MG Chemicals 841AR-P Nickel Conductive Pen, 7.5g

Does work but as others have said, it's a white to administer due to stupid ball heading tip. Only works on a flat surface you won't get it on soldiering joints for fixing circuit boards only

Bought this to repair a trace on a flexible keyboard membrane. It does not flow from the nib of the pen. Not good at all. When some comes out it is all lumpy as iff dried out in pen. Would not waste money again on this. I was surprised as made in Canada, so expecting better product than usual made in china rubbish.

Works as stated seems ok Don't know how long lasting

Bought this 5 month ago and finally went to use it and nothing comes out. I've sqeezed with the nib pushed against a suface as hard as I can. It was the first time I tried it. Very disappointed as its money wasted. The shelf life should easily be a year from point of sale.

expected this to be conductive like the description said. But it's not. It has resistance. So not suitable for what I needed, repairing broken circuit traces. This is similar to the carbon in a solution products you can buy at car shops. Not recommended. But it does dry quick.

The first pen that arrived had mechanical problems that made it useless. I am giving a 5 star rating because of MG Chemicals excellent customer service. On my complaint, they sent me another pen forthwith. I used it to draw a missing trace on a PCB. It won't be as pretty as a manufactured trace but it will do the job. It can be a challenge to get the ink to flow but eventually it will. My PCB is saved thanks to MG Chemicals.

Very useful. It is just like a correction pen. But when I used it, soon the tip got blocked and no more ink was flowing. So I had to cut open the body and use a small stick to scoop the ink and paint. However, ink is good, dries fast, sticks well on plastic surface. I ordered it to repair keypad of an old spectrometer. We saved around 1-2,00,000 rupees.

Used it to successfully repair several ZX81 ribbon cables. The dispenser tip may be fine for the silver and carbon versions of this product, but the silver version it doesn't work very well, hard to control how much is dispensed. So....after shaking vigorously, just remove the cap by turning it CLOCKWISE (backwards from the normal unscrewing action), then use a toothpick to get whatever amount you need, and dab it onto whatever you're repairing. Don't leave the cap off long, as it can dry out.

I bought this to repair a broken lead on a flex cable. For that purpose it worked well with a few caveats. 1. Applying this is tough. The pen releases the paint when the metal tip is depressed. It's very difficult to control the flow rate and often you get more 'paint' than you want of need. In practice it's difficult to apply small, thin lines unless you use masking of some type. 2. If you need to build up areas (two of more coats) for coverage the applicator tends to scrape off previously applied paint. Despite application issues it does work well and adheres well to substrates. Good in a pinch. It also smells terrible so use in a wet ventilated area and I'd avoid getting it on your skin just for good measure.

Not Working, conductive ink is dry/solid when delivered