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. 714-462
BrandRS PRO
HK$102.46
Each
units
200 ml Aerosol PCBs Acrylic Resin Transparent +130°C -55°C -
RS Stock No. 101-6343
Mfr. Part No.DCA200H
HK$156.54
Each
units
200 ml Aerosol PCBs Silicone Resin Transparent +200°C -70°C DCA
RS Stock No. 831-141
BrandRS PRO
HK$98.94
Each
units
200 ml Aerosol PCBs Silicone Resin Red +200°C -70°C -
RS Stock No. 768-2312
Mfr. Part No.PUC400
HK$133.36
Each
units
400 ml Aerosol Electronics PUR Transparent Amber +130°C -55°C PUC
RS Stock No. 918-5043
Mfr. Part No.4223F-1L
HK$323.17
Each
units
1 L Can Electrical, Electronic Components Urethane Transparent Amber +155°C -40°C 4223F
RS Stock No. 918-5030
Mfr. Part No.419D-1L
HK$292.09
Each
units
1 L Can Aerospace, Automobile, Aviation, Communication, Consumer Electronics Industries, Electrical, Electronic Components, Industrial, Instrumentation, Marine Acrylic Clear +125°C -65°C 419D
RS Stock No. 918-5052
Mfr. Part No.4352-1L
HK$156.31
Each
units
1 L Can Electronics Acrylic, Alkyd, Cellulose Acetate Butyrate, Epoxy, Nitrocellulose, Polyester Resin Clear - - 4352 THINNER 2
RS Stock No. 918-5056
Mfr. Part No.4354-1L
HK$156.31
Each
units
1 L Can Electronics Acrylic, Urethane Clear - - 4354 THINNER 4
RS Stock No. 918-9121
Mfr. Part No.WBP05L
HK$1,929.94
Each
units
5 L - Dipping, Electronic Circuit, Spraying - White +125°C -60°C WBP
RS Stock No. 918-5034
Mfr. Part No.422B-1L
HK$537.94
Each
units
1 L Can PCBs Silicone Clear +200°C -40°C 422B
RS Stock No. 495-240
Mfr. Part No.CW3300G
HK$242.23
Each
units
4.9 g Pen PCBs Acrylic Green +125°C -55°C CW3300
RS Stock No. 918-5040
Mfr. Part No.435-1L
HK$100.15
Each
units
1 L Can Conformal Coating, Spray For EMI/RFI Shielding - Clear - - 435 THINNER
RS Stock No. 665-4836
Mfr. Part No.CW3300B
BrandChemtonics
HK$153.72
Each
units
4.9 g Pen Electronics, PCBs Acrylic Resin Blue +125°C -55°C CW3300
RS Stock No. 918-5059
Mfr. Part No.4351-1L
HK$140.68
Each
units
1 L Can - - Clear - - 4351 THINNER
RS Stock No. 494-714
BrandRS PRO
HK$126.36
Each
units
200 ml Aerosol PCBs Silicone Resin Transparent +200°C -70°C -
RS Stock No. 152-6883
Mfr. Part No.ERDCEO.75L
HK$822.81
Each
units
750 ml Can Protect Printed Circuit Boards Silicone Clear +200°C -70°C DCE SCC3 Elastomer Gel
RS Stock No. 146-2871
Mfr. Part No.419D-340G
HK$184.13
Each
units
410 ml Aerosol Automobile, Aviation, Cell Phones & Computer Tablets Components, Electric Generators, LED Boards, Motors, PCBs, Relays, Transformers Acrylic Clear +125°C -65°C 419D
RS Stock No. 321-7324
Mfr. Part No.APL15ML
HK$35.68
Each
units
15 ml Can PCBs Acrylic Resin Transparent +125°C -55°C APL
RS Stock No. 146-2872
Mfr. Part No.4223F-312G
HK$162.94
Each
units
430 ml Aerosol Automobile, Electric Generators, Electrical Connectors, Electronic Components in Corrosive Environments:Farming, Fire Alarms Components, LED Boards, Marine, Mining, Motors, Oil Exploration, PCBs, Porcelains, Relays, Sensors, Smelting, Transformers PUR Clear +145°C -40°C 4223F
RS Stock No. 186-0602
Mfr. Part No.CTSR-12E
HK$244.40
Each
units
400 ml Aerosol - Silicone - +200°C -65°C Konform
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