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Skis stored without preparation will come back next season with oxidized bases, rust on the edges, and potentially compromised base structure. The process to prevent this takes about 30 minutes and a few dollars of wax. Skipping it costs you more: base grinding, edge work, and lost performance days at the start of next season.
Why storage preparation matters
Ski bases are made from ultra-high-molecular-weight polyethylene (UHMWPE), a sintered or extruded plastic that absorbs and holds wax. When that plastic is exposed to air for months without a wax coating, it oxidizes — the surface dries out, loses its wax-holding structure, and becomes visibly lighter in color (the grey or white haze you sometimes see on neglected bases).
Oxidized bases don't accept wax the way healthy bases do. A full base grind can restore the surface, but that removes material — each grind takes roughly 0.1–0.3mm off the base, and there's a finite number of grinds before the base is too thin to tune safely.
Steel edges are equally vulnerable. Exposed to moisture and humidity through summer, they develop surface rust. Light rust can be filed off; deep rust pitting requires professional regrinding and may compromise edge integrity.
Step 1: Clean the skis
Before applying any wax, get the base clean. The end of the season means accumulated dirt, dried wax, and fine debris have worked into the base structure.
Wipe the base with a clean cloth. For a more thorough clean, apply a citrus-based base cleaner (Swix I62, Toko Base Cleaner, or equivalent), let it sit for 30 seconds, and wipe before it fully evaporates. Don't scrub aggressively — you want to lift surface contamination, not push it deeper.
Clean the edges with a dry cloth or cork to remove any moisture. Inspect for existing rust: minor surface rust appears orange-brown and should be addressed before storage. Light rust can be removed with a gum stone or fine diamond stone followed by a light pass with a finer grit.
Step 2: Apply storage wax
Storage waxing is different from performance waxing. The goal is not glide — it's protection. You apply a thick coat of hot wax and leave it on, unscrapped, through the off-season. The wax seals the base and edges from oxidizing.
Use a universal or warm-temperature wax (temperature range 0°C to +10°C is fine for storage regardless of where you ski). It doesn't need to be an expensive fluorinated wax. A block of basic hydrocarbon wax — Swix CH, Rex Base, Dominator Zoom — costs $12–18 and is adequate.
Hot wax process for storage:
- Set your iron to the correct temperature for the wax (typically 110–120°C for hydrocarbon wax; follow the wax manufacturer's guidance). The wax should drip cleanly, not smoke.
- Drip wax liberally along the full length of the base.
- Iron the wax in, working tip to tail. Keep the iron moving — stopping on one spot for more than a second will overheat the base.
- Apply a second coat, again keeping the iron moving.
- Let the ski cool completely — minimum 30 minutes at room temperature.
- Do not scrape. Leave the wax on the base. The thick, unscrapped coat is the protection.
The wax will also coat and protect the edges as it flows off the base, providing some rust protection. For extra insurance on valuable edges, a very light additional wax application directly to the edge surface is worth doing.
Step 3: Address the bindings
Step-in alpine bindings store their release settings via spring tension. Conventional guidance suggests releasing the heel piece to its lowest DIN setting for storage to reduce spring preload over months. Whether this meaningfully extends spring life is debated among technicians, but it costs nothing to do and represents the conservative approach.
Do not store boots in the binding. The clamping force over months can deform the boot sole, and boot sole length is a calibrated input to your DIN setting — even minor deformation affects release accuracy.
Step 4: Storage environment
Temperature and humidity are the main variables to control.
Avoid high heat. A garage or attic in summer can reach 40–50°C. At these temperatures, binding materials can soften, adhesive bonds in ski construction can weaken, and some core materials absorb moisture differently under heat stress. A cool interior closet, basement, or climate-controlled storage unit is significantly better.
Avoid high humidity. Consistently humid environments accelerate edge rust even through a wax coat. If your storage area is humid, a simple desiccant pack or small dehumidifier reduces the risk.
Store horizontally when possible. Storing skis vertically, leaning against a wall, applies stress at specific contact points over months. Horizontal storage on a rack or flat surface eliminates this. If vertical storage is your only option, use a proper wall-mounted ski rack that distributes weight across the full tip-to-tail length, not one that rests the ski on its tail.
Store bases together. Binding the pair base-to-base (with rubber ski straps or old inner tubes) prevents the bases from being exposed to light and air, and keeps the skis together and organized.
Boots and poles
Ski boots deserve the same care. Remove liners from the shell, dry them fully (24–48 hours with the buckles open, in a well-ventilated area), and store them buckled loosely to hold shape without compressing the foam. High heat damages boot liner foam and thermoplastic shells — keep boots out of hot cars and sunny windows.
Poles simply need to be clean and dry. Check basket and grip condition; replace worn baskets before next season rather than at the hill when you need them.
Start of season prep
When you pull the skis out in November or December, scrape the storage wax and apply a fresh, properly temperature-matched wax before your first day. Don't ski on unscrapped storage wax — it's thick, soft, and provides poor glide. The 20-minute prep before your first day returns the ski to full performance and means you're not spending opening weekend on degraded equipment.
Where to Buy
Storage supplies — wax, base cleaner, iron, gum stones — are stocked reliably at:
- REI (rei.com) — carries Swix, Toko, and other major wax brands year-round. Good return policy if you're unsure about an iron purchase.
- The House (thehouse.com) — strong tuning and wax inventory at competitive prices. Often has wax bundles and iron packages that represent good value.
- evo (evo.com) — reliable tuning accessories section; good selection of storage wax and base cleaner from multiple brands.