Leaking Leedal darkroom graduated Measuring container

[gary892]

I have a 4000 ml Leedal Graduated Stainless Steel measure container that has developed a pin hole in the bottom.

What is the best way to repair the leak?

Thanks

Gary

[cowanw]

I have a similar container that was Brazed.

[Fred L]

JB Weld ?

[Bob Salomon]

How did that happen?

[gary892]

How did that happen?

I have no idea how the hold happened, I bought it used.

[Greg]

JB Weld ?

JB Weld sealed our SS darkroom sink's leak for years.

[Willie]

Plumbers Goop will seal as well.

[Harold_4074]

Many stainless steels are susceptible to pitting corrosion (type 316 is specifically formulated to be resistant) which can be caused by any bit of more active metal (usually, iron) contacting it in a wet environment. The chemistry is a bit complicated, but the basic idea is that once the (normally protective) surface oxide is breached, the electrochemical cell propagates corrosion underneath the contamination. Eventually, this can create a pinhole as you describe.

If you are lucky, this was caused by the graduate sitting on something like a steel nail in wet wood for a long time. If you have bits of iron stuck to the bottom of the graduate, though, the problem will most likely eventually return. (There is a reason why the instructions for most stainless steel ware tell you not to clean with steel wool; you can and should either use an abrasive cleanser or buy stainless steel wool.)

Chloride ion (as in salt water) is rather aggressive towards stainless steel in the absence of oxygen; an interesting corrosion demonstration involves a rubber band stretched around a piece of Type 304 stainless and then placed in a bottle of salt water. The steel will corrode under the rubber band (where oxygen is excluded) forming notches which will eventually cut the steel in half!

[Thalmees]

I have a 4000 ml Leedal Graduated Stainless Steel measure container that has developed a pin hole in the bottom.
What is the best way to repair the leak?
Thanks
Gary

Hello Gary,
If I'm in your position, will try Epoxy 2 part mix, outside surface of the graduate.

[gary892]

Thanks for all the replies.

I will be making a trip to the hardware store soon.

Gary