Being more manageable Gel would certainly preferable for use with acrylic baths or anywhere where liquid acetone might attack any adjacent plastic surfaces.
Otherwise (apart from its ability to eat/etch various plastics) contrary to what tabby claims actetone is fairly benign in use and is the best way of cleaning uncured resin from tools and hands when doing GRP layup - providing the latter is followed up with soap and water. And again obviously only a glue sniffer would deliberately want to breathe in the fumes or use it in a confined space.
In which case it probably only serves as a sealant and maybe no solvent will be needed. To avoid undue stressing it might be an idea to try and twist it off, if you can get a grip, rather then lever it up.