How do you repair a PCB crack or open area of the solder resist on a PCB?
This answer assumes the crack does not impact surface or inner-layer traces. CircuitWorks Overcoat Epoxy provides a rugged repairs that can actually reinforce PCB areas with more structural cracks.
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How do you repair a damaged pad on a PCB?
Standard 2-part epoxy can contaminate the surface of the connector, creating an insolative barrier. 2-part conductive epoxy is a great solution for making repairing damaged pads. This type of epoxy contains conductive material, so when cured,...
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How do you repair breaks in EMI or RF shielding?
CircuitWorks Conductive Paint is a single component, silver-filled polymer that dries in minutes at room temperature, making it an ideal solution for patching EMI/RFI shielding. The kit comes with brushes, swabs, and a plastic pick to repair...
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How do you repair a broken trace on a PCB?
A common method of repairing a broken trace is to solder on a jumper, which is basically a wire bypass around the broken trace. This can be time-consuming and visually unappealing. Chemtronics offers CircuitWorks® Conductive Pens, which contain...
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How do I patch the conformal coating after a PCB repair?
Chemtronics offers CircuitWorks Overcoat Pens in a variety of colors to match the PCB resist. Overcoat pens are basically acrylic conformal coating in convenient packaging, and the clear version can be used to coat small areas. Simply press...
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How do you remove conformal coating when repairing or reworking a PCB?
Chemtronics offers the CircuitWorks® Conformal Coating Remover Pen that allows you to remove a tight area of coating around a repair area without affecting the rest of the PCB. You first saturate the tip by tapping it lightly on a surface,...
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How do you connect a temperature sensitive component without high temperature soldering?
2-part conductive epoxy is a great solution for making solderless electronic connections. This type of epoxy contains conductive material, so when cured, it forms a very strong and highly conductive bond, similar to a solder joint. Chemtronics...
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Can I add my own flux to solder wick?
In a production or repair environment where the flux is specified and can’t be changed, or when an aqueous flux is needed, you can add your own flux to this type of braid. Unfluxed wick will not remove solder unless flux is added. Different...
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Why is solder mask / resist / overcoat green?
Printed circuit boards (PCB) come in a variety of colors, including green, blue, red, brown, and even purple. The most common is green, but that can vary by application, industry, and the age of the PCB. Fashions change over time, and so do...
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Essential Guide to Sterile Sampling Swabs
Note: This paper is intended as an overview on the topic of sampling swabs and not as an authoritative how-to guide. Consult CDC and other similar sources for specific guidelines. Per CDC guidelines, “All testing for SARS-CoV-2 should...
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