Liquorice cracking tank/ can't find list on known culprits

[a1laserboy]

Been using my kayfun for a couple of weeks now with the middle plastic tank bit [edit: before that, i only ever used a full ss nautilus], I use only Alba's Black Liquorice flavour, hadn't noticed  any cracks until I thought I'd try to change my recipe from 18% nic (vg), 18% flavour and the rest vg from boots. Decided to try to replace the VG dilutent to PG and suddenly I saw 2 cracks appearing.

Is Liquorice a known tank cracker? I'll be buggered if i can find a list anywhere   Is it possible that the change to pg could have showed up the problem, or is it just a coincidence? 

Thanks

[Perpetua]

It's a sticky here Laserboy . . .

 allaboute-cigarettes.proboards.com/thread/13481/eliquids-flavourings-cause-issues-tanks

I haven't checked to see if it's on there . . . but aniseed/absinthe type flavours are known crackers, it's not likely to be the PG.

[a1laserboy]

Thanks Perpetua, I did wonder if the fact that it's now mainly pg, it somehow allowed a faster reaction. I'll get a new tank and see if it happens again - i love seeing how much juice i have left, and i really don't want to change my flavour

[Perpetua]

YW . . . but it won't be the PG Laserboy, so I'd get a couple of tanks as the next one will crack as well.

[Super-Shiny]

Could get one of these for all those juice/tank breakers: www.vapeescape.co.uk/Vaping-Spares/Tanks--Accessories/Kanger-Protank.html