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KEY-221 Hejing · Electronic Nanocoating
KEY-221 Hejing · Electronic Nanocoating
  • KEY-221 Hejing · Electronic Nanocoating
  • KEY-221 Hejing · Electronic Nanocoating

KEY-221 Hejing · Electronic Nanocoating

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KEY-221 Hejing · Electronic Nanocoating

Product Highlights

Water contact angle 125°
Coating thickness as low as 2-3 μm
Compliant with RoHS and REACH environmental directives
Suitable for various adhesion processes
Waterproof, moisture-proof and corrosion-resistant
Reduce dust adhesion
Wear-resistant
Suitable for glass and metal surfaces
Strong adhesion


Product Description

KEY-221 Hejing electronic nanocoating is a colorless, transparent, and low-odor liquid with ultra-low viscosity and ultra-high leveling properties. After simple impregnation, spraying, or other processes, and followed by room temperature drying or rapid baking, it can form a waterproof, moisture-proof, insulating, and corrosion-resistant coating on electronic PCBA circuit boards, various components, and ITO surfaces.

This coating is completely colorless and transparent, does not affect electronic signals or heat dissipation, is non-flammable and non-explosive, safe and environmentally friendly, and has wide applications in industries such as smart wearables, smart healthcare, smart homes, military communications, and new energy.


Features

  • High Hydrophobicity: Low surface energy (<10 dyne), capable of covering narrow gaps.
  • Ultra-thin: Coating thickness as low as 2-3μm, colorless and transparent.
  • Excellent Weatherability: Resistant to UV radiation, extreme temperature fluctuations, waterproof, rustproof, and corrosion-resistant (salt spray resistance, oxidation resistance, acid and alkali resistance). 
  • High Insulation: High impedance value, high density, minimal porosity.
  • No Impact on Signals or Heat Dissipation: Thin coating thickness with excellent thermal conductivity.
  • Superior Adhesion: Suitable for diverse substrates including metals, glass, ceramics, polymers, composites, and laminates.
  • Simple Process: Quick-drying formulation compatible with dip coating, spot coating, flow coating, spray coating, and other application methods.
  • Repairable: Supports direct solder repair; coating is easily removable and can be recoated for rework.
  • Environmentally Friendly & Non-Toxic: Utilizes eco-friendly electronic fluorinated liquid with minimal odor, posing no harm to humans and being environmentally compatible.


Industry Applications

 

Performance indicators 

KEY-221 Hejing · Electronic Nanocoating

AppearanceColorless and transparent liquid
Density(1.812±0.05) g/cm³
Surface drying timeNormal temperature: 2-5 minutes
Practical timeNormal temperature:12h;50~60 ℃ :0.5h
SolventFluorinated fluid
Solvent boiling point118 ℃
Flash pointNo (closed cup)
CompatibilityInsoluble in solvents such as heptane, toluene, and water.
Water contact angle117-125°
Oleic acid contact angle101-105°
Hardness20-25HD
AdhesionLevel 0
Decomposition temperature272 ℃


Test data

Test ProjectParameterDetection methods
Salt spray corrosion resistance72h(pH 6.5)GB 10125-2012
Acid corrosion resistant96h(pH 2.0)GB-T 9274-1988
Acid corrosion resistant
96h(pH 12)GB-T 9274-1988


Packaging specifications

5 kg、10 kg、15 kg、20 kg、25 kg、50 kg、100 kg


Transportation and storage

Transport as non-hazardous chemicals and non-corrosive chemicals. 

 Store away from light and heat. 

 Single packages must not be stacked more than two layers, and the bottom layer must be secured with a non-slip tray to prevent squeezing, deformation, or tipping.

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