Headquartered in Switzerland, the ETH Zurich spinoff ThermAdapt GmbH has developed the SichtKlar series of hydrophilic anti-fog coating films. Based on innovative materials science and outstanding performance, this product offers an efficient and reliable solution to the long-standing fogging issues across various industries. As a cutting-edge transformation of ETH research, SichtKlar successfully brings super-hydrophilic anti-fog technology into practical applications—ensuring clear visibility while significantly reducing maintenance costs. Whether in everyday use or professional scenarios, the series delivers remarkable value in enhancing safety and user experience.Choosing SichtKlar means choosing clarity and safety—setting a new standard in the field of anti-fog technology and helping every user enjoy a consistently fog-free visual experience in any environment.The Challenge of Fogging

In everyday life and sports settings, fogging on mirrors and lenses poses a major problem. Car side mirrors are prone to misting in rainy or foggy weather due to temperature differences and humidity. Ski goggles and motorcycle helmet visors often fog up in cold environments because of breath and changing conditions. Swimming goggles fog frequently underwater and in chlorinated pools, severely affecting visibility.
These tiny condensed droplets scatter light, significantly reducing clarity and creating inconvenience—or even safety hazards—for users. Traditional anti-fog methods, such as temporary sprays or basic hydrophilic coatings, often offer limited effectiveness and short durability. They require frequent reapplication and fail to meet the long-term clarity demands of professional use.


Technical Principle: Super-Hydrophilic Coating for Anti-Fogging

To address the challenges of fogging, the team at ThermAdapt GmbH, a spinoff from ETH Zurich, approached the problem through materials science by developing the SichtKlar series of hydrophilic anti-fog coating films. These films are formulated at the molecular level, with a carefully engineered chemical composition and microstructure that achieves an exceptionally super-hydrophilic surface.In general, a solid surface is considered super-hydrophilic when the water contact angle is below 10°. The SichtKlar coating reduces this angle to nearly zero, allowing any water droplets that land on the surface to instantly spread out into a uniform, transparent film instead of forming light-scattering beads.This super-hydrophilic interface effectively prevents fogging: when moisture condenses, it immediately flattens into a film, eliminating visual obstruction from fog droplets and maintaining long-lasting clarity. Moreover, the continuous water film flows smoothly across the surface, helping to carry away dust and fine particles and making subsequent cleaning easier.Through advanced nanoscale material design, SichtKlar transforms cutting-edge technology into a visible anti-fog solution, enabling users to enjoy a crystal-clear view—consistently and reliably—in any environment.


Material and Performance Advantages: Scratch Resistance, Durability, Chlorine Resistance, and Superior Weatherability

The SichtKlar series not only stands out with its unique anti-fogging principle, but also offers exceptional physical and environmental resistance thanks to advanced material selection and structural design. Even under harsh conditions, it maintains consistent and stable performance—clearly outperforming many conventional anti-fog products on the market in the following key areas:

● Scratch Resistance
The coating’s hardness and adhesion have been precisely optimized. Even with frequent wiping or contact with dust and abrasive particles, the surface resists scratching, preserving optical clarity over the long term.

● Long-Term Durability
Built with a tightly crosslinked molecular structure, the coating bonds firmly to the substrate. It remains stable even through repeated cycles of heat, cold, and humidity. Unlike traditional coatings that degrade quickly, SichtKlar eliminates the need for frequent reapplication.

● Chlorine Resistance
Specially designed for use in chlorinated environments such as swimming pools, SichtKlar's coating shows strong resistance to chlorine corrosion. Even after prolonged exposure to chlorinated water, its anti-fog and adhesion properties remain intact—far superior to typical anti-fog agents or films used on goggles. This makes it especially suitable for swimming eyewear and similar applications requiring repeated washing and immersion.

● Heat and Humidity Resistance
Whether exposed to high temperatures (e.g., inside a car under the sun) or high humidity (e.g., in bathrooms or steam environments), the film retains strong adhesion and anti-fog performance. It does not age or deteriorate when subjected to extreme environmental stress.

