HERMES AlkaliStar

The universal cleaning agent to tackle atmospheric dirt

In addition to organic soiling, soot, tyre abrasion and road dust are often a problem, especially for inner-city buildings or industrial areas. Standard cleaning agents quickly reach their limits when faced with such stubborn dirt. But with our alkaline universal cleaning agent AlkaliStar, we can effectively tackle grease, carbon and soot. Despite its formidable cleaning power, the cleaning agent is nevertheless gentle to sensitive components such as anodised aluminium thanks to the corrosion inhibitors it contains. The ideal addition to your façade cleaning portfolio.

Note: We sell our products exclusively to traders.

Various Variations

Size 20 l 60 l 200 l
Ready-to-use cleaning solution
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From our own research and development department

“For professional façade cleaning, it is essential that the cleaning agents used are perfectly suited to one another and, together with the cleaning technology, form an ideal system. To ensure this, we at HERMES manufacture our own cleaning agents. Our research and development department produces efficient cleaning agents for our HERMES system. In doing so, we focus on continuous product improvement in order to make them even more effective, economical and versatile. So our quality partners can always be sure they are using the best possible cleaning agent for their façade cleaning company.”

Dr. rer. nat. Daniel Jaspers
Head of Chemical Development

Important notes


Through the optimal combination of washing substances, complexing agents and corrosion inhibitors, our universal cleaning agent AlkaliStar is simultaneously effective against atmospheric soiling, yet gentle on sensitive materials.

Cleaning performance

New contamination cannot be prevented, but can be delayed. As the perfect complement to cleaning with HERMES®çade so quickly. The length of time the results will hold is influenced by a number of factors, which we show you here.

Safety notes

For the environment:
All constituents of AlkaliStar are biodegradable and pose no threat to the environment.

For people:
If handled improperly, direct contact with Alkali star concentrate may cause skin irritation. However, the affected person would have had to be exposed to the product in large quantities for a prolonged period of time. Spray mist in the eye or on the skin is unpleasant, but should not cause concern in small amounts. If a direct concentrated stream gets into the eye, however, flushing measures are urgently required. Since users come into daily contact with cleaning agents, they should all use personal protective equipment (suitable work clothing, protective goggles, protective gloves and mouth protection if necessary). This is not necessary for residents or passers-by.

Application notes

When using the product, please note the particularly fast reaction time, which should not be exceeded. Metal or sheet metal façades take 5–10 minutes, plaster façades 15–30 minutes.

More HERMES cleaning agents

Fassadenrein HF1 plus

HERMES Fassadenrein HF1 plus is an effective cleaning solution for removing stubborn organic dirt from façades.


HF1 plus visibly and rapidly removes organic dirt from the façade. During cleaning, special ingredients help to protect façade elements made of aluminium, copper and galvanised steel from being corroded by the cleaning agent. The handling, transport and storage is straightforward, as HF1 plus is specially designed for façade cleaning work. Subsequent after-treatment with HERMES® Fassadenschutz HFS achieves a long-lasting cleaning effect.

HF1 plus is suitable for the following materials:

Plaster (mineral, organic and painted), concrete, clinker, brick, sand-lime brick, natural stone, fibre cement (asbestos-free only!), roof tiles of various types.

(The application of HF1 plus has no influence on any subsequent paint coat to be applied).

Ready-to-use cleaning solution:

Article number: 1010020
HERMES Fassadenrein - HF1 plus - 20 l

Article number: 1010060
HERMES Fassadenrein - HF1 plus - 60 l

Article number: 1010200
HERMES Fassadenrein - HF1 plus - 200 l

Article number: 1010640
HERMES Fassadenrein - HF1 plus - 640 l

Article number: 1011000
HERMES Fassadenrein - HF1 plus - 1.000 l


Article number: 1510020
HERMES Fassadenrein - HF1 plus-5 - 20 l

Fassadenschutz HFS

HERMES Fassadenschutz HFS is a disinfecting protective solution for the prevention of algae and mould growth. (Use protective agents for building materials carefully and sparingly. Always read the label and product information before use.)


This antimicrobial protective solution adheres to the façade and penetrates deep into the pores. It effectively inhibits renewed infestation of algae and mould and thus ensures long-lasting protection. HERMES Fassadenschutz HFS should be applied directly after cleaning with HERMES Fassadenrein HF1 plus.

HFS is suitable for all façade materials.

(The application of HFS has no influence on any subsequent paint coat to be applied).

Ready-to-use cleaning solution:

Article number: 1020020
HERMES Fassadenschutz - HFS - 20 l

Article number: 1020060
HERMES Fassadenschutz - HFS - 60 l

Article number: 1020200
HERMES Fassadenschutz - HFS - 200 l

Article number: 1020640
HERMES Fassadenschutz - HFS - 640 l

Article number: 1021000
HERMES Fassadenschutz - HFS - 1.000 l


Article number: 1520020
HERMES Fassadenschutz - HFS-5 - 20 l

SteinSauer extra

HERMES SteinSauