Hello everyone I was trying to make a sketch pen from thermochromic inks but could not get m sketch pen to work
I have already tried the obvious method I washed the sketch pen clean then mixed binder and thermochromic ink and filled the sketch pen with ink it did not work then I tried immersing the absorbent material (that holds ink) in the thermochromic + binder solution but nothing worked.
I have already tried the obvious method I washed the sketch pen clean then mixed binder and thermochromic ink and filled the sketch pen with ink it did not work then I tried immersing the absorbent material (that holds ink) in the thermochromic + binder solution but nothing worked.