Our eighteen year old mare has foundered in the past. Her feet were in poor condition from bad farrier work prior to our purchasing her at auction. We hired a highly recommended new farrier to work on her feet. She was trimmed from the heels and frogs then filled in with epoxy and fiberglass. He then shaped both feet and added aluminum shoes and nails. She will need new shoes every 6-7 weeks as the hooves grow in. Our new farrier was so kind and fast with our mare. Our mare no longer trips when she walks and is feeling very good these days.