MG Chemicals 838AR-P Total Ground Carbon Conductive Pen, 4g, Carbon Black

Kann das produkt nicht guten herzens weiterempfehlen. Ist zwar conductive, aber das ist ein gaphit bleistift auch. Auf 1cm strichlänge hat man schon 120k ohm widerstand, bissl weiter gehts in den mega ohm bereich. Der widerstand is so gross, das man nichtmal bei 2mm linie einen ton aus dem multimeter bekommt wenn man auf durchgang testet..kann nur widerstand messen. Mag vielleicht bei nem kratzer auf ner pcb leiterbahn helfen um zu überbrücken..mehr aber auch nicht. Bei dem preis gibt es bessere möglichkeiten ein pcb zu fixen.

I had a few remote controls where most of the keys stopped working due to the carbon wearing off the membrane pads and not making sufficient contact with the PCB. Putting a blob of this carbon compound on the carbon pads of the membrane fixed the problem entirely. A few tips; - wear gloves, this stuff is messy and carcinogenic - shake the pen for 30s - use a sheet of paper to clean the nib - make sure the surface is clean, IPA+cotton bud - leave for 24 hours for conductivity and strength

Carbon trace was very high resistance more than 1K per cm

This stuff is great but it takes a lot longer than you think for it to cure, in my experience it takes about 3 days to work properly. The trace width is a little hard to control as you can see from the picture, but despite appearances this did repair the membrane contacts on the electric piano I was working on and saved £60+ on getting a new board and sending this one to landfill.

Pen worked great for its intended purpose, but when I pulled top off it exploded, the tip had some think glue-like substance and when the top cap came off it pulled the tip out of pen, which leaves a 1.4-inch hole. SO it sprayed the insides all over me. HOW, well the top does take some effort to pull off, which makes a slight jerk when it does come off. I have ruined a shirt and jeans and lost almost all the contents, let alone left spots on my carpet. But what was left worked well. Not sure what the glue-like substance was, very much like rubber cement. The product works, but watch out taking top off.