help needed please

[brummiematt]

hi there
            i have just brought some juice concentrate and shaker bottles from vape munkie, got 60ml of concentrate and two 10ml bottles of 18nic 100vg.
so if i add the two shaker bottles to the 60ml of juice i would get 60/40 with a nicotine strength of 6 

or do i need to add some nicotine pg which i do have

[Postmodern Smoking]

If you have 60ml of 0 nic (shortfill e-liquid) and add 1 X 10ml of 18mg/ml nic you end up with 70ml of 2.6mg/ml e-liquid
If you have 60ml of 0 nic (shortfill e-liquid) and add 2 X 10ml of 18mg/ml nic you end up with 80ml of 4.5mg/ml e-liquid
If you have 60ml of 0 nic (shortfill e-liquid) and add 3 X 10ml of 18mg/ml nic you end up with 90ml of 6mg/ml e-liquid

Re. the PG/VG ratio we need to know what ratio the shortfill eliquid is?
Also you say that you have some nicotine pg .... what strength is this?



[ETA]
Having looked at their website, I have the feeling that the 60ml bottle may only be filled with only 50ml, it's not clear though*. If I'm right then:

If you have 50ml of 0 nic (shortfill e-liquid) and add 1 X 10ml of 18mg/ml nic you end up with 60ml of 3mg/ml e-liquid
If you have 50ml of 0 nic (shortfill e-liquid) and add 2 X 10ml of 18mg/ml nic you end up with 70ml of 5.1mg/ml e-liquid
If you have 50ml of 0 nic (shortfill e-liquid) and add 3 X 10ml of 18mg/ml nic you end up with 80ml of 6.8mg/ml e-liquid


* (I have emailed them to confirm)

[Postmodern Smoking]

Vapemunki have promptly replied to my email   , confirming that their shortfill shaker bottles are filled with 50ml, so the second part of my reply above applies.

[brummiematt]

thank you so much

[Postmodern Smoking]

If you are determined to make precisely 6mg/ml strength then you would need 25ml of 18mg/ml nic (or alternatively 4.55ml of 72mg/ml nic)