Patching tube with silicone

meb said:

Many years ago I had success mounting tubless tires and even patching
them with rtv silicone, patching even worked better than with rubber
cement. That is a less flexible and lower pressure application than
bicycle tube. Does it work with bicycle tubes vs. the traditional
rubber cement or are there problems there.

I haven't tried it myself, but every atempt I've seen by others has
failed. Given that conventional patching methods work well, and that
the materials are readily available and inexpensive (and produce a
result that can be ridden in minutes, not hours), I have had no urge
to investigate whether it would work.

The tubeless tire patching methods I have seen recommended involved
the use of a special type of cyanoacrylate glue, not RTV.

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right! but special cyano need not be more than brand name quality super
glue best as the non flowing thickend variety
on going thru my pile of used tubes for repair
i came upon a nashbar bike specific oval patch with feathered edges
which stood out like a sore thumb
so much so that next time ima gonna buy more.
the feathered edges tapir off to zero thickness and glue-ed DOWN!!!
like this sucker is TIGHT to the tube.
on the shelf and as yet unused is a woolmort auto patch kit
holding several round feathered patchs!!!!
that's next to the Indy valve tool just down from the blue locktite.