I have experimented, with this, faux urushi.
All I can say that it doesn't worth it, the time spent, the mess, the cost, ( yeah I lost money ) the coating
around the threads doesn't hold. And there's the problem with generic indian eyedroppers : ink blurp, no good quality
nib available other than the german ones. ( Although ambitious nibs are great if you like broad & medium line )
If you like the red like me, ( the solution wasn't available back then ) but indian pen makers ( Ranga, Fosfor pen)
have red ebonite, you can order this kind of pen with red ebonite, and you'll have 95 percent of this finish
with much more durability.
This project was to make an alternative version of namiki yukari royale.
I ordered mine from fosforpen with a piston filler, and will have a platinum 3776 nib on it.
Good luck with your project.
https://fr.aliexpres...rchweb201603_PS : You can buy from this link Kaco master in red