I know this is an incorrect heading, but does anyone know how to repair a split/crack in my stainless steel sink?

cassie, March 2008

How can someone get a hole in a stainless steel sink? I find that a ridiculous repair fix online solution. A weld crack in a sink does happen with low cost sinks and welding is the best choice on a thin gauge sink and it might not be weldable, Epoxing a corner crack will result in a failed joint at some point in time.

Ken, April 2021

How to Fix a Hole in a Stainless Steel Sink
By C.L. Rease, eHow Contributor
When you have a hole in a stainless steel sink, welding will permanently repair the hole. The problem with welding is the cost of the equipment and the training required to use the equipment. These two issues generally will force you to look for another option--and there is another option: epoxy formulated with stainless steel that does not corrode and bonds readily to the surface of the stainless steel sink with minimal preparation. This creates a near permanent repair to your stainless steel sink.

Difficulty: Moderately Easy
Instructions
things you'll need:
Small block of wood
Wooden or rubber mallet
200-grit sandpaper
Spray bottle filled with a 50/50 mixture of ammonia and water
Clean rags
FDA approved stainless steel epoxy

1 Place the small wooden block inside of the stainless steel sink and slide the wooden block over the hole you need to repair.
2 Apply pressure on the small wooden block with one hand and hit the hole from the underside of the stainless steel sink with the wooden or rubber mallet to close the size of the hole. The smaller you can collapse the hole, the better the final repair.
3 Sand the underside of the sink where the hole is located to give the epoxy a good bonding surface.
4 Spray the 50/50 mixture onto the underside of the stainless steel sink and wipe the area with a clean rag to remove impurities and sanding dust from the underside surface.
5 Mix a portion of epoxy to cover the hole. Make sure that you mix the epoxy as recommended on the packaging.
6 Place the epoxy over the hole, on the underside of the stainless steel sink, and work the epoxy onto the surface of the sink by pushing it to the sink's surface with your thumbs. Make sure that all air has been removed from the epoxy.
7 Inspect the inside of the stainless steel sink to ensure that no epoxy is emitting from the hole. If you see epoxy, push it back through the hole to create a smooth surface inside of the sink.
8 Allow the epoxy to cure for the time specified on the packaging before using the repaired stainless steel sink.

I copied this from another website, hope it helps

AC, April 2011

If function is more important than looks, the Rectorseal EP 400 epoxy putty stick available in the plumbing section of Home Depot (or online) might work for you. Read caution statements and follow directions--I used it to repair a crack on the edge of a stainless steel pool filter tank top that was causing a break in the vacuum seal. So far (24 hours later, with the pump running constantly at about 20 psi) it seems to be holding. But it is dark and not shiny--so I was careful to shape the patch into a neat circular shape, and flatten it smooth before it dried hard. It's probably too late for whoever asked here, but maybe someone else will find this useful.

classy_chic, May 2010