Waxing cross-country skis: which wax, where and how to apply it

Do you really need to wax your skis?

Salomon lists choosing the right grip wax for the snow temperature among the sciences you will have to master, and says the skis that demand it are for advanced skiers [1]. Good news: for a pootle round the trails, you can happily do without.

Classic cross-country skiing has three kinds of grip. Fishscale skis grip best, at the expense of glide: ideal for learning and for gentle outings in the tracks. Skin skis, borrowed from ski touring, are a compromise between grip and glide, more forgiving than waxable skis, so much so that they turn up in long-distance racing. Waxable skis glide best, but their grip depends on waxes you must pick to suit the snow [1]. Skating has no grip zone, which makes for quicker waxing [3].

Enlarge diagram

For beginners the rule is simple: a fishscale or skin ski needs glide wax and nothing else, and Salomon points out that, grip waxing being hard to master, skin skis are a far easier answer for classic [2]. To choose your skis, our guide to classic or skating and the one on ski and pole length set out the basics.

Glide wax: five steps with an iron

The basic kit fits on a workbench: a waxing iron with adjustable temperature, a groove scraper, a plexi scraper (never a metal one), a brass or boar-bristle brush, a nylon brush and a block of universal wax. A full kit costs around 100 euros [2]. To start with, universal wax suits every kind of snow; you refine your choice later by temperature and moisture [2].

1. Clean the base with a brass or boar-bristle brush, tip to heel; if the snow was dirty, wipe on liquid wax remover with a cloth [2].
2. Melt: set the iron to the temperature on the block, usually 100 °C for universal wax (the harder the wax, the hotter), lay down two lines on each side of the groove, and spread it without leaving the iron in one spot [2].
3. Let it cool at room temperature for at least 10 minutes [2]; Bergzeit allows 20 to 30 [11].
4. Scrape the groove with the groove scraper, then the excess with the plexi scraper, in the direction of glide, without pressing too hard [2].
5. Brush with the brass or boar-bristle brush, then with the nylon brush to polish the base [2].

How often should you start again? Decathlon suggests waxing as soon as your skis take a lot of effort to push along on the flat [3]. Bergzeit goes further: an active skier refreshes the glide with liquid wax every 5 to 6 days on snow, with a hot wax at the start, middle and end of the season; an occasional skier makes do with the start and the end, and a grey film on the base means the treatment cannot wait [11].

That leaves the quick option: liquid wax. Swix, which describes it as an everyday product without fluoro, sprays on, dries for 15 minutes, then gets brushed with nylon, only in front of and behind the binding on a classic ski; it gives good glide for about 20 to 30 miles before the next coat [5]. It lacks the staying power of hot waxing, which soaks deeper into the base [11].

Grip wax: read the snow before you choose

Two families, depending on the snow. Hard wax looks like a crayon and is rubbed into the grip zone; it suits cold, fresh snow. Klister, a paste sold in a tube, is for wet and transformed snow [2] [4]. Glisshop explains that hard wax suits fresh snow and the days after it if the weather stays stable, before a thaw, and klister suits the time after a thaw, when the snow has turned to round, wet grains [6].

Next, put the wax in the right place. Decathlon has a method: stand on both skis laid flat, slide a sheet of paper under one ski and mark where it meets resistance. As a rule, the zone starts 15 to 20 cm in front of the binding and ends at the heel; if the ski grips poorly after a few outings, you can extend it to 25 cm in front of the binding [4].

1. Hard wax: strip the zone if needed, mark it off with masking tape, rub the wax on, smooth it with a cork, then repeat 3 or 4 times [4]; Swix counts 4 to 8 thin layers for V40 [5].
2. Klister: apply in V-shaped chevrons, spread with a scraper or by hand, in one or two layers [4].
3. Swix puts a base-wax underlay, ironed in or sprayed on, beneath the thin layers of grip wax [5].

Fishscale or skin skis: what still needs looking after

Fishscale and skin skis take no grip wax at all [2]. Their glide zones are waxed like those of any classic ski, and skins have a dedicated wax that brings both glide and grip [2]. Bergzeit adds two precautions: on a fishscale ski, a liquid spray against snow build-up and never any glide wax on the scales; on a skin ski, a skin treatment renewed about every second or third outing, a skin lasting 100 to 150 days on snow [11].

Fluoro wax: why nobody wants it any more

The FIS voted a total ban on fluoro waxes in November 2019, then brought it into force for the 2023-2024 season [7] [8]. Rule 222.8 prohibits waxes and preparation products containing fluorine in all disciplines and at every FIS level; using one in a race means disqualification [8].

Testing uses Fourier transform infrared spectroscopy, in a dedicated area near the finish: at 1.0 absorbance units or less, the test is negative; three positive points on one ski mean disqualification. The FIS team took 60,000 measurements over the 2023-2024 season [7]. At the Milan-Cortina 2026 Games, three athletes were disqualified for waxes containing PFAS, according to Chemistry World [10].

The issue goes beyond racing. In March 2025, Empa, the Swiss federal laboratory, sampled snow at the Engadin Ski Marathon: the highest PFAS levels were at the start line, where skis had just been waxed, and the soil at the same sites was contaminated. On the skis of the ten best professional racers, no PFAS was found. Empa blames mostly a lack of awareness, and recommends that recreational skiers use waxes labelled fluoro-free [9].

Beyond the workbench lies the trail. An iron, a block of wax and ten minutes’ wait: that is all the first silent glide of the season asks for, the one that makes you want to go out again the very next day.

Worth watching

Madshus shows step by step how to apply grip wax to classic skis, the stage of waxing that is hardest to picture from a text alone.

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Nolwenn Bastide

Trail running, snow, water, nature and destinations

Nolwenn covers trail running, snow, water, nature and destinations for Outfarer. Curious about everything, from meteor showers to night-train timetables, she has a knack for unearthing the one detail that changes everything, and putting it in a single sentence.

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