>>2082282Once you have a section thoroughly coated in wax, use a hair dryer on a hot setting or a heat gun on a low setting and melt the wax into the fabric. You're going to see the wax first liquify and absorb into the fabric, then it will seemingly evaporate. You want it to disappear, not stay as a wet spot; the wet spot is just melted wax on the outside of the fabric, when it disappears that means the fibers have absorbed it completely.
Go slowly, melting the wax into the fabric as thoroughly as possible. I strongly recommend using a hair dryer and not a heat gun, as the heat gun can damage the fabric. If it's made of artificial fibers, especially nylon, the heat gun can MELT whatever you're trying to waterproof. Use a hair dryer. The instructions on the wax bar's box say to use a clothes iron; do not do this unless you really feel like thoroughly cleaning your iron afterward to avoid getting wax on other shit later.
Go slowly, take your time, be as thorough as possible, and try to get wax on as much of the item as you can. Remember when I said to silicone the seams, under buttons, etc. because it's hard to rub the wax into the fabric in those places? Try your best to get some wax there anyway.
Again, if the item you're waterproofing is thick, you may want to apply wax to the inside as well.
