Electronics Varnishes

Electronics varnishes 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 work?

Electronics varnishes 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 - 20 of 29 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. 199-1480
BrandRS PRO
£7.62
Each
Units
Clear Components, PCBs, Transformers +120°C Can - 60kV/mm 250 ml - -55°C
RS Stock No. 136-8542
BrandRS PRO
£4.22
Each
Units
- Mechanical Parts +125°C Aerosol Polymer 48kV/mm 400 ml - -55°C
RS Stock No. 136-8535
BrandRS PRO
£4.57
Each
Units
Clear - +120°C Aerosol - 42.6kV/mm 400 ml - -40°C
RS Stock No. 136-8533
BrandRS PRO
£4.52
Each
Units
Clear Electrical Circuit Protection +150°C Aerosol Acrylic 45kV/mm 400 ml - -12°C
RS Stock No. 907-4794
Mfr. Part No.31892-AB
BrandAmbersil
£15.54
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
£13.32
Each
Units
Clear - +60°C Aerosol Acrylic Resin >80kV/mm 400 ml PLASTIK 70 -40°C
RS Stock No. 118-1554
Mfr. Part No.CPL200H
£8.88
Each
Units
Colourless PCBs +100°C Aerosol - 45kV/mm 200 ml - -50°C
RS Stock No. 124-7681
Mfr. Part No.842AR-P
£39.28
Each
Units
Grey-Silver Game Controllers, Keyboards, Mixing Boards, PCBs, Remote Controls +120°C Pen Acrylic - 5 ml - -40°C
RS Stock No. 823-2646
Mfr. Part No.74309
BrandCRC
£9.12
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. 124-7676
Mfr. Part No.841AR-P
£14.93
Each
Units
Grey Aerospace, Antennas, Audio Equipment, Cable Boxes, Cellphones, Communication Devices, Consumer Electronics, Controllers, Drones & Other RC Vehicles, Electric Quitars and other Amplified Instruments, Electric Vehicles, Electronic Sporting Equipment, Firewalls, GPS, Laptops, Medical Equipment, Military Equipment, Monitors and Displays, Navigation Systems, Networking Gear, PDA, Receivers, Satellite Dishes and Radar Systems, Scientific Equipment, Sensors, Test Equipment, TV +120°C Pen Nickel - 5 ml - -40°C
RS Stock No. 124-7680
Mfr. Part No.843ER-800ml
£296.05
Each
Units
Brown Aerospace, Aluminium Flanges, Automotive, Engines, Military Equipment, Oil & Gas Sectors +120°C Can Silvered Copper Epoxy - 810 ml - -40°C
RS Stock No. 124-7675
Mfr. Part No.838AR-900ml
£117.11
Each
Units
Black Electric Guitars, Electronic Instruments, Metal Detectors, Picture Tubes, RFI Shielding +120°C Can Acrylic - 850 ml - -40°C
RS Stock No. 124-7677
Mfr. Part No.841AR-340g
£36.78
Each
Units
Grey Aerospace, Antennas, Audio Equipment, Cable Boxes, Cellphones, Communication Devices, Consumer Electronics, Controllers, Drones & Other RC Vehicles, Electric Quitars and other Amplified Instruments, Electric Vehicles, Electronic Sporting Equipment, Firewalls, GPS, Laptops, Medical Equipment, Military Equipment, Monitors and Displays, Navigation Systems, Networking Gear, PDA, Receivers, Satellite Dishes and Radar Systems, Scientific Equipment, Sensors, Test Equipment, TV +120°C Aerosol Nickel - 232 ml - -40°C
RS Stock No. 124-7678
Mfr. Part No.841AR-900ml
£243.42
Each
Units
Grey Aerospace, Antennas, Audio Equipment, Cable Boxes, Cellphones, Communication Devices, Consumer Electronics, Controllers, Drones & Other RC Vehicles, Electric Quitars and other Amplified Instruments, Electric Vehicles, Electronic Sporting Equipment, Firewalls, GPS, Laptops, Medical Equipment, Military Equipment, Monitors and Displays, Navigation Systems, Networking Gear, PDA, Receivers, Satellite Dishes and Radar Systems, Scientific Equipment, Sensors, Test Equipment, TV +120°C Can Nickel - 850 ml - -40°C
RS Stock No. 124-7679
Mfr. Part No.843AR-340g
£39.41
Each
Units
Brown Aerospace, Antennas, Audio Equipment, Cable Boxes, Cellphones, Communication Devices, Consumer Electronics, Controllers, Drones & Other RC Vehicles, Electric Quitars and other Amplified Instruments, Electric Vehicles, Electronic Sporting Equipment, Firewalls, GPS, Laptops, Medical Equipment, Military Equipment, Monitors and Displays, Navigation Systems, Networking Gear, PDA, Receivers, Satellite Dishes and Radar Systems, Scientific Equipment, Sensors, Test Equipment, TV +120°C Aerosol Acrylic - 284 ml - -40°C
RS Stock No. 124-7674
Mfr. Part No.838AR-340g
£35.46
Each
Units
Black Electric Guitars, Electronic Instruments, Metal Detectors, Picture Tubes, RFI Shielding +120°C Aerosol Acrylic - 360 ml - -40°C
RS Stock No. 182-6347
Mfr. Part No.32915
BrandCRC
£26.90
Each
Units
- - - Aerosol - ≥80 kV 400 ml Varnish E 200 -
RS Stock No. 165-5583
Mfr. Part No.ERURC200D
£11.65
Each
Units
- Electrical Circuit Protection +140°C Aerosol Urethane 80kV/mm 200 ml - -40°C
RS Stock No. 131-6184
Mfr. Part No.75009
BrandCRC
£7.93
Each
Units
Transparent PCBs +120°C Aerosol Urethan 71 >40kV/mm 200 ml URETHAN 71 -40°C
RS Stock No. 165-5581
Mfr. Part No.ERAFAG35SL
£13.07
Each
Units
- Electrical Circuit Protection +125°C Syringe Acrylic 45kV/mm 35 ml - -65°C
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