Why do you want to wax your snowboard? It seems pretty slick already but the bottom of your board is made of a material called petex and if you were to look at it under a microscope it would look like swiss cheese and when you heat up that petex all those little swiss cheese holes get filled up with wax and impregnate the petex and help prevent it from drying out. Each time you heat up the base you open up those pores and allow the wax to impregnate deeper into the base material. This ensures your base will last many seasons.
This video goes through the step by step hot waxing process. You can get much more technical with hot waxing when prepping for races but this basic waxing process is essential to maintaining your snowboard or skis.