The best sealant differs for each objective, it’s hard to say which one sealant is best at solving all leaking pipe issues. Here’s a list of 3 types of sealant products that are accessible at most hardware stores. Remember to read the instructions carefully as some products may require more attention to detail. As always use precaution when handling certain products and if necessary resort to a plumber to help protect your pipes from further damage.
In no particular order we recommend the use of epoxy putty, it acts as an adhesive that fills in gaps as it binds, sets and makes anything it adheres to waterproof. Epoxy putty can be used on a wide range of surfaces making it a great sealant for leaky pipes. Once applied the putty hardens and becomes a permanent fixture. Before applying the epoxy putty to a leaking pipe make sure you’ve shut off your water valve before proceeding. Next you’ll want to drain the pipe of any residual water and wipe off any wet surfaces near the location of the leak. Once the pipe is dried completely use sufficient epoxy putty to cover the entire surface around the leak and then some. Read the instructions on how to handle the putty and for how long it must be kneaded before application. Apply the putty to desired area and let harden, once harden turn on your water valve and check for leaks all around the affected pipe.
For a temporary leak fix purchase a pipe repair kit with tape. This is in no way a complete fix but will buy you some time until your pipe is property repaired. These types of kits will allow you to use your pipes for a short amount of time before they start to leak again. Very similar to the epoxy putty, you’ll want to start off by shutting off your water valve and then begin to dry off the affected pipe. Once your surface is completely dried read the instructions that come with the package to activate the fiberglass tape. Tightly wrap the tape around the pipe several times where the leak occurred to insure it is completely sealed. Once you’ve successfully wrapped the tape, don’t forget to check the pipe before returning to normal use.
Lastly we recommend purchasing a Repair patch. It is easy to use and will stop a leak momentarily while your pipe gets repaired. Think of a repair patch as a spare tire, you don’t want to be driving on a spare for more than a week. Similarly repair patches are able to adhere to pipes and create a watertight seal. Like mentioned previously shut off your water valve and wipe off the affected pipes’ surface of any water. Once dried, sand down the pipe so it creates a smooth surface for the patch to adhere to. Once sanded, place the patch over the area where the pipe leaks from and use the clamp it comes with to hold the patch in place. Read over the instructions to see how long the clamp must be in place before removing. Lastly turn on the water valve and check for any leaks.