Hi Ken,

I have used a product similar to Shoegoo that I think is silicone based called GOOP, it comes in a tube just like Shoegoo. There are different varities of GOOP (household, bathroom, marine, automotive) and I have had great luck with it sealing and glueing anything, I keep it in my auto and boat kits.

I recently split the sole of my Danner boot and plan on using Shoegoo to try and repair it. The 3 " split is right across the ball of the sole so if it can patch this then it can patch any shoe.

I will let you know how it works.

Mike