Vulcanising glue and bicycle inner tube? Like a bike tyre patch. Just a theory though.
Sewing, Repairing and Reducing Waste
A place to share ideas, knowledge and creations with textiles. The focus is on reducing waste, whether that be sewing from the scraps left from other projects, using the end of rolls and remnants, or repairing and remaking finished pieces.
Shoe goo
Precisely what I came here to say. Several thin layers.
And on the interior. I patched many pairs of waders and just an exterior patching will wear out.
*If its an honest leaking crack then your best bet it to make the seal meet on either side.
As I was thinking about this, yes inside and out. I've got some snow pacs I've repaired this way. I bought them in the late 80s, and they are still going strong.
Great stuff, also found an equivalent called E6000
while we're on the subject, are there any brands that make gumboots with wide toe-boxes?