● Salt Spray Corrosion Resistance
SichtKlar’s surface is well protected against corrosive environments such as salt spray—making it ideal for use near coastlines or on roads treated with deicing salts. Applications like motorcycle visors and exterior vehicle mirrors remain clear and fog-free, with coatings that resist corrosion, fogging, or peeling.

Thanks to these material and process enhancements, the SichtKlar series provides reliable and long-lasting anti-fog protection in a wide range of demanding conditions—extending product life, maintaining performance, and delivering a worry-free experience to users.



Key Functionalities: Anti-Fogging and Water-Film Self-Cleaning
The SichtKlar film is designed to address users’ core needs for visual clarity and minimal maintenance. It delivers outstanding performance in two essential areas: continuous anti-fog protection and water-film-based self-cleaning.

● Continuous Anti-Fog Protection
The super-hydrophilic coating on the film instantly transforms condensed moisture into a transparent water film, effectively preventing fog formation. Even in environments with sharp temperature differences or high humidity—such as moving from a cold outdoor setting into a warm room—the film surface stops water vapor from forming fog droplets that would obstruct the view.This is an active anti-fog solution that requires no heating, no electricity, and no external power source. It relies entirely on the intrinsic surface properties of the material, making it efficient, reliable, and maintenance-free. Users can enjoy clear vision instantly, without pausing to wipe or clean their lenses or mirrors.

● Water-Film Self-Cleaning
The unique hydrophilic surface of SichtKlar doesn’t just prevent fog—it also enables self-cleaning through water films. When the surface becomes dirty with dust, fingerprints, or oily residues, a simple rinse with water—or natural rain—is enough to trigger the spread of a continuous water film that carries away contaminants.
This is particularly valuable for oily smudges that are notoriously hard to clean on traditional surfaces. On SichtKlar, water spreads out evenly, lifts the oil away from the surface, and flushes it off—significantly simplifying the cleaning process.Users no longer need harsh chemicals or constant wiping to maintain a crystal-clear surface. The self-cleaning water film not only extends the durability of the anti-fog coating, but also enhances daily convenience.

 Combined Benefits
By combining anti fog and self-cleaning functions, SichtKlar film ensures clear visibility while minimizing maintenance needs, truly achieving worry free and effortless use, providing excellent user experience for professional users.


Typical Application Scenarios: Clear Vision, Enhanced Safety

The SichtKlar series of hydrophilic anti-fog films is suitable for a wide range of fog-prone transparent surfaces. In various real-world scenarios, it significantly improves visibility and enhances safety:

● Car Side Mirrors
In rainy or cold and humid conditions, water vapor easily condenses on side mirrors, leading to blurred rear visibility and increasing driving risk.When SichtKlar film is applied, it effectively prevents fogging, ensuring that drivers maintain a clear view of the road behind—even in adverse weather. This greatly improves driving safety and confidence.

● Ski Goggles
During high-speed skiing, body heat combined with cold outdoor air can quickly fog up the inner surface of goggles, impairing the athlete’s ability to read terrain and react in time.With SichtKlar coating, ski goggles maintain clarity even under rapid temperature changes and intense motion, allowing skiers to navigate snowy environments with confidence and precision.

● Swimming Goggles
Swimming goggles frequently fog up due to alternating water and body temperatures, and the chlorine in pool water gradually degrades most standard anti-fog coatings.SichtKlar, with its chlorine-resistant properties, provides long-lasting fog prevention even during prolonged use in chlorinated water. Whether for competitive swimming or everyday play, it ensures clear underwater vision—supporting the swimmer’s orientation, awareness, and safety.

● Motorcycle Helmet Visors
Cold air and breath trapped inside a helmet can cause heavy fogging, sometimes forcing riders to crack open the visor and risk exposure to the cold.With SichtKlar, helmet visors gain all-weather fog resistance. Even in high-speed or winter conditions, the visor interior remains clear and fog-free, allowing riders to keep the visor closed while maintaining a wide and unobstructed view—significantly improving riding safety and comfort.

In addition to the above scenarios, any field where there is a problem of window fogging, such as security monitoring camera housings, diving masks, protective goggles, etc., can benefit from the clear and fog free view brought by the SichtKlar series film. By applying this advanced anti fog technology to a wide range of device surfaces, users can achieve unprecedented visual clarity and reliability in various environments.