You dorks go ahead with your petroleum based products.
There is nothing in the ceramic world that has that in it. Why the heck would you think it's ok?? Go ahead and use Quaker State 10w30 for your build up liquid while your at it.
Everyone here in Richmond VA has been using KY Jelly and other Glycerin cooking products for decades. Been taught in the Dental Lab schools as well.
Same fokkn thing as super thick glaze liquid. Also medical grade for internal use is kinda a plus with the KY brand. You can also use the crap Doctors smear all over a pregnant ladies belly for ultra sound.
I have always been told man-made fibers (carpet made from petroleum) and other petroleum products are a serious no-no with any ceramic stuff. Even Natural olis such as vegetable oils are not OK.
Why do you think we are always paranoid about french-fry grease on the lab bench, or anything with oil?
Chapstick?? Who made that up? I would NOT do that.
Scott