Don't tell the pot growers that Coleman fuel is Naphta, they may like to use it for something. Not that they don't know yet and complain about the price.
Yes to the Naphta, you can also buy that at autobody supply shops, used as a surface prep to remove greases,waxes & sillycones. Rustoleum makes some and to my nose, sure smells like the old Naphta we used so much of back then when we could still buy it by its proper name.
Not buy it rebadged as Coleman Fuel or surface prep for what I think is too much money. But a little goes a long way and sure safe on just about any surfaces.