CleanTop® Steinschutz von METTEN Stein+Design

CleanTop® References.

CleanTop used on very high-traffic surfaces in public spaces leads to a noticeable reduction in maintenance costs due to the reduced cleaning requirement. The CleanTop system has excellent tried and tested results, not only in Germany and other European countries, but also in the USA and Canada. Metten Stein+Design started development of this technology for protecting the surfaces of concrete paving stones more than 10 years ago.

Unlike the conventional processes of subsequent sealing or impregnation, the CleanTop system is part of the production process and as a result integrated into the concrete stone. Colours and surfaces are permanently refined and protected by CleanTop. CleanTop counteracts the signs of wear and tear through the effects of weather and makes the stone surfaces resistant to ageing. Unlike common impregnation treatments, no later top-up treatment is required - CleanTop provides permanent protection.

Düsseldorf, Germany

The Kölner Straße street in Düsseldorf has been paved with Belpasso® slabs, with La Linia slabs immediately adjacent. After approximately one and a half years of practical experience, Rolf Sander, engineer, Head of the Department for New Road Construction at the Office for Traffic Management of the city of Düsseldorf, had this to say regarding the cleaning quality of Belpasso®: “All of the surfaces of Kölner Straße are cleaned once daily as standard with the same method of a road-sweeping machine and water. It has been found that the CleanTop®surface of the Belpasso® paving slabs gets cleaner, whereas on the remaining non-protected surfaces the dirt often remains adhered and is not removed by sweeping.”


* Now the La Linia paver is supplied with CleanTop®surface as standard.

Kölner Straße Düsseldorf

Düsseldorf, Kölner Straße, Belpasso Grigio.

Rijswijk, Netherlands

Rob Doesburg, planner and director for constructions of the city of Rijswijk, Netherlands, about Belpasso Premio:

“The place before the library has a fresh radiance even after half a year. Dirt accumulations have less visible effect on the surface compared to traditional paver surfaces. This also applies to the dirtying through chewing gum, which is relatively easy to remove.”

Netherlands: Rijswijk. Belpasso Premio paving Nuvola and Grigio.

Survey report Prof. Dr.-Ing. Martin Radenberg

Prof. Dr.-Ing. Martin Radenberg, Professor of Traffic Route Engineering at the Ruhr University, Bochum

Survey report for the city of Ratingen:

“In terms of the inputs for the cleaning of paving stones and slabs, among the tested paving elements the Belpasso Premio® paver has a significantly higher dirt resistance. For this paver, a clearly lower input in time and money is to be anticipated for the cleaning.”

Eindhoven, Netherlands

Wil van Schijndel
Stadtplaner Stadt Eindhoven:

“Currently the normally UV-light sensitive colours of green and blue are the basis of this flooring design. Neither residues nor stains must affect the colour quality. Belpasso Premio has therefore been found to be the perfectly suitable paving method, with long-term colour intensity and easy to clean – even for chewing gum.”

City railway Rhein-Ruhr, Duisburg

Comments and user experience on “Belpasso® Premio paving” and "CleanTop®" by Jörg Husarek, Dipl.-Ing. Architect AKNW:

"The platforms of ÖPNV stations are known to be subjected to high requirements by its users. Tenacious stains through chewing gum, drinks (e.g. cola, etc.) are a normal case, but there are very little funds for the cleaning and maintenance.

To preserve these surfaces in a well-kept and attractive condition, the requirement on the quality of the paving material is extremely high.

The platforms of the Duisburg city railway station “St.-Anna-Krankenhaus” were paved with “Belpasso® Premio pavers” in the “Grigio” colour, interspersed with pavers in “Pesto” colour for variety of surface and a colourful accent.

The material precisely fit my aesthetic and creative ideas on the surface structure, colour selection and format.

The technical requirements such as tread safety, mechanical resilience, easy cleaning and low maintenance features were also fulfilled according to the manufacturer’s specifications.

After nearly two years of use – inauguration was in early February 2005 – the platforms are in flawless condition, wears of use almost unrecognisable.

As the paving surfaces are naturally weathered, the platforms are thoroughly cleaned only once a year. In the process the paving is pre-treated with cleansing foam and subsequently given a high-pressure wash with cold water.

Dirt does not penetrate – due to the “CleanTop®” surface – the paver and can be simply rinsed. Even the problematic, strongly adhesive chewing gum is easily removed by the pressure cleaning."

Stadtbahn Rhein-Ruhr Duisburg

Covered platform,
not cleaned for 2 years

Reiniger aufsprühen

Spray cleaner

Fläche abspritzen

Spray-washing surface

Saubere Fläche nach Reinigung

Clean surface



„Neulich war ich bei einem Kunden, bei dem vor 12 Jahren Pallas-Platten auf der Terrasse verlegt wurden. Auch nach dieser langen Zeit lassen sich die Platten einfach reinigen und sehen hervorragend aus. Deshalb empfehle ich auch weiterhin meinen Kunden die mit CleanTop®geschützten Platten von METTEN.“

Joachim Steen GmbH
Garten- und Landschaftsbau