Stealth Ink - Magic Ink!?

Anledningen till min förfrågan är som sagt att Ralf på fuck110 skriver följande:

"the product elbtunnel is selling at the moment is not the original
'magic ink'. it's called 'stealth ink'. the producer of magic ink
quit producing it last year and will not start again to produce it
because it included some chemicals that are not allowed or whatever.
i think that's why it worked that good and was impossible to buff on plastics.

i have a bottle of stealth ink for testing but i must say that it is
not as good as magic ink was. it don't get's that dark and is much
easier to buff on the materials i tested it on. i keep on testing and
if it turns out that it works good i will get it on stock"