描述
3M Novec 1902 Electronic Grade Coating PCB Protection Higher Boiling
Type: Electronic Grade Fluoropolymer
Solids: 2.0 wt%
Boiling Point: 78°C
Viscosity: 0.81 cP
Packing: 5KG / 20KG drum
3M Novec 1902 Electronic Grade Coating is a single-component fluorinated polymer solution designed for moisture and corrosion protection of printed circuit boards and electronic components. Diluted in a blend of 3M Novec 7100 and 7200 Engineered Fluids, this coating solution offers a higher boiling point (78°C) and lower viscosity (0.81 cP) compared to Novec 1700, providing different evaporation characteristics for application flexibility. It dries to an ultrathin, transparent film with excellent hydrophobic and oleophobic properties, requiring no curing and drying in minutes at room temperature.
Novec 1902 delivers outstanding repellency against water, hydrocarbons, silicones, and photoresists with water contact angle of 105° and hexadecane angle of 65°. The coating adheres well to metals, glass, ceramics, polymers, and laminates, and withstands 175°C for 24 hours while maintaining repellency. It is reworkable — removable with Novec 72DA or 7200 Engineered Fluids for easy component repair and rework. 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 application by spray, dip, brush, or selective dispensing, Novec 1902 offers a reliable, cost-effective conformal coating solution for electronics manufacturing.
Genuine 3M Imported Stock and Technical Support
We supply stable spot inventory of genuine 3M Novec 1902 electronic grade coating. Official TDS, SDS, and batch COA documents are available for PCB protection, conformal coating, and anti-corrosion applications.
Request Novec 1902 Coating Quotation, TDS, SDS, and Sample
Complete SDS, COA, and technical documentation available
Core Advantages of 3M Novec 1902 Electronic Grade Coating
- Higher boiling solvent blend: 78°C — 7100 and 7200 mixed solvent system for controlled evaporation
- Low viscosity: 0.81 cP — excellent flow and wetting for uniform coating coverage
- Ultrathin transparent protection — 0.1-1.0 micron coating preserves component aesthetics and heat dissipation
- Hydrophobic and oleophobic — water contact angle 105°, repels liquids and contaminants
- No curing required — dries at room temperature in minutes, no post-application bake
- Reworkable — easily removed with Novec 72DA or 7200 for component repair
- Excellent dielectric properties — dielectric constant 3.2, breakdown strength 2000 V/mil
- VOC exempt (U.S. EPA) — environmentally compliant for electronics manufacturing
Main Applications
- PCB moisture and corrosion protection — for consumer, industrial, and automotive electronics
- Conformal coating alternative — easy-to-apply 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 or marine environments
- Anti-wetting and anti-stiction — for MEMS, sensors, and optical components
Full Technical Parameters
| Property | Typical Value | Test Method |
| Coating Type | Fluorinated polymer in HFE solvent blend | — |
| Solids Content | 2.0 wt% | — |
| Solvent System | Novec 7100 + 7200 Blend | — |
| Appearance (Solution) | Clear colorless liquid | Visual |
| Coating Appearance | Transparent, colorless | Visual |
| Density (23°C) | 1.43 g/ml | ASTM D891 |
| Viscosity | 0.81 cP | — |
| Boiling Point | 78°C | ASTM D1120-94 |
| Flash Point | None | Closed cup |
| Coating Thickness | 0.1-1.0 microns | — |
| Glass Transition Temperature | 44.5°C | DSC |
| Water Contact Angle (static) | 105° | Goniometer |
| Hexadecane Contact Angle | 65° | Goniometer |
| Refractive Index | 1.39 | — |
| Dielectric Constant (@1kHz, 30% RH) | 3.2 | ASTM D150 |
| Dissipation Factor (@1kHz, 30% RH) | 0.002 | ASTM D150 |
| Dielectric Breakdown Strength (30% RH) | 2000 V/mil | ASTM D149 |
| Thermal Conductivity | 0.1 W/m·K | — |
| CTE (TMA) | 70 μm/(m·°C) | TMA |
| Thermal Stability | Up to 175°C for 24 hours | MIL-B-81744A |
| Reworkable | Yes | — |
| Removal Method | Novec 72DA (preferred) or 7200 | — |
| 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 | Keep water out of coating bath. Surfaces must be clean and dry before application. |
| Thermal Limits | Do not heat solution above 150°C; dry film should not exceed 225°C to avoid decomposition. |
| Removal | Use 3M Novec 72DA Engineered Fluid (preferred) or Novec 7200 Engineered Fluid. |
| 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 1902 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 1902 Electronic Grade Coating?
3M Novec 1902 is a single-component fluorinated polymer coating diluted in a blend of Novec 7100 and 7200 engineered fluids. It provides ultrathin transparent moisture and corrosion protection for PCBs and electronic components with excellent hydrophobic and oleophobic properties.
What is the difference between Novec 1902 and Novec 1700?
Novec 1902 uses a 7100 and 7200 mixed solvent system with higher boiling point (78°C vs 61°C) and lower viscosity (0.81 cP vs 0.91 cP), offering different evaporation characteristics for coating applications. Shelf life is 2 years vs 4 years for 1700.
How is Novec 1902 coating applied?
Novec 1902 can be applied by spray, dip, brush, or selective dispensing. It dries quickly at room temperature without curing and can be handled in under two minutes.
Is Novec 1902 coating reworkable?
Yes. Novec 1902 coating can be removed with 3M Novec 72DA Engineered Fluid (preferred) or Novec 7200 Engineered Fluid for rework and repair.
Is Novec 1902 coating environmentally friendly?
Yes. Novec 1902 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 1902 coating?
Novec 1902 has a shelf life of 2 years from date of manufacture when stored in original unopened container at 16-27°C and <60% RH.
Is Novec 1902 coating compatible with solvents?
Novec 1902 resists a variety of solvents and chemicals but dissolves in acetone. It is essentially insoluble in heptanes, toluene, and water.
Related 3M Novec Products
Compare 3M Novec electronic grade coatings for different protection requirements.
| Product | Solvent | Boiling Point | Viscosity | Shelf Life | Best For |
| Novec 1902 | 7100 + 7200 Blend | 78°C | 0.81 cP | 2 years | PCB protection, higher boiling |
| Novec 1700 | 7100DL | 61°C | 0.91 cP | 4 years | PCB moisture/corrosion protection |
| Novec 1702 | 7100DL | 61°C | — | 4 years | Low stand-off protection |
Get 3M Novec 1902 Coating Bulk Pricing and Technical Support
We supply genuine 3M Novec 1902 electronic grade coating for PCB protection, conformal coating, and anti-corrosion applications. Contact us for bulk pricing, sample availability, technical documents, and application support.
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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.
