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 - 10 of 10 products
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Description Price Package Size Package Type Application Material Colour Dielectric Strength Maximum Operating Temperature Minimum Operating Temperature
RS Stock No. 217-3857
BrandRS PRO
$9.49
Each
units
250 ml Aerosol Glass, Plastic Acrylic White - - -
RS Stock No. 136-8535
BrandRS PRO
$9.77
Each
units
400 ml Aerosol - - Clear 42.6kV/mm +120°C -40°C
RS Stock No. 199-1480
BrandRS PRO
$23.17
Each
units
250 ml Can Components, PCBs, Transformers - Clear 60kV/mm +120°C -55°C
RS Stock No. 136-8533
BrandRS PRO
$9.71
Each
units
400 ml Aerosol Electrical Circuit Protection Acrylic Clear 45kV/mm +150°C -12°C
RS Stock No. 136-8542
BrandRS PRO
$9.34
Each
units
400 ml Aerosol Mechanical Parts Polymer - 48kV/mm +125°C -55°C
RS Stock No. 907-4794
Mfr. Part No.31892-AB
BrandAmbersil
$38.34
Each
units
400 ml Aerosol Electrical Assemblies, Electrical Switchgear and Circuitry, Motor Manufacturing, Motor Repair/Refurbishment, Transformers - Red - - -
RS Stock No. 823-2640
Mfr. Part No.74313
BrandCRC
$31.12
Each
units
400 ml Aerosol - Acrylic Resin Clear >80kV/mm +60°C -40°C
RS Stock No. 823-2646
Mfr. Part No.74309
BrandCRC
$18.50
Each
units
200 ml Aerosol Insulation Coils and Transformers, Protect Printed Circuit Boards, Protective Coating on Metal, Paper, Ornaments, Paintings, Furniture, etc Acrylic Resin Clear >80kV/mm +60°C -40°C
RS Stock No. 118-1554
Mfr. Part No.CPL200H
$15.88
Each
units
200 ml Aerosol PCBs - Colourless 45kV/mm +100°C -50°C
RS Stock No. 124-7696
Mfr. Part No.841WB-850ml
$290.49
Each
units
850 ml - Communication Devices, Electronic Equipment, EMI/RFI Shielding to Electronic Enclosures, Engine Room, Portable Controllers, Sensors, Test Equipment Nickel Grey - +120°C -40°C
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