One alternative, which is particularly popular with planners and manufacturers of precast concrete products, is called acid etching. The result is a natural stone-like appearance, texture, and surface that is hardly recognizable as concrete. And this is how it works: first you produce a smooth concrete surface (structured formwork is also possible). After removing the formwork, the surface of the concrete is primed by saturation with water, and then the application of Acid Gel, which is a special acid gel. The materials used have an acidic pH value and react with alkaline cement near the surface. This causes a neutralization and thus a thin, micro layer can be removed from the surface of the concrete by water pressure and the sand/aggregate matrix beneath the concrete surface is uniformly exposed, giving the concrete surface a special appearance. The depth of this acidification is approx. 0.3 mm and thus more accurate than results that can be achieved for example by sand blasting
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Apply Acid Gel with a sprayer or brush to a wet concrete surface.
Let the Acid Gel react.
Clean the surface with water. Reapply if necessary.
Ready.
Made in Germany
Acid etched concrete surfaces have the following advantages:
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Looks and feels like natural stone.
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عدم الانزلاق ، لأنه يمكن إنتاج خشونة متزايدة بهذه الطريقة ، على سبيل المثال للخطوات Prefabricated concrete or paving slabs.
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خصائص سطح خالية من الصيانة على المدى الطويل ، حيث يمكن العثور على الركام المتين Mainly on the surface and less of the cement (ratio approximately: 60:40).
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تعتبر الأسطح الخرسانية المحفورة بالأحماض بديلاً عن السفع الرملي وتعطي "مظهرًا" مختلفًا ، It is often considered more beautiful.
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تعتبر الأسطح الخرسانية المحفورة بالحمض بديلاً عن الأسطح الخرسانية الملساء ذات الوجه العادل ، لأنه It is easier to achieve uniformity of the color of the concrete surface.
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Acid-etched concrete surfaces are an alternative to natural stone panels, because larger sizes are possible in concrete wall panels, for example precast.
Acid etching HEABU MICROGEL
Hebau MICROGEL LION
Interesting fact
Using Acid Gel and various stencils, you can create labels, logos and graphic images of brands on the surface of precast concrete items. All you need to do is prepare a self-adhesive stencil with the appropriate image, fix it in the right place on the concrete, moisten the surface and treat the exposed parts with Acid Gel
The thin cement surface will be removed with a gel, thus exposing the aggregate texture and forming a pattern.
This technology allows you to implement unique creative projects with minimal time and effort.