Board repair with pom. conductive marker/glue on plastic?

Question

Iron

I fell into the hands of a keyboard from a well-known company, a complex curved shape. 13 keys not working. An autopsy showed that 10 track fragments with a total length of 90-110 mm had rotted. Tracks on flexible plastic. Drawing such a volume of tracks with contactol glue with a toothpick made me somehow sad. So the question is: who solved the problem? What can you say about the conductive marker? Convenient or not? What other repair options are there?
Thanks in advance for your replies.
Upd: plastic is flexible, but it does not bend during operation. Flexibility is needed only because the laying profile in the body has a convex shape.
I have already repaired similar things in the way I described with glue, but there were less damage, I thought that there should be a way out, except for the special. service center.

Answer 1

I restored something like this: www.radetali.ru/catalog/product/marker-tokoprovody... , of course, there will be little flexibility, but if you apply a thin layer and do not bend much, then it will work.
Usually it is useless to solder, the tracks are made of aluminum.
And with a marker, of course, it is easier, but it also requires perseverance, you have to choose between the time spent and the special service Vitaly Pukhov .

Answer 2

Soldering?

Answer 3

I think it needs to be sent to a special service center . given that the board is flexible, all adhesive, etc. conductive markers will not help here, because. from constant bending, they will quickly fail and the cost of markers can turn out to be more than the cost of a new keyboard.

Answer 4

I will only assume that you can use a regular pencil. I know that in some cases it was used to connect contacts on printed circuit boards.

Answer 5

And with what fright did you decide that preg_split should be used here?
Use preg_match_all, regular expression - /что-то\d+/.