Electronics Varnishes & Lacquers

Electronics varnishes and lacquers are coating materials applied to PCBs (printed circuit boards) to protect the board and its components from corrosion and the external environment.

Chemicals, dust, temperature extremes and moisture can damage electronic components, so protection is required to ensure efficient functioning is maintained. In addition to protecting electronics from failure or damage, varnishes and lacquers also help electronics to withstand harsh environments.

How do electronics varnishes and lacquers work?

Electronics varnishes and lacquers protect electronic boards from environmental contaminates while also allowing any trapped moisture to escape.

They are typically applied onto a PCB by painting or spraying. By covering and protecting the leads of electronic components, solder joints, exposed traces and other metallic areas from corrosion, these coating materials extend the working life of PCBs.

What are electronics varnishes and lacquers used for?

Electronics varnishes and lacquers provide the necessary combination of reliability and high performance within a vast majority of electronic devices in applications such as:

  • Military and industrial settings
  • The aerospace industry
  • Green energy
  • Shipping
  • Lighting
  • Domestic and mobile electronics

...
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Viewing 1 - 9 of 9 products
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Description Price Colour Application Maximum Operating Temperature Package Type Material Dielectric Strength Package Size Trade Name Minimum Operating Temperature
RS Stock No. 136-8533
BrandRS PRO
$11.91
Each
units
Clear Electrical Circuit Protection +150°C Aerosol Acrylic 45kV/mm 400 ml - -12°C
RS Stock No. 136-8542
BrandRS PRO
$11.11
Each
units
- Mechanical Parts +125°C Aerosol Polymer 48kV/mm 400 ml - -55°C
RS Stock No. 136-8535
BrandRS PRO
$12.01
Each
units
Clear - +120°C Aerosol - 42.6kV/mm 400 ml - -40°C
RS Stock No. 199-1480
BrandRS PRO
$23.52
Each
units
Clear Components, PCBs, Transformers +120°C Can - 60kV/mm 250 ml - -55°C
RS Stock No. 907-4794
Mfr. Part No.31892-AB
BrandAmbersil
$44.31
Each
units
Red Electrical Assemblies, Electrical Switchgear and Circuitry, Motor Manufacturing, Motor Repair/Refurbishment, Transformers - Aerosol - - 400 ml - -
RS Stock No. 823-2640
Mfr. Part No.74313
BrandCRC
$33.35
Each
units
Clear - +60°C Aerosol Acrylic Resin >80kV/mm 400 ml PLASTIK 70 -40°C
RS Stock No. 823-2646
Mfr. Part No.74309
BrandCRC
$21.68
Each
units
Clear Insulation Coils and Transformers, Protect Printed Circuit Boards, Protective Coating on Metal, Paper, Ornaments, Paintings, Furniture, etc +60°C Aerosol Acrylic Resin >80kV/mm 200 ml PLASTIK 70 -40°C
RS Stock No. 118-1554
Mfr. Part No.CPL200H
$16.12
Each
units
Colourless PCBs +100°C Aerosol - 45kV/mm 200 ml - -50°C
RS Stock No. 124-7696
Mfr. Part No.841WB-850ml
$309.89
Each
units
Grey Communication Devices, Electronic Equipment, EMI/RFI Shielding to Electronic Enclosures, Engine Room, Portable Controllers, Sensors, Test Equipment +120°C - Nickel - 850 ml - -40°C