PG,VG ml to grams

chkontog · June 18, 2021, 4:00pm

Hi,
how many grams are 1 ml of PG or VG?

delltrapp · June 18, 2021, 4:25pm

VG is about 1.04g /ml
PG is about 1.012 I think?

David5362 · June 18, 2021, 5:01pm

The Specific Gravity of USP VG is 1.26g per ml
The Specific Gravity Propylene Glycol is 1.008g per ml

Bad_Influence · June 18, 2021, 5:03pm

PG 1.036
VG 1.261
These seem to be the values in the recipe calculator if I extracted them correctly.

David5362 · June 18, 2021, 5:07pm

Your figures are correct, glycol on mine is different by different sources

Sprkslfly · June 18, 2021, 11:05pm

This is why Lars allowed for the ability to change the numbers.

The hard part is finding the numbers for what we use (individually). On top of which, you have to remember to change the numbers (in the calculator) every time you (or the vendor you buy from) change suppliers.

You can either accept the overall ‘generally accepted’ numbers (and not stress over the minutia), or settle for only buying from a reliable source that provides the necessary documentation to get the numbers from (and perhaps end up with an inferior quality of VG [for example], but have the numbers to satisfy your needs).