As a licence master plumber i use plumbers putty all the time to seal drains in sinks and baths.
Installing bathroom sink drain with plumbers putty.
When disconnected lift the faucet fixture from the top of the sink.
Apply a generous bead of plumber s putty to the underside of the flange on the sink drain ring.
Think of it as more high end play dough.
The putty is mostly used at the base of faucets or other fixtures around the bathroom before setting them onto the sink.
Apply plumber s putty.
And they surely use plumber s putty.
The best kind of putty is easy to roll and very pliable.
By cleaning the area then warming up the putty by rolling it in your hands and creating a snake like roll and pressing it into place around the drain.
Clean the surface around the holes with a cleaner appropriate for your sink type.
If you do not have plumber s putty or cannot use it on your type of sink then you can use silicone caulk.
It is commonly used when installing bathroom sink drains and provides a leak proof seal that can.
Plumbers putty is most often used to put together sinks and seal them to prevent water leaks.
Be sure the the sink is spotlessly clean and smooth before installation.
Plumber s putty is a soft moldable sealant that is formulated for use in plumbing applications.
To do this you must roll the putty between the palms of your hands until the putty becomes a long rope.
When you are installing a sink drain and decide to use plumber s putty you must wrap the putty around the sink s drain opening before you install the drain body.
You can also use it on basket strainers and pop up drains around the house.
Scrape remaining sealant remnants from the sink surface.
When you install the drain gently firmly and keeping drain plumb vertical and perpendicular to the sink press the drain down to start the putty squish and form a seal then tighten the nut.
Unhook the lift rod for the drain stopper.
Use a putty knife if needed to assist prying the old faucet from the old sealant or gasket.