Gentlemen, I have been asked about the ELPAR company. Does anyone have experience with these cables? How is the quality and can you see them after some time on the plaster?
I have put a new installation in my apartment and I am currently at the stage of sealing the furrows. Except that I do it this way, first I put ordinary plaster on the furrows and only then cover it with putty. Of course, before such a procedure, all walls and furrows are dust-free, washed and primed. By the way, I just use plaster to straighten the walls and, unfortunately, some cardboard gypsum boards will be used, because the walls are very crooked here and there (even 2 cm is missing from the vertical). Usually in the middle of the wall height there is the recessed point, as if someone kicked the wall in the middle.
When it comes to the grooving technique, I cut about 2.5 cm with a wall chaser (I recommend using a vacuum cleaner because without it it is terrible to sneeze) and obligatory glasses, gloves (hot dust, especially in reinforced concrete), earphones (high frequencies, damage to hearing), mask ( for the patient, because the steam from the mouth will steam over the glasses if you furrow the ceiling).
The wall chaser alone is not enough and you must have a jackhammer, a large flat screwdriver (for breaking furrows, the deeper it is, the easier it is to break it), a chisel with a hammer for small corrections. In addition, you need to cover the windows because if you hit a metal rod, it can result in sparks that will melt into the glass and black dots will appear from pitting. In my case, the bars in the ceiling were shallow, so I had to break off the jumps over the bars, which was a troublesome issue.
It is worth informing the neighbors, especially if you are furrowing the ceiling, because in my last 2 days there were accusations for application to the cooperative

The jackhammer in particular is annoying.