Heavy application of pine tar/turpentine

Pine tar - Wikipedia

Diamond G Forest Turpentine Soap - Spirit of Health Store

How to Make Pine Tar Salve

The Pine Tar Experiment - DeepZoom Blog

Turpentine - Wikipedia

From the farrier's kit to the workbench: Making your own varnish

EQUINE RELIEF: Soothing treatment for quarter cracks, split hooves, hard frogs and many other types of hoof problems. HELP RETAIN HOOF MOISTURE

Bickmore Pine Tar 1 Gallon - Hoof Care Formula for Horses

The Long, Strange History of Medicinal Turpentine - Gastro Obscura

Genuine Pine Tar: 100% Organic authentic Stockholm pine tar.

Gum Turpentine – Tjärfärg från Auson

Gum Turpentine – Tjärfärg från Auson

From the farrier's kit to the workbench: Making your own varnish

Making Pine Tar (ancestral skills forum at permies)

How to Make Pine Pitch Salve on the Homestead - Joybilee® Farm