SILICONE a Bathtub Drain or Sink Drain? Or use PUTTY?

If I go with a metal pop up assembly for the bathroom sink instead of plastic would you still use putty or silicone?

I read somewhere that you shouldn't use plumber's putty on plastic or ABS.

Thank you totally agree

As someone that worked construction, you earned a like with "Well that really depends..." haha

Putty isn’t recommended on pvc plastics.

Great video. When you say putting the silicone underneath, do you mean between the gasket and the tub or between the gasket and the drain pipe??

I have a leaky bathtub drain. I took out the drain flange and sure enough, the putty was cracked and the rubber gasket between the shoe and tub was broken. I replaced the gasket with a new 1/8" rubber gasket, then teflon taped the drain flange threads and used plumber's putty for the sealant. This did not work. The drain still leaked. I poured water straight into the shoe to make sure the pvc shoe wasn't the issue. My questions would be 1: should I put silicone in place of putty around the flange (as you advise in your video), and 2: should I put a bead of silicone the top of the shoe then put the rubber gasket on that to hold it in place? The shoe is just slightly off-center, (1/4" or so), so not sure if that is what is causing the poor seal or if it's the putty sealant around the flange. Any advice?

Appreciate the video. Does the silicone product need to state it is waterproof? Any recommendations?

So basically it's best to use plumbers putty for areas that have easy access, and areas that require lots of replacements or maintenance over time correct?

What would cause my drain to Crack? Its happened twice in 2 years

For the bathtub drain, do I need to remove the old silicone first make it nice and clean ?

Does it need to be translucent silicon or can it be the white kind?

Thank you for the video. You mention how putty cracks over time, but for more than one occasion you are using putty, without saying why. Please elaborate. Thanks again...

Why was putty ok for the 2nd and later options?

What brand do u use

If the tub ever rusts you are not going to be able to do any repairs with all that goop you put on there, or switch out the drain in the future!