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 - 20 of 30 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. 199-1480
BrandRS PRO
£8.29
Each
Units
250 ml Can Components, PCBs, Transformers - Clear 60kV/mm +120°C -55°C
RS Stock No. 199-1496
BrandRS PRO
£10.19
Each
Units
500 ml Can PCBs Acrylic Colourless 45kV/mm +130°C -55°C
RS Stock No. 217-3857
BrandRS PRO
£6.04
Each
Units
250 ml Aerosol Glass, Plastic Acrylic White - - -
RS Stock No. 136-8535
BrandRS PRO
£4.97
Each
Units
400 ml Aerosol - - Clear 42.6kV/mm +120°C -40°C
RS Stock No. 136-8533
BrandRS PRO
£4.93
Each
Units
400 ml Aerosol Electrical Circuit Protection Acrylic Clear 45kV/mm +150°C -12°C
RS Stock No. 136-8542
BrandRS PRO
£4.60
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
£15.37
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
£12.39
Each
Units
400 ml Aerosol - Acrylic Resin Clear >80kV/mm +60°C -40°C
RS Stock No. 118-1554
Mfr. Part No.CPL200H
£7.27
Each
Units
200 ml Aerosol PCBs - Colourless 45kV/mm +100°C -50°C
RS Stock No. 124-7681
Mfr. Part No.842AR-P
£34.56
Each
Units
5 ml Pen Game Controllers, Keyboards, Mixing Boards, PCBs, Remote Controls Acrylic Grey-Silver - +120°C -40°C
RS Stock No. 823-2646
Mfr. Part No.74309
BrandCRC
£8.48
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. 124-7676
Mfr. Part No.841AR-P
£14.56
Each
Units
5 ml Pen 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 Nickel Grey - +120°C -40°C
RS Stock No. 124-7680
Mfr. Part No.843ER-800ml
£243.59
Each
Units
810 ml Can Aerospace, Aluminium Flanges, Automotive, Engines, Military Equipment, Oil & Gas Sectors Silvered Copper Epoxy Brown - +120°C -40°C
RS Stock No. 124-7675
Mfr. Part No.838AR-900ml
£85.26
Each
Units
850 ml Can Electric Guitars, Electronic Instruments, Metal Detectors, Picture Tubes, RFI Shielding Acrylic Black - +120°C -40°C
RS Stock No. 124-7677
Mfr. Part No.841AR-340g
£35.85
Each
Units
232 ml Aerosol 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 Nickel Grey - +120°C -40°C
RS Stock No. 124-7678
Mfr. Part No.841AR-900ml
£205.59
Each
Units
850 ml Can 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 Nickel Grey - +120°C -40°C
RS Stock No. 124-7679
Mfr. Part No.843AR-340g
£84.15
Each
Units
284 ml Aerosol 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 Acrylic Brown - +120°C -40°C
RS Stock No. 131-6172
Mfr. Part No.77509
BrandCRC
£25.41
Each
Units
200 ml Aerosol Electronic Prototypes, Measuring Instruments and Maintenance Equipment, Office Equipment Thermoplastic Resin Copper - +95°C -40°C
RS Stock No. 165-5583
Mfr. Part No.ERURC200D
£11.59
Each
Units
200 ml Aerosol Electrical Circuit Protection Urethane - 80kV/mm +140°C -40°C
RS Stock No. 131-6174
Mfr. Part No.76009
BrandCRC
£12.58
Each
Units
200 ml Aerosol PCBs Graphite Black - +300°C +250°C
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