With MICROGEL®, HEBAU offers you an innovative acid-etching system that refines concrete surfaces with precision. By removing only a micro-thin surface layer (approx. 0.3 mm), the natural sand and aggregate matrix is revealed, creating a uniform, elegant look.
Unlike sandblasting, MICROGEL® works gently, sustainably, and efficiently – ideal for architectural concrete, precast elements, and design applications.
With five product versions available and expert consulting support, you can rely on HEBAU for tailor-made solutions, consistent results, and long-lasting surface beauty.
Beautify concrete - with a very special peeling

All versions of MICROGEL® have an acidic pH-value and react with the surface-near alkaline cement, which leads to a neutralisation of a micro-thin layer of the concrete surface which can then be removed with water-pressure.
As a result the sand/aggregate matrix underneath the concrete skin is revealed uniformly, giving the concrete surface a special look.
The etch depth of this acidification is approx. 0.3 mm and is therefore much less than the results that can be achieved by sand blasting for instance.

Apply MICROGEL® with a sprayer or brush onto a wet concrete surface.

Let MICROGEL® react.

Clean surface with water.

Mission accomplished:
elegant acid-etched concrete surface
We offer 5 MICROGEL® versions to meet individual application requirements.
Our technical consultants provide examples of suitable concrete-mix designs, give advice on the dos and don’ts, offer support during testing with samples, can give seminars to your staff.
Good to know - The water used for the acid etching process usually does not usually require any special treatment.