A substance that, once applied to any caulk, softens it to the consistency of butter in about 4 hours. Comes in a squirt bottle, and is slightly thinner than common glue.
A cool tool is anything useful that is superior to comparable items. If you think this tool is inferior suggest a better one. You are welcome to insult a tool, but comments containing insults to individual people will be deleted. Corrections of fact are always welcomed, if stated politely. Recommendations of better tools are dearly wanted and may be elevated to the front page.