To waterproof your hoes using candle wax, in the same way, that you use beeswax. Melt the candle wax till it is a clear liquid.
Make sure that the candle wax is white and not dyed. You do not want any of that dye transferring onto the shoes.
For the wax to settle nicely, you will have to make sure that the shoes are clean and dry. Then make sure to test the wax on a part of the shoe that is inconspicuous just in case the material and the waxing method you want to use are not compatible.
Once you are sure that it is safe, you can then rub the wax all over the outside of the shoe. Coat the entire shoe evenly. There will be a build-up of wax, but this will dissipate once you apply heat.
When you are done waxing the shoe, set the hairdryer to a high heat setting, and then evenly run it over the shoe.
Hold the nozzle close to the shoe so that the built-up wax can melt. Keep this up until all the wax has melted. Once the entire shoe is done, you can then take it for a test drive.
Pour some water onto the shoes to ensure that the entire shoe is now waterproof. The water should roll off like water off a duck’s back.