What do plumbers use to seal PVC pipe?

Author: Kailee Larkin  |  Last update: Saturday, January 10, 2026

There are three types of PVC pipe sealant: cement and primer, thread tape, and joint compound.

What do plumbers use to glue PVC pipes together?

'PVC glue' is also referred to as PVC cement or solvent cement, the official term for the product. There are solvent cements for a wide range of pipe materials, including CPVC, but the substance will only create an effective bond when used on the matching material type.

What do plumbers use instead of Teflon tape?

The better substitute for plumber's tape (thread seal tape) is “pipe dope,” also known as pipe thread sealant or pipe joint compound. Thread paste is specifically designed to seal the threads of a pipe and is known to be better for maintaining a permanent steal than Teflon plumber's tape.

What can I put on PVC pipe to stop leaking?

Different Ways to Fix a Leaky PVC Pipe
  1. Fiberglass resin tape: Fiberglass resin tape works well for temporary repairs intended to slow damage. ...
  2. Epoxy putty: Epoxy putty essentially plugs the hole, crack or leak in the pipe to create a new surface. ...
  3. Silicone repair tape: Silicone repair tape works well for small repairs.

What sealant do plumbers use?

Plumber's putty is best for indoor, removable seals like sink drains, while silicone is ideal for permanent, watertight applications in high-moisture or outdoor environments.

How To Prime & Glue PVC “Correctly”

Is it better to use plumbers putty or silicone?

Plumbers putty is very easy to manipulate into tight areas, and it's also easier to remove. That makes silicone putty better for waterproofing, even if it's more difficult to work with. As mentioned, plumbers putty doesn't dry in the way you might expect so don't play around with it or attempt to force it to dry.

What is the best waterproof sealant for plumbing?

For most general purposes, look for a universal sealant, such as Loctite Clear Silicone waterproof sealant.

What is the best product to seal PVC pipe?

If the goal is to seal around a PVC pipe at plumbing penetrations in kitchens or bathrooms, reach for a PVC compatible silicone sealant that provides a watertight seal that is resistant to mold and mildew. Silicone sealants come in a range of different colors such as white, gray, black and clear.

Will plumbers putty stop a leak on PVC pipe?

Plumber's putty should not be used on plastics (PVC or ABS) because it will affect the integrity of the material and lead to product failure.

How to fix a leaky pipe without replacing it?

Yes, compound sticks, also known as repair sticks or epoxy sticks, can effectively and temporarily seal leaky pipes. They are easy to apply – simply wet the pipe and knead the stick until soft, then apply it to the leak area. Most compound sticks harden within 20-30 minutes, providing a temporary watertight seal.

Do plumbers still use PTFE tape?

Applications of Teflon Tape

Plumber's tape is commonly used by professionals in a variety of industries. You can also use it in do-it-yourself projects, which will help you get a professional finish that is attractive and functional. As the name suggests, plumbing projects are the most common applications.

What is the white stuff plumbers use?

Plumber's putty is specifically designed for plumbing applications. It is ideal for setting faucets, sink basket strainers, shower and pop-up drains. It's easy to wipe away after installation and will not be visible from the outside of the plumbing fixture once installed.

What is a substitute for a PTFE seal?

Verdict: On the balance of things, FKM rubber comes out victorious in this round because of its superior strength, flexibility and sealing capabilities. Of course, if nothing else will suffice other than a chemically inert seal then PTFE is a great option. However, FKM offers slightly more flexibility…in every sense!

What do you use to seal two PVC pipes together?

There are three types of PVC pipe sealant: cement and primer, thread tape, and joint compound. All are widely available at local stores. Cement and primer: Cement and primer create a robust and permanent connection.

How to fix a leaking PVC joint without cutting?

Minor leaks at joints can often be repaired using epoxy putty or repair tape without the need for cutting. However, for more severe joint issues, cutting and replacing the section may be unavoidable.

How can I seal a leaking PVC pipe?

There are many ways you can go about fixing a leaky PVC pipe. Four temporary solutions to repair a leaking PVC pipe are to cover it with silicone and rubber repair tape, wrap it with rubber and secure with hose clamp, bond it with repair epoxy, and cover it with fiberglass wrap.

Where not to use plumbers putty?

But you should not use it in places where you need adhesive strength. Plus it is not recommended to use in exposed areas needing a watertight seal. Plumbers putty for years has been the go-to product to use to create watertight seals between surfaces around faucets, sinks, and drains.

What adhesive is used for leaking PVC pipe?

Use Epoxy Putty

Epoxy putty is used to repair leaking or cracking PVC pipe, fitting, and joints by creating a new surface. PVC epoxy comes in two parts.

Should I use plumbers tape on PVC threads?

When PTFE tape is wrapped around PVC male threads, it will add strain. Thicker premium grade tapes will also increase the strain. When you work with threaded plastic fittings, you should use a sealant specifically designed for plastic fittings.

What is the best sealant for leaking pipes?

Use epoxy putty or pipe putty as a temporary fix to a leaky pipe. Pipe putty is designed to harden at room temperature and seal the hole or crack.

What are the best sealants for PVC?

Best Adhesive Sealant for PVC Plastic: ASI 5900 Quick Grab Adhesive. If you are looking for an adhesive sealant for PVC applications, we recommend this product.

What is plumbers mate sealant?

Plumbers Mait 750g is waterproof non setting putty that is ideal for sealing joints in sanitary fittings.

What is plumbers gold?

Plumbers Gold is a new type of sealant and adhesive based on STPA polymer technology Specially formulated for the plumbing professional, Plumbers Gold can be applied to wet surfaces and Will even work underwater, Contains Mould Shield the worlds leading branded anti-bacterial solution integrated into the manufacturing ...

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