If I did that, then Vulcanus would become impossible without imports: since this mod removes the normal way of getting petroleum products on Vulcanus (pre-Liquefaction, anyways), the SLW Petrochem stuff is essential to be able to actually build a rocket. (I also don't know if you'd get enough water from sulfuric acid alone to run your Foundries at a reasonable pace, but it technically doesn't stop you.)
If there's anything specific you think needs to change about SLW Petrochem, though, I'm open to feedback.
