Yes.....temporarily. WD 40 is basically kerosene. Dip your boots in kerosene and the oil will diffuse water until it evaporates. However, what does it do to your leather? And how long will it last? Any chemical compound will eventually cause your boots to dry rot. Depending upon how much they cost.....not a good thing!
When choosing the best leather care product, the first thing to remember is that leather is an animal skin. And the care and feeding of leather must be consistent with its natural state to prevent drying, cracking, distressed leather, and rotting stitching. That means, NO chemicals (Including WD40), NO mineral oil, NO neatsfoot oil, and NO paraffin. Only pure beeswax, tallow, cod oil, and pine resin, were the accepted ingredients for preserving and waterproofing leather. Trappers, loggers, hunters, and especially the military knew the importance of preserving leather and stitching. Ole Time Woodsman has recreated the exact formula that those who relied upon dry and long lasting footwear once used.
Simply warm the Ole Time Woodsman Boot Grease with a hair dryer and apply with a rag or fingers directly to the leather. Pay attention to the seams and stitching. Let dry, wipe. and buff.
There is nothing better for your boots and saddles!
Ingredients: Natural Beeswax from Maine, Hand Rendered Beef Tallow, Pure Cod Oil, and Pine Resin Volume: 8 fl oz