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Plumbers putty sink drain how to#
Some people swear by one or the other, while others use a combination of both products depending on the. How to use Stain-Free (for stainless steel) Plumbers Putty to seal the kitchen sink drain assembly.

In general, plumbers putty is used for drain projects that entail a lot of threading and sealing, while silicone is better suited for non-threaded areas that need to be sealed up watertight. The net effect is that the putty just needs to be sandwiched between the flange and the sink to prevent water from leaking, either from an (intentionally) stopped sink into the overflow (bathroom) and thus down the drain, or from around the flange into the cabinet below when the flange acts as a reducer or on sinks without overflows (kitchen). It depends on personal preferences and opinions. Honestly, while the "theory" isn't bad, in practice it simply requires that you use enough putty to make a good seal. This putty stays pliable ensuring a gas proof, odor. See this diagram (tight fitting on top, loose fitting on bottom, "risk" for voids/incomplete seal in red): Use Black Swans Stainless Plumbers Putty to set toilet bowls, fixtures, faucets, strainers, sink frames. It doesnt require a ton of skill to remove plumber putty whenever you want. On a tighter fitting, placing the putty on the flange will seal the areas closer to the center leaving less room for voids. Youll simply put some pressure on a plumbing joint to break up the hardened putty. Plumbers putty is an excellent waterproofing sealant for bathtubs, faucets, sinks, and flanges.

Incorrect use of sealant may lead to problems with your new sink drain. It’s a bit redundant as you’re adding sealant to something that already needs to be sealed. Make sure to use enough plumbers putty when installing the sink drain. However, if you are assembling a new sink drain assembly, it really doesn’t make sense, especially if it has its own proper rubber gasket. On a loose fitting (fitting has play inside the hole), placing the putty on the sink will create a better seal on the area actually making contact. Technically you can use a plumber’s putty on a rubber gasket (as long as it is approved for use on rubber). The problem with that is that it causes leaks. They just slide into their place fairly loosely. When you’re installing a new sink faucet or replacing the drain to match a fresh pipe setup, you’ll notice that those parts aren’t threaded. So make sure everything is clean before you apply the putty. Plumber’s putty will sit between the drain flange and the surface on your vanity top. There is no "right way", but the "theory" is: Plumber’s putty is used mostly for drain and fixture attachments. Here’s a quick demo of how I used plumber’s putty when installing a drain into a vanity top.
