Ok, it's solved.
I used 100gr of powdered bark, 100 gr of NaOH, 1L of water, shaked the jar, let it rest for an hour and added 100ml warm Naptha, then i got the emulsion, so i added 40gr of NAoH and 200ml of water, after 10 minutes it was sepperated again.
My yield is going to be bigger then my previous one using this method, it's a combination of 2 different teks, but i think it's a good way to go, after 2 hours theres allready crystals sticking to the sides of my jars, white sticky crystals, i can't wait for tomorrow!
Also, in one jar there has formed a small yellow spot, i don't know how that got there, it was pure naptha...
I'm glad it's solved.