I bought some 45 pound barbell weights at a garage sale to use as a boat
mooring. They are in pretty good shape. I intend to leave them at the
bottom of the lake; will they rust away? I don't care about some surface
rust; I just don't want them to disappear.
If they will rust, I have some epoxy varnish. Presumably there will be no
UV to degrade it; will it prevent the rust? Thanks.
(reading this, it sounds a bit silly; but I am serious)
If you can keep the oxygen away, then it won't rust, at least, not
Unfortunately for you, the water has oxygen in it and it will
'oxidize' very quickly. Those cheap barbells filled with concrete
Not really suitable for this use. Moorings need to be pulled up and
inspected annually anyway. Moorings are usually based on a galvanized
mushroom anchor that is not only very heavy, but works it's way into
Yes, they will rust.
Just recently salvers raised a Confederate submarine (sunk during the recent
unplesantness) and it sure enought had some holes in its structure. Of
course the submarine's iron plating was probably thinner than your barbells,
but I wouldn't count on much more than 150 years.
What works in my area for small boat moorings is a garbage can filled
with concrete . You put a 2" or so pvc pipe through the can , fill with
cement and you have enough weight and a nice hole to run a chain
The cast iron will corrode fairly quickly . Sealing them will help.
Depends on a lot of factors. Barbells, as someone pointed out, are
probably a very low grade cast iron. Probably to the point of being
somewhat porous. Iron and cast iron are not the same thing either.
"Steel", likewise, is an alloy and covers a wide range of properties.
A blanket statement that cast iron will rust more slowly than steel is
incorrect, unless you specify more precisely which alloys and
production methods you are comparing.
Cannot say anything as a metal expert, but I think the life of your barbells
will depend on the content and quality of the cast iron. Being barbells,
probably made in China, they used the cheapest, easiest to get iron to make
the barbells. Since they only function to be a weight, there will be no need
for a good quality iron to be used.
That said, I used to work for a gas utility, and they still had cast iron
gas mains in use that were close to 150 years old. Ordinary steel mains
required coatings and anodes to prevent corrosion but the cast iron needed
nothing to keep it in good useable condition. I can only assume that the
iron that was used to make them was a good quality iron made to a specific
I'm thinking a four foot section or so of rail road track (iron).
Torch a hole in one end, tie it off and drop it where you like.
(I've got an anvil made from a track)
"Well, it doesn't happen all the time, but when it happens, it happens
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.