Innovative surface treatment for stainless steel.
ViwateQ® is an advanced surface treatment for stainless steel (Inox) that makes the material smoother, more hygienic, and more durable. Unlike traditional methods such as pickling and passivation, which often rely on chemical agents, ViwateQ® works completely without chemicals.
The treatment smooths stainless steel at a microscopic level, making it much harder for dirt, bacteria, and product residues to adhere. With ViwateQ®, stainless steel lasts longer, is easier to clean, and complies with the strictest hygiene requirements.
The process is based on water under extremely high pressure. During the treatment, the stainless steel surface is refined so that small irregularities disappear. The result is a micro-smooth surface without altering the material properties.
Preparation – the stainless steel is thoroughly cleaned and prepared.
ViwateQ® treatment – high-pressure water removes microscopic roughness.
Result – a smooth, hygienic surface without the use of chemicals.
ViwateQ® offers many advantages and is often preferred over other, more traditional methods. Some key benefits include:
More hygienic: bacteria, fungi, and dirt adhere less easily.
Durable: longer lifespan of installations and equipment.
Environmentally friendly: no chemicals or hazardous waste.
Cost-saving: less maintenance and fewer cleaning agents required.
Consistent quality: stainless steel retains its strength and appearance.
ViwateQ® has been extensively tested in independent studies.
A study by Burggraaf & Partners B.V. showed that ViwateQ® outperformed other surface treatments in terms of corrosion resistance. In a salt spray test according to ISO 9227 (400 hours exposure to a 5% NaCl solution) and a pitting corrosion test at 60°C, ViwateQ® delivered the best results. Especially around weld seams – often the most vulnerable spots for corrosion – ViwateQ® proved superior compared to chemical pickling, electrolytic polishing, or glass bead blasting. This demonstrates its strong protection against pitting corrosion.
In 2010, TNO investigated the cleanability of stainless steel surfaces treated with various methods. ViwateQ®-treated stainless steel scored best in this, even at the microbiological level. TNO concluded that surface smoothness (measured via the SRI value, Surface Roughness Index) with ViwateQ® was significantly better than with other methods such as electropolishing. This leaves less protein or bacterial contamination, which is essential for sectors such as the food and pharmaceutical industries.
In addition to laboratory tests, practical experience shows that ViwateQ® ensures:
Faster cleaning – less cleaning time and fewer cleaning agents required.
Lower maintenance costs – due to less dirt adhesion and improved corrosion resistance.
Environmental benefits – no aggressive chemicals are used.
It should be noted, however, that ViwateQ® cannot remove deep scratches or contamination from foreign iron. Therefore, stainless steel should be carefully processed beforehand. In a well-organized production environment, ViwateQ® can therefore be the best finishing method available.
ViwateQ® is used in industries where hygiene and durability are essential:
Food industry – dairy, meat processing, breweries, and bakeries.
Pharmaceutical industry – laboratories and production lines requiring sterile conditions.
Medical sector – instruments and equipment demanding absolute hygiene.
High-tech machinery – machines and components where precision and durability are critical.
Is ViwateQ® better than pickling or passivation?
Yes. Research shows that ViwateQ® provides better results in both corrosion resistance and cleanability compared to chemical treatments.
Can any stainless steel surface be treated?
In principle, yes, as long as it is stainless steel. If in doubt, a specialist can provide advice.
How much does a ViwateQ® treatment cost?
The costs depend on the size and complexity of the object. Since maintenance costs are reduced, ViwateQ® is often more cost-effective in the long run. Van Geenen offers ViwateQ® Finishing in various price ranges. Contact our experts for a quotation.
Is ViwateQ® environmentally friendly?
Yes, no chemicals are used and no harmful waste is generated.
Does stainless steel look different after ViwateQ®?
Yes, the surface appears smoother and more uniform, but it retains its natural appearance. Weld seams and small irregularities are refined during the treatment, resulting in a sleek finish.
ViwateQ® is the innovative method for making stainless steel more durable, hygienic, and easier to maintain. Independent research shows that ViwateQ® offers the best corrosion resistance and cleanability compared to existing techniques. The process is safe, environmentally friendly, and suitable for a wide range of industries where strict hygiene standards apply.
Do you want to know if ViwateQ® is suitable for your application? Contact our specialists for free advice.
