Sutures, braided repair fabrics & repair adhesives are available from Sound Horse
Dr. Scott Morrison – http://www.equilox.com/instructionsForUse/howToVideo.html
This video is on the Equilox™ (brand name) website. It will show Scott using several layers of a braided polymer fabric (not fiberglass) saturated in acrylic adhesive (epoxy-methylmethacrylate) to bridge & stabilize a quarter crack. Note that he uses stretch wrap to secure the patch while it cures. Hoof is on the ground during cure – no need to hold hoof. These repairs are remarkably rigid.
Cure Temperatures: If you are concerned about the exothermic cure temperatures of the standard acrylic adhesive (epoxy-methylmethacrylate… slow set) used in the equine industry, check out this brief article: https://soundhorse.com/technical-articles/adhesive/acrylic-adhesive-cure-temperatures/
Aaron Gygax – https://soundhorse.com/technical-articles/hoof-repair/quarter-crack-repair-technique/
A brief article with photos from soundhorse.com that shows a technique to use sutures to lace a quarter crack without penetrating the hoof wall. This was done by Aaron Gygax, a Swiss farrier, while he worked at Rood & Riddle with Dr. Scott Morrison. A bit more complicated but a useful technique to understand.
Ian McKinley – http://www.youtube.com/watch?v=sx5gU1K7KtQ
Ian McKinley (drain) – http://www.youtube.com/watch?v=nLqOOtfOL84
These two videos show Ian doing a more traditional crack repair using stainless sutures. Ian drills the hoof wall & inserts the sutures from both sides of the crack & twists in center and then stabilizes the crack with a mix of chopped fiberglass and acrylic adhesive. He uses a sheet of a food wrap (saran wrap?) to cover the repair while it cures and uses a rasp to clean up the patch.
Here are two additional farrier repairs shown on You Tube that may prove useful:
Doug Anderson – http://www.youtube.com/watch?v=vpW2F9fm-fY
A video from AFJ TV (American Farriers Journal) that shows a different technique used by Maryland farrier Doug Anderson.
Patrick O’Hara – http://www.youtube.com/watch?v=PVXLxFRFEP8
This is a short but clear video from oharashoeing.com that demonstrates another lacing technique to stabilize / repair a quarter crack. This is similar to Ian McKinley’s repair of a thoroughbred.