Address
304 North Cardinal
St. Dorchester Center, MA 02124
Work Hours
Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM
3M Novec 2708 Electronic Grade Coating for PCB Moisture and Corrosion Protection
3M 2708 is easy to apply and process – dries within seconds and does not require post-heat curing.
Requires little or no masking.
Allows weld-through repair and is easily removable for rework and repair.
Has low volatile organic compound (VOC) content and low global warming potential.
Has excellent dielectric properties, thermal stability and electrical stability.
Has excellent repellency, moisture resistance and anti-sticking properties against liquids, water, hydrocarbons, silicones and photoresists.
Contains UV fluorescent dyes incorporated into the polymer for improved QC detection.
3M™ Novec™ 2708 electronic grade coating is specifically designed to protect printed circuit boards and electronic components. It is a low-viscosity solution of 8 wt% fluorinated acrylic polymer carried in a hydrofluoroether solvent. It is UV detectable.
3M™ Novec™ 2708 electronic grade coating is specifically designed for moisture and corrosion protection of printed circuit boards and electronic components. It is a low-viscosity, low surface tension 8 wt% fluorinated acrylic polymer solution carried in a hydrofluoroether solvent.
3M Novec 2708 Electronic Grade Coating Performance
The coating solution contains 8.0% by weight fluorinated polymer in 3M Novec 7200 Engineered Fluid with less than 5% PGMEA. Typical solution properties include a density of 1.4 g/ml at 23°C, viscosity of 4.9 cP, and boiling point of approximately 79°C. After the carrier solvent evaporates, the material leaves a transparent light-yellow to orange coating with a typical thickness of approximately 0.4 to 5.0 microns, depending on the selected application method and deposition amount.
The dried film provides strong hydrophobic and oleophobic behavior. Water, hydrocarbons, silicones, lubricating oils, and photoresist solutions can bead and drain from properly coated surfaces, helping reduce wetting, liquid migration, corrosion, and contamination. A yellow-orange dye built into the polymer fluoresces under ultraviolet light, allowing operators and quality-control teams to confirm coating presence and identify missed areas during inspection.
PCB and Precision Electronic Applications
3M Novec 2708 Electronic Grade Coating can be used on printed circuit boards, sensors, connectors, displays, spindle motors, lubricated electronic parts, automotive modules, communication devices, industrial controls, and other precision assemblies. It adheres to many metals, glass, ceramics, polymers, composites, and laminates. Its electrical stability and dielectric properties support applications requiring insulation and environmental protection without the thickness of conventional potting compounds.
The coating is suitable for spray, dip, brush, and selective-dispensing processes. Its excellent surface wetting supports coverage beneath tightly spaced components, while rapid solvent evaporation allows coated parts to be handled in under two minutes under suitable room-temperature conditions. It also supports solder-through repair, helping technicians access selected joints without completely stripping the surrounding coating.
7 Benefits of 3M Novec 2708 Electronic Grade Coating
- Single-component application: Requires no measuring, mixing, or hardener preparation.
- Rapid room-temperature drying: Eliminates the need for a post-application curing process.
- Ultrathin protection: Adds minimal weight and dimensional change to precision assemblies.
- Environmental resistance: Helps protect against moisture, chemicals, corrosion, and contamination.
- UV inspection: Fluorescent dye supports fast production-line quality control.
- Excellent surface wetting: Reaches beneath low-clearance SMT components and narrow spaces.
- Flexible processing: Suitable for spraying, dipping, brushing, and selective dispensing.
Application, Removal, and Storage Guidance
Clean and dry all surfaces before coating. Remove oils, dust, moisture, flux residue, and other contamination that could interfere with deposition. Water must be kept out of dip tanks because it can disrupt coating formation. Apply a controlled amount using the validated process, then allow the solvent to evaporate fully before handling or testing the assembly.
The product may be diluted with 3M Novec 7200 Engineered Fluid. Where removal is required, 3M Novec 72DA Engineered Fluid is identified as the preferred option, while Novec 7200 may also be used. Store unopened containers between 16°C and 27°C at less than 60% relative humidity. The published shelf life is two years from the manufacturing date in the original sealed package.
Official Resources and Current Availability
Review the official 3M Novec 2708 technical data sheet for technical properties, processing guidance, and safety requirements. Buyers should also review the official 3M PFAS manufacturing exit information. Because 3M completed its PFAS manufacturing exit at the end of 2025, buyers should verify remaining stock, manufacturing date, shelf life, destination-country regulations, and current documentation before purchasing this legacy product.
Explore our electronic conformal coatings for alternative PCB protection products, or browse our PCB protection materials for coatings, encapsulants, cleaners, and moisture-control solutions. Contact our sales team with the required package size, quantity, application process, and destination country for inventory confirmation, technical documentation, and quotation support.
