Can I use caulk instead of plumbers putty?
Matthew Perez
Updated on June 01, 2026
You can use silicone caulk or plumber's putty to seal sink drains. Plumber's putty may crack and cause leaks as the clay dries out with time. But it's the preferred choice of sealant if you'll be adjusting or removing the drain.
Can you use caulk to seal a sink drain?
Both plumber's putty and silicone caulk provide a watertight seal for a sink drain. You must seal the area between a sink's drain body and the actual sink surface. Otherwise water will leak out between the two and begin dripping under the sink.Is caulk same as plumbers putty?
Plumbers use it because it remains soft for a long time and maintains a watertight seal, but unlike silicone and other types of caulk, plumber's putty is not an adhesive, so a fixture or drain part sealed with putty remains easy to remove if you ever need to replace it.What to use if no plumbers putty?
Instead of Plumbers Putty, you can use epoxy putty or Teflon tape.Should I use silicone or plumbers putty for shower drain?
Using plumber's putty works best for it creates a waterproof seal when used on wet surfaces. In case you find it challenging to reach the underside area of the tub drainage pipe, then your best option will be silicone caulking. Use the caulk to seal the exposed drain area.“silicone” INSTEAD of “plumbers putty” on kitchen drain basket
Can you substitute silicone for plumbers putty?
Can I Use Silicone Instead of Plumbers Putty? Silicone offers a wider range of uses than plumber's putty and some advanced benefits. In most situations where you would use a plumber's putty, you could also use silicone as a replacement.Should you caulk around shower drain?
Caulk around a shower drain keeps the drain working properly. It stops water from leaking beyond the drain and keeps your shower free of mold and mildew. This project is easy to complete and you only need a few supplies such as screwdrivers, caulk, an application gun, and a utility knife.Can you use silicone on sink drain?
Make sure the depressed area around the sink drain is also clear of any built-up material. Afterwards, apply a bead of silicone caulk around the drain hole in the sink. Then, apply a second bead along the underside of the drain flange.When should you not use plumbers putty?
4. Sealing leaks on PVC pipes. If you're trying to seal a leak in a PVC pipe, don't use plumbers putty. While it might seem like it would work, over time the putty will degrade and allow the leak to return.How do you seal a sink plug hole?
Apply a bead of silicone sealant around the opening of the plug hole to create a watertight seal inside your basin. Fit the waste into the hole, making sure any slots are pointed towards the overflow (if your waste and basin has these). Apply a second bead of silicone around the thread before adding a washer.Can you caulk drain pipes?
Cut the tip off a tube of caulk with a utility knife.Carefully slice the tip off to make a hole that you can squeeze the caulk out of. Make sure to use silicone bathroom/kitchen/plumbing caulk for your drain to ensure it is waterproof. You can get a tube of silicone plumbing caulk at any home improvement store.
What is the best sealant for leaking pipes?
The following list looks at the best pipe thread sealant for a number of applications.
- BEST OVERALL: Gasoila – SS16 Soft-Set Pipe Thread Sealant with PTFE.
- BEST BANG FOR THE BUCK: Dixon Valve TTB75 PTFE Industrial Sealant Tape.
- BEST FOR WATER: Oatey 31230 Pipe Joint Compound with PTFE with Brush.