Hot waxing the ski bottoms just requires:
- An old clothes iron (the type to get wrinkles out) that will never be used for anything other than skis again
- The wax, bought at a ski shop. Note the temperature range of the wax you buy. If you usually ski at night or in super cold weather (0F - 15F), you probably want cold temperature wax. If you ski during the day in spring, you probably want high temp wax. Otherwise get a mid range.
- A scraper (metal or plastic with a right angle edge) I sometimes use a "pastry knife"
- A cork buffing block. About the size of a dishwashing sponge. Buy at ski shop
Steps:
1. Find a place to work where you can cleanup wax shavings easily.
2. Figure out a way to mount the ski bottoms up. You can buy a ski clamp but I think they are unnecessary.
3. Melt the wax with the iron onto the bottom of the ski. It will dribble like faucet you didn't quite turn off all the way. With a ski you probably need to just go down the length once, maybe down and back. Its a practice thing to know how much wax you need.
4. Place the iron directly onto the ski and slowly iron the ski like you would a shirt. The goal is to melt the big wax drops onto a nice flat even layer on the ski.
5a. Scrape. Once at the start of the season, you'll want to do a "hot wax" where you scrape the wax off the bottom while it is still hot. The goal is to rip all wax and oil and dirt and metal filings out of the bottom of the ski. Think of this like exfoliating your ski. After you remove everything, repeat steps 1-4 and then go to 5b to apply the wax for good.
5b. Wait an hour. You want the wax to be cold and hard when you scrape it.
6. Scrape the bottom to remove "extra" wax and make a nice flat layer that feels fairly smooth to the touch. There will be some wax still on the bottom when you are done, you're just trying to make it smooth.
7. Buff the bottom with the cork block to make it super extra fast and smooth.
Unfortunately its a lot of work to wax skis yourself compared to using the big machines they have in shops. Let me know if you have questions.