Electronics Varnishes

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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Description Price Colour Application Maximum Operating Temperature Package Type Material Dielectric Strength Package Size Trade Name Minimum Operating Temperature
RS Stock No. 823-2640
Mfr. Part No.74313
BrandCRC
€16.97
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
€11.61
Each
units
Clear Etc, Furniture, Insulation Coils and Transformers, Ornaments, Paintings, Paper, Protect Printed Circuit Boards, Protective Coating on Metal +60°C Aerosol Acrylic Resin >80kV/mm 200 ml PLASTIK 70 -40°C
RS Stock No. 131-6172
Mfr. Part No.77509
BrandCRC
€34.80
Each
units
Copper Electronic Prototypes, Measuring Instruments and Maintenance Equipment, Office Equipment +95°C Aerosol Thermoplastic Resin - 200 ml EMI 35 -40°C
RS Stock No. 182-6347
Mfr. Part No.32915
BrandCRC
€34.27
Each
units
- - - Aerosol - ≥80 kV 400 ml Varnish E 200 -
RS Stock No. 131-6288
Mfr. Part No.32077
BrandCRC
€142.89
Each
units
Transparent Aeronautics, Aerospace, Automotive Electricity, Electronic Materials, Marine, Telecommunications +125°C Can Acrylic Resin >85kV/mm 5 L PLASTIK 70 SUPER -40°C
RS Stock No. 131-6289
Mfr. Part No.32169
BrandCRC
€83.08
Each
units
Colourless PCBs +60°C - Acrylic Resin >80kV/mm 5 L THINNER 70 -40°C
RS Stock No. 131-6174
Mfr. Part No.76009
BrandCRC
€17.23
Each
units
Black PCBs +300°C Aerosol Graphite - 200 ml GRAPHIT 33 +250°C
RS Stock No. 131-6287
Mfr. Part No.32046
BrandCRC
€20.98
Each
units
Transparent Aeronautics, Aerospace, Automotive Electricity, Electronic Materials, Marine, Telecommunications +125°C Aerosol Acrylic Resin >85kV/mm 400 ml - -40°C
RS Stock No. 131-6184
Mfr. Part No.75009
BrandCRC
€10.11
Each
units
Transparent PCBs +120°C Aerosol Urethan 71 >40kV/mm 200 ml URETHAN 71 -40°C
RS Stock No. 131-6355
Mfr. Part No.32670
BrandCRC
€11.26
Each
units
Red Armature Coils, Boxes, Bus Bars, Commutator Ends, Controls, Electric Motor Windings, Housings, Solenoids, Terminals, Tools, Transformer Connectors +120°C Aerosol Urethane 40kV/mm 250 ml - -40°C