On Fri, 28 Jul 2017 08:00:07 -0700 (PDT), trader_4
wrote:

Another mistake. Plumber's putty is exactly what you want there. It's
thick, pliable and fills the gap, giving the drain piece something to
bed down into. It also comes out easily as opposed to silicone.
BTW, you see silicon in caulking tubes instead of silicone much?

One lesson I learned the hard way, plumber's putty should never be
used when it will be in contact with plastic. For example, plastic
drain tail piece are becoming quite common and, the traditional putty
will interact with and degrade that material.