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Website under reconstruction
We are currently updating and restructuring our web pages to provide you with clearer information, new technical documentation, and multilingual access.
All Komsol® products remain available as usual through our international partners and regional offices.

Important notice

We kindly ask all professionals to verify any claimed certifications carefully.
Only products officially listed under the EU Construction Products Regulation (EN 1504-2 System 2+) are legally approved.
Several products on the market falsely refer to “tests” or “certifications” that do not exist or are not recognized by the European Union.

All authentic and approved standards can be verified on the official EU websites:

• NANDO (New Approach Notified and Designated Organisations): https://ec.europa.eu/nando

Komsol® – Building Protection for the Next Generation

Permanent. Non-toxic. Certified under the world’s highest standards.

For more than 40 years, Komsol® has developed and delivered advanced concrete protection technologies based on science — not marketing.
Our leading product, Komsol®SEAL, represents a new generation of concrete treatment: a permanent, non-toxic, mineral solution that protects structures from within.

Unlike coatings, membranes or chemical additives, Komsol®SEAL does not form a surface layer. It penetrates deep into the concrete matrix (up to 200 mm) and reacts chemically with free lime (Ca(OH)₂) to create new calcium silicate hydrate (C–S–H) crystals — the same mineral that gives concrete its strength and durability.

This internal crystallization process permanently seals microcracks and capillaries, while keeping the surface vapor-open (diffusion-permeable). The result is concrete that breathes — but no longer absorbs water, salts, or chemicals.

Permanent protection – not a temporary coating

Conventional waterproofing products — such as polyurea, polyurethane, epoxy, or bitumen membranes — are based on plastics and solvents.
They may block water for a few years, but they inevitably degrade, peel, and fail due to heat, UV radiation, or surface movement.

When this happens, water gets trapped beneath the coating, accelerating reinforcement corrosion and internal concrete decay.
Every reapplication adds more toxic waste and cost — an endless cycle that damages both the building and the environment.

Komsol®SEAL breaks this cycle.
It becomes part of the concrete itself and never needs reapplication.
It does not age, peel, or emit toxic substances — because it is purely mineral and water-based.

Toxic coatings: a global health concern

Independent studies and recent court cases have confirmed what many in the industry long suspected:
chemical coatings used in so-called “waterproofing” are dangerous to health.

A 2024 U.S. Supreme Court case ordered BASF, one of the world’s largest chemical companies, to pay 150 million USD in damages after epoxy coatings in a school caused neurological and brain injuries in children and staff.

These coatings contain isocyanates, amine hardeners, bisphenol A (BPA), and VOCs — substances known to cause cancer, respiratory disease, hormonal disruption, and long-term organ damage.
As they degrade under heat and UV radiation, they release micro- and nanoplastics that contaminate air, soil, and groundwater.

Every square meter of aging polyurethane or epoxy can release hundreds of thousands of plastic particles per year, now recognized as a major source of microplastic pollution worldwide.

In a region like the Gulf, where desalinated water and saline air already stress the ecosystem, using such materials is not just unsustainable — it is irresponsible.

Komsol®SEAL – 100 % non-toxic, sustainable, and safe

Komsol®SEAL contains no solvents, no VOCs, no polymers, no resins, and no microplastics.
It is completely inert after reaction and classified as environmentally neutral.

Its chemical composition is based on stabilized colloidal silica — a natural mineral that reacts only inside the concrete, forming new C–S–H structures without any harmful by-products.

Komsol®SEAL is certified for drinking water contact according to:

• DIN EN ISO 12873-2:2022 (migration test for potable water)
• EN 1504-2 System 2+ (surface protection systems for concrete)
• EN 1504-8 and -9 (control and evaluation of durability)
• GREEN² certification for nuclear safety environments
• Spanish Royal Decree 3/2023 (chemical safety in water infrastructure)

These independent certifications guarantee that Komsol®SEAL can be safely used in nuclear power plants, wastewater facilities, water tanks, and potable water structures — anywhere absolute purity and long-term stability are required.

How it works

1. Penetration – Komsol®SEAL enters the pore system of the concrete through capillary suction and diffusion.
2. Reaction – It reacts with Ca(OH)₂ and moisture to form additional C–S–H, permanently filling voids and sealing microcracks.
3. Densification – The surface and subsurface zones become denser and harder, increasing abrasion resistance by up to 63 % (as confirmed by RISE Tests Sweden).
4. Breathability – The concrete remains vapor-permeable, eliminating blistering and surface delamination.
5. Self-healing – When new moisture appears, the reaction reactivates, closing new microcracks automatically.

Applications

Komsol®SEAL is suitable for:

• Roof slabs, facades, and exposed concrete surfaces
• Foundations, basements, and retaining walls
• Water tanks, reservoirs, and wastewater plants
• Parking decks and industrial floors
• Bridges, tunnels, ports, and marine structures
• Heritage buildings and concrete restoration projects

It is compatible with all cementitious materials including concrete, mortar, brick, and natural stone.

🛡️ Comparison

Legal and regulatory compliance

Under EU Regulation 305/2011 (Construction Products Regulation) and the EU Treaty Article 34 AEUV,
Komsol®SEAL is classified as a surface protection system for concrete under EN 1504-2 System 2+.
Its conformity has been verified by accredited European laboratories and notified bodies.

Any national approval requirements conflicting with CE marking (such as “aBG” in Germany) are not applicable under EU law, according to European Court of Justice rulings C-100/13, C-613/14, C-171/11.

This means that Komsol®SEAL is fully recognized as compliant and legally marketable across the entire European Union — and its certification standards exceed most requirements worldwide.

Why it matters for Qatar and the Gulf region

The majority of concrete structures in Qatar were produced using mixed saline and freshwater, leading to internal chloride contamination and premature corrosion.
Surface coatings cannot fix this — they only hide the problem.

Komsol®SEAL penetrates into these weak structures, binds the free lime, and blocks chloride migration permanently.
It is therefore the only practical long-term solution for Qatar’s aging concrete infrastructure.

It also provides an ethical and environmental answer: protecting both the structure and the people who live and work within it — without poisoning the environment.

Komsol® – Science. Integrity. Sustainability.

Our mission is to replace outdated, toxic waterproofing methods with a permanent, non-toxic, scientifically proven alternative.
For every engineer, architect, or public authority that values safety and responsibility, Komsol®SEAL represents not just a product, but a commitment to the future.

Because true protection is not only about keeping water out —
it’s about keeping people and nature safe.

Contact:

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Komsol Group

Senior President Toni Schonfelder  Email  ts@komsol.eu  

Deep penetrating concrete sealer &  protection & waterproofing.DIN 1504-2 & 1504-8, System 2+ certified, CE, ECO friendly 0% VOC, No PFAS, No Microplastic
cerified for use with drinking water DIN ISO 12873-2:2022 For Spain RD3/2023 and Germany TrinkwV

Der einzigartige Schutz von Beton ohne Gifte – Schütz gegen allen Säuren, Verstärkt den beton und Erhöht den Abrieb mit 63%  -Frotssicher – Erfüllt DIBT TR2020 Anforderung Oberflächenschutz

Sweden office    + 46 (0) 31 301 70 30
Spain Mobil       + 34 616 421 085
WhatsAp            +49 172 134 24 74
Germany Mobil   +49 (0) 172 134 24 74

Other web: Europe & World wide www.komsol.eu  Germany www.komsol.de
Sweden www.komsol.com Spain www.komsol.es  
  
TECHNICAL DOCUMENTATION https://www.komsol.com/en/documentation.html