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24 Nov 2024

Non-Fluorinated Waxes in Cross-Country Skiing: A Deep Dive

Non-Fluorinated Waxes in Cross-Country Skiing: A Deep Dive

The transition away from fluorinated ski waxes has created a wave of innovation in the cross-country skiing world. Non-fluorinated waxes are now a staple for both competitive and recreational skiers, but understanding what sets them apart from their fluorinated predecessors—and how to use them effectively—is key for success on the trails.

Here’s a detailed look at the composition, performance, and application of non-fluorinated waxes compared to the once-dominant fluor waxes.


Fluorinated vs. Fluor free Waxes: What’s the Difference?

Fluorinated Waxes (Now Banned by FIS):

  • Contained per- and polyfluoroalkyl substances (PFAS), which created a hydrophobic (water-repelling) surface. This reduced friction, particularly in wet or dirty snow conditions, leading to unmatched speed.
  • Offered superior glide and dirt resistance by repelling water and contaminants from the ski base.
  • However, they posed serious environmental risks. PFAS are "forever chemicals," meaning they persist in ecosystems and can bioaccumulate, affecting both wildlife and human health.

Non-Fluorinated Waxes:

  • Free from harmful PFAS compounds, making them environmentally safer.
  • Rely on advanced synthetic polymers and specialized additives to mimic the hydrophobic and glide-enhancing properties of fluorinated waxes.
  • Focused on condition-specific formulations, targeting cold, wet, or variable snow conditions with precision.

What’s Inside Non-Fluorinated Waxes?

  1. Synthetic Polymers:

    • New polymer technologies replicate the low-friction surface previously achieved by fluorine. These polymers are carefully engineered to bond with the ski base and enhance glide.
  2. Advanced Additives:

    • Non-fluorinated waxes often use ceramic or graphite particles to reduce static buildup and improve dirt resistance. These particles also help skis maintain speed in varied snow conditions.
  3. Hydrocarbon Blends:

    • The backbone of non-fluorinated waxes, hydrocarbon blends are tailored for specific temperatures and snow types, ensuring maximum compatibility with the snow crystals.
  4. Silicone-Based Hydrophobic Agents:

    • Silicone compounds are used to create water-repelling surfaces. While not as effective as fluorinated compounds in extreme wet conditions, they offer a strong alternative in moderately wet snow.
  5. Enhanced Durability Coatings:

    • To counteract the faster wear often associated with non-fluorinated waxes, manufacturers have incorporated materials that extend the wax's lifespan on the trails.

Performance of Non-Fluorinated Waxes

Advantages:

  • Environmental Friendliness: The absence of PFAS ensures these waxes are safe for the environment and align with sustainability goals.
  • Condition-Specific Performance: Non-fluorinated waxes excel in cold and dry snow conditions, where hydrophobic properties are less critical.
  • Improved Durability: Modern formulations resist wear better than earlier non-fluoro options.

Limitations:

  • Wet Snow Glide: Fluorinated waxes excelled in wet conditions, particularly in the presence of dirt and moisture. Non-fluorinated alternatives are still catching up in this area but are improving with each generation.
  • Application Precision: Non-fluorinated waxes often require meticulous application and layering to achieve optimal performance, especially in competitive scenarios.

Application Techniques: Getting the Most from Non-Fluorinated Waxes

  1. Base Preparation:

    • Ensure the ski base is clean and smooth. Use a base cleaner to remove old wax and debris, followed by brushing with a fine steel or brass brush to create micro-grooves.
  2. Temperature-Specific Waxing:

    • Choose waxes formulated for the exact temperature range you’ll be skiing in. Non-fluorinated waxes tend to have narrower performance windows, so precision is key.
  3. Layering with Additives:

    • Many brands offer topcoat solutions, such as liquid paraffins or paste waxes, that enhance glide for specific conditions. These should be applied after the base wax and buffed to a shine.
  4. Using the Merino Roto Brush:

    • The Merino Roto Brush is a game-changer for applying non-fluorinated wax. After waxing, use the merino brush attachment on a rotobrush to polish the ski base. The natural fibers of the merino brush distribute the wax evenly, smooth the surface, and enhance the hydrophobic layer, resulting in superior glide. This technique is especially useful for racing scenarios where every detail matters.
  5. Quick Application in the Field:

    • Liquid waxes are excellent for touch-ups during a race or training session. Apply, let dry for a few minutes, and buff for immediate improvement.

Leading Non-Fluorinated Wax Brands

  1. Vauhti:

    • Vauhti is at the forefront of non-fluorinated wax technology. Their Pure Pro Glide series delivers excellent performance across snow conditions, with advanced hydrophobic additives that rival fluor-based waxes.
  2. Toko:

    • Toko's Base Performance Liquid Paraffin (BPLP) offers exceptional performance in cold and moderately wet snow. The glide is competitive, and the application process is quick.
  3. Swix Pro Line:

    • Swix Pro features temperature-specific products with advanced polymers for high-level racing. Their focus on durability makes them a popular choice for marathon events.
  4. Rex G Series:

    • Rex combines nanoparticles and advanced hydrophobic agents to deliver speed and resistance to dirt buildup.
  5.  

Why Non-Fluorinated Waxes are Here to Stay

The ban on fluorinated waxes isn’t just a regulatory change—it’s a shift in how we approach skiing sustainably. While there are still areas where performance could improve (particularly in wet snow), non-fluorinated waxes are closing the gap with innovative technologies.

For competitive skiers, mastering the application of non-fluorinated waxes is crucial. These waxes reward careful preparation and thoughtful layering, helping you glide faster while reducing your environmental footprint.


Get Expert Help with Your Waxing Setup

Navigating the world of non-fluorinated waxes can feel daunting, but the right guidance makes all the difference. At Winthrop Mountain Sports, we specialize in ski preparation and waxing advice. You can even book a session with Erik Bjornsen, a 2x Olympian, to fine-tune your gear and learn advanced waxing techniques.

Click here to schedule your session.

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