Dubbin is a wax product used to soften, condition and waterproof leather and other materials. It consists of natural wax, oil and tallow. Dubbin has been used since medieval times to waterproof and soften leather boots. It is different from shoe polish, which is used to impart shine and colour to leather.
- Other references
-  - Material Safety Data Sheet - Joseph Lyddy dubbin.
-  - Opportunities for industry and the safe investment of capital (1859) Rothman, E., Lippincott, USA
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- Holman, H.P., Jarrell, T.D., (date unknown) The Effects of Waterproofing Materials and Outdoor Exposure upon the Tensile Strength of Cotton Yarn, Industrial and Engineering Chemistry, 15(3), US Department of Agriculture, Washington.
- Stewart, C.S., (1977) Factors Affecting the Cellulolytic Activity of Rumen Contents, Applied and Environmental Microbiology, pp. 497–502