Conformal Coatings

A conformal coating is a thin, protective coating for PCBs and other electronic components from environments that contain moisture and/or chemical contaminants.

The coating can be removed easily with most common solvents.

Why use a Conformal Coating?

A conformal coating conforms to the shape of the board and its components.
•Performance of PCBs can deteriorate because of moisture, sea salt, chemicals and temperature extremes using a conformal coating helps extend their working life.


•Use the coating to protect PCBs to allow for higher voltage gradients and closer track spacing.



How to use Conformal Coatings
•Brushing the components with the coating is suitable for low volume applications and for finishing and repair.


•Spraying on the coating can be done by using an aerosol or dedicated spray booth. These methods are suitable for low and medium volume processing. They are more cost effective, and gives excellent tip coverage to the components.


•Dipping the components into the coating is done for high volume applications but gets everywhere. Masking must be perfect to protect the board and prevent leakage when using this method.



Types of Conformal Coatings
•Silicone coatings give great protection in a wide range of temperatures, have good chemical resistance, flexibility and are resistant to sea salt.


•Acrylic coatings are easy to use and remove, provide fair elasticity, are abrasion resistant and have a high dielectric strength.


•Polyurethane coatings have excellent moisture and chemical resistance properties and are abrasion resistant.


•Epoxy coatings give good humidity resistance, high abrasion and chemical resistance



Where to use Conformal Coatings

Conformal Coatings are used in many different types of applications where high performance and reliability are needed.

These include military, car, marine and green energy to domestic and mobile electronic industries.

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Description Price Package Size Package Type Application Material Colour Maximum Operating Temperature Minimum Operating Temperature Trade Name
RS Stock No. 494-714
BrandRS PRO
£11.13
Each
Units
200 ml Aerosol PCBs Silicone Resin Transparent +200°C -70°C -
RS Stock No. 714-462
BrandRS PRO
£9.89
Each
Units
200 ml Aerosol PCBs Acrylic Resin Transparent +130°C -55°C -
RS Stock No. 831-141
BrandRS PRO
£10.54
Each
Units
200 ml Aerosol PCBs Silicone Resin Red +200°C -70°C -
RS Stock No. 235-521
BrandRS PRO
£119.13
Each
Units
5 L Can PCBs Acrylic Resin Transparent +130°C -55°C -
RS Stock No. 251-3615
BrandRS PRO
£4.062
Each (In a Pack of 5)
Units
12 ml Pen Electronics, Office Equipment - Yellow +100°C -50°C -
RS Stock No. 535-525
Mfr. Part No.FSC15ML
£4.22
Each
Units
15 ml Can Solvent Thinner Silicone Resin Transparent +125°C -50°C FSC
RS Stock No. 101-6343
Mfr. Part No.DCA200H
£12.28
Each
Units
200 ml Aerosol PCBs Silicone Resin Transparent +200°C -70°C DCA
RS Stock No. 557-991
Mfr. Part No.30235-AB
BrandAmbersil
£10.05
Each
Units
400 ml Aerosol Electronics, PCBs Acrylic Resin Transparent +60°C -40°C ACRYLIC
RS Stock No. 321-7324
Mfr. Part No.APL15ML
£3.91
Each
Units
15 ml Can PCBs Acrylic Resin Transparent +125°C -55°C APL
RS Stock No. 290-9476
Mfr. Part No.HPA200HR
£11.06
Each
Units
200 ml Aerosol PCBs Acrylic Resin Transparent +130°C -55°C HPA
RS Stock No. 409-0956
Mfr. Part No.APL400H
£10.90
Each
Units
400 ml Aerosol PCBs Acrylic Resin Transparent +125°C -55°C APL
RS Stock No. 495-240
Mfr. Part No.CW3300G
£21.59
Each
Units
4.9 g Pen PCBs Acrylic Green +125°C -55°C CW3300
RS Stock No. 918-5034
Mfr. Part No.422B-1L
£97.13
Each
Units
1 L Can PCBs Silicone Clear +200°C -40°C 422B
RS Stock No. 848-9098
Mfr. Part No.AFA200
£9.52
Each
Units
200 ml Aerosol Electrical Circuit Protection Acrylic - +125°C -65°C AFA
RS Stock No. 405-159
Mfr. Part No.30799-AH
£9.95
Each
Units
400 ml Aerosol PCBs Acrylic Resin Transparent +60°C -40°C PLASTIK 70
RS Stock No. 155-8156
Mfr. Part No.APL500ML
£13.01
Each
Units
500 ml Tin PCBs Acrylic Resin Transparent +125°C -55°C APL
RS Stock No. 768-2312
Mfr. Part No.PUC400
£12.86
Each
Units
400 ml Aerosol Electronics PUR Transparent Amber +130°C -55°C PUC
RS Stock No. 763-0768
Mfr. Part No.SC3001RP250G
£22.23
Each
Units
250 g - - Silicone Resin Transparent +200°C -60°C SC3001
RS Stock No. 907-5592
Mfr. Part No.DCT05L
£98.49
Each
Units
5 L Can Protect Printed Circuit Boards - Colourless - - DCT
RS Stock No. 428-552
Mfr. Part No.FSC400
£22.35
Each
Units
400 ml Aerosol PCBs Silicone Resin Transparent +125°C -50°C FSC
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