closed cup |
| Coating Thickness | 0.25-4.0 microns | — |
| Glass Transition Temperature | 52°C | DSC |
| Water Contact Angle (static) | 105° | Goniometer |
| Hexadecane Contact Angle | 65° | Goniometer |
| Refractive Index | 1.3841 | — |
| Dielectric Constant (@1kHz, 30% RH) | 2.8 | ASTM D150 |
| Dissipation Factor (@1kHz, 30% RH) | 0.011 | ASTM D150 |
| Dielectric Breakdown Strength (35% RH) | 3700 V/mil | ASTM D149 |
| Thermal Stability | Up to 175°C for 24 hours | — |
| Solder-Through Repairability | Yes | — |
| Flammability | UL 94 V-0 | UL 94 |
| VOC Status | Exempt (U.S. EPA) | — |
| RoHS | Compliant | — |
| Shelf Life | 2 years | — |
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 Conditions | Store at 16-27°C (60-80°F) and <60% R.H. in original unopened containers. |
| Shelf Life | 2 years from date of manufacture when stored as recommended. |
| Application Precautions | Surfaces must be clean and dry before application. Spray application is preferred. Do not spray without proper ventilation and PPE. |
| Thermal Limits | Do not heat solution above 150°C; dry film should not exceed 250°C to avoid decomposition. |
| Operation Protection | Use with adequate ventilation and appropriate PPE. Read SDS before use. |
Official Technical Documentation
| Document Type | Document Introduction | Document Request |
| TDS | 3M Novec 1904 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 with solids and purity specifications | Request COA |
Frequently Asked Questions
What is 3M Novec 1904 Electronic Grade Coating?
3M Novec 1904 is a higher solids version (4 wt%) of Novec 1902, specifically designed for spray application. It provides thicker transparent coating (0.25-4.0 µm) for moisture and corrosion protection of PCBs and electronic components.
What is the difference between Novec 1904 and Novec 1902?
Novec 1904 has higher solids content (4% vs 2%), thicker coating (0.25-4.0 µm vs 0.1-1.0 µm), higher Tg (52°C vs 44.5°C), lower dielectric constant (2.8 vs 3.2), and higher dielectric breakdown strength (3700 V/mil vs 2000 V/mil). It is specifically designed for spray application.
Is Novec 1904 coating environmentally friendly?
Yes. Novec 1904 is nonflammable, non-ozone-depleting, low in toxicity, low GWP, RoHS compliant, and VOC exempt per U.S. EPA.
What is the shelf life of Novec 1904 coating?
Novec 1904 has a shelf life of 2 years from date of manufacture when stored in original unopened container at 16-27°C and <60% RH.
What is the dielectric strength of Novec 1904?
Novec 1904 offers high dielectric breakdown strength of 3700 V/mil, significantly higher than Novec 1700/1902 (2000 V/mil), providing superior electrical insulation.
Can Novec 1904 coating be removed for rework?
Yes. Novec 1904 allows solder-through repairability and can be removed with Novec 72DA or 7200 Engineered Fluids for component rework.
What is the glass transition temperature of Novec 1904?
Novec 1904 has a glass transition temperature (Tg) of 52°C, higher than Novec 1700/1902 (44.5°C), providing better thermal stability.
Related 3M Novec Products
Compare 3M Novec electronic grade coatings for different protection requirements.
| Product | Solids | Coating Thickness | Tg | Dielectric Strength | Best For |
| Novec 1904 | 4.0 wt% | 0.25-4.0 µm | 52°C | 3700 V/mil | Spray application, higher solids |
| Novec 1902 | 2.0 wt% | 0.1-1.0 µm | 44.5°C | 2000 V/mil | PCB protection, higher boiling |
| Novec 1700 | 2.0 wt% | 0.1-1.0 µm | 44.5°C | 2000 V/mil | PCB moisture/corrosion protection |
Get 3M Novec 1904 Coating Bulk Pricing and Technical Support
We supply genuine 3M Novec 1904 electronic grade coating for spray application, PCB protection, and display connection protection. Contact us for bulk pricing, sample availability, technical documents, and application support.
Request Novec 1904 Coating 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.
