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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Description Price Colour Application Maximum Operating Temperature Package Type Material Dielectric Strength Package Size Trade Name Minimum Operating Temperature
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. 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
£118.87
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
£37.52
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
£40.20
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. 124-7696
Mfr. Part No.841WB-850ml
£259.15
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