How to Apply Ski Wax
Set Your Iron Temperature
Before hot-waxing your skis, it’s important to understand the significance of the manufacturer’s recommended iron temperature for applying a given wax. All waxes that call for iron application are designed to melt at a specific temperature.
Always set your iron to the proper temperature for the wax you’re applying, and give it plenty of time to reach (and hold at) that temperature. Conversely, if your iron is already heated up and you’re switching to a wax that calls for a lower temperature, give the iron plenty of time to cool down before diving back in.
To find the recommended iron temperature, look on the box your wax came in, and be aware that most brands list it in celsius. If your iron reads in fahrenheit, you’ll need to convert accordingly.
Band Brakes
In order to run an iron unimpeded down your ski, you’ll need the binding’s brake arms to be held out of the way. To do this, set your ski “right side up” on your vices and use your hand to press down on and engage the brakes (the piece the heel of your boot stands on). Once the brake arms are up and fully above the base of the ski, secure a heavy-duty rubber band (or strap) to each brake’s arms, and wrap it up and over the heel piece of the binding. Make sure the band is secure and not liable to come undone while you have a hot iron in hand!
Clean/Debur Edges
Before you run your expensive wax iron (or hand, for that matter) down the length of your ski, you’ll want to make sure that the edges are free of base-edge burs or hangers. These sharp protrusions will score your iron’s metal plate, which can lead to nasty scratches to your skis’ bases during future waxing. Using a gummy stone (or file, if need be), carefully knock down anything you find, making sure not to overly round off the edge.
Clean Ski Bases
While your iron continues to heat up to temperature, it’s a great time to clean and prep your bases. First, you’ll want to remove as much old wax as possible by gently scraping your skis using a plastic scraper. This gets rid of any unwanted wax build-up, especially on the tip and tail of your skis, while smoothing down hairs that may have developed on your bases from contact with coarse snow. Then, use a nylon brush to pull any leftover wax out of the structure of your skis. Make a few passes tip-to-tail to make sure you get as much of the old wax out as you can. And finally, use a piece of fiberlene cloth to wipe down the bases and pick up any last remnants of wax dust and debris. If your last wax job involved the use of high-fluorination waxes and/or powders, this is where you may want to use a base cleaner to ensure full removal of excess additives.
Tape Sidewalls
While this step is optional, it will save you a lot of hassle when it comes time to remove the wax. As the wax melts under the iron (see below), any excess wax that’s pushed over the edges will drip down your sidewalls and adhere. On skinnier skis, where your binding’s toe lug extends beyond the edge, excess wax also has a tendency to find its way into moving components, which is at best annoying to remove, at worst a safety hazard (those components need to move in order to properly release your boot).
Using a low-adhesive tape (think masking or painter’s), apply the tape along the sidewall, making sure not to let any stick up above the (base side) edge that will interfere with the iron. It’s easiest to perform this task with the ski base side up and already secured in your vises.
Melt (Drip) Wax On To Skis
Using your clean and fully heated iron, which should be set to the appropriate temperature, you’re ready to drip the wax you’ve selected onto your ski bases. As you’re dripping wax on your bases, move the iron slowly from the tip to the tail, ensuring the wax doesn’t overheat, which will burn your bases (if the wax starts to smoke as you melt it, your iron is too hot). The amount of wax you drip on your skis will depend on the width and length of your skis, but as a general rule, you’ll want to apply enough to cover your skis with a thin layer of wax, but not so much that scraping it becomes a cumbersome task.
Iron In Wax
Once you’ve dripped wax on your skis, you’ll use your iron to make 3-4 slow passes from tip-to-tail, melting the wax as evenly as possible. Keep the iron moving at all times—moving too fast prevents even distribution of the wax and limits absorption, while moving too slowly can burn your bases. A good indicator for the right iron speed is to keep a 3-4 inch “trail” of wet wax behind your iron.