I have a circuit board that has a section carbonized and I wanted to know if anyone could recommend a good epoxy to repair it. Thanks in advance!
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Recommendations for a good epoxy to repair a circuit board
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If there is a structural problem I would suggest cutting a piece of non-clad PCB board cut from a junker and glue it over the missing area with 5 minute epoxy. But any broken traces you should jump point to point with the appropriate sized insulated solid core wire.
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If possible, I try to fill the hole with epoxy; practically any type will do, **except** metal dust filled, of course.
I like to preheat the board with a heat gun, apply epoxy with a toothpick and also give it a couple blasts of hot air.
The idea is to make it "wet" the surface.
If the hole is too big, use whatever's necessary, such as a toothpick, piece of broken PCB, etc. to give it "body".
I have some glass cloth left from the old days, sometimes I add a little piece of it.
The main problem is not the epoxi or filler but grinding away *all* the carbon thoroughly, then swabbing with some solvent or pure alcohol.Juan Manuel Fahey
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A few years ago I cut my thumb nail off with a machete, leaving a small strip on nail down either side. I wanted a thumb nail while the other grew back and I found a nail repair kit with superglue gel, activator, and tabs of fine glass-fibre fabric. They did the trick, but the leftover pieces are really good for small structural repairs on PCBs when used with 5-minute epoxy (the stuff from £1 shops). Probably $1 shops in the States.
Anyhow, I've since found there are two types of nail repair material - silk and glass-fibre. Use the glass.
And for those who want a song about fibreglass;
Paris Combo - Fibre de Verre - YouTube
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The best two-part syringe applicator epoxies I have found are from PC-Products and Gorilla. (Over the years I have tried practically every other epoxy and those ones seem to work the best.) I like the epoxies that start off colored but go clear when they are mixed up properly. I usually mix it up in a cheap paper plate, often using half of a wooden clothespin for the mixing, although I just got a box of non-sterile tongue depressors since I am running out of clothespins. And get yourself a box of the nitrile gloves to keep that crap off your fingers (not a good idea to play your guitar with epoxy on your fingertips! )
Steve AholaThe Blue Guitar
www.blueguitar.org
Some recordings:
https://soundcloud.com/sssteeve/sets...e-blue-guitar/
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Originally posted by Mick Bailey View PostA few years ago I cut my thumb nail off with a machete, leaving a small strip on nail down either side. I wanted a thumb nail while the other grew back and I found a nail repair kit with superglue gel, activator, and tabs of fine glass-fibre fabric. They did the trick, but the leftover pieces are really good for small structural repairs on PCBs when used with 5-minute epoxy (the stuff from £1 shops). Probably $1 shops in the States.
Anyhow, I've since found there are two types of nail repair material - silk and glass-fibre. Use the glass.
And for those who want a song about fibreglass;
Paris Combo - Fibre de Verre - YouTube
"I took a photo of my ohm meter... It didn't help." Enzo 8/20/22
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