Thanks for the correction, Henry.

While I have read about the old "wet slug" tants that do have fluid inside, for more than 15 years I have never (neither professionally nor in my repair hobbies) used any tantalum caps other than the "solid electrolyte" variety, in either dipped or chip form. The big benefit of the "solid" tants is their shelf-life versus fluid-filled canned electrolytic capacitors. I therefore don't see why anyone would want to use a wet tantalum as a replacement cap in a vintage computer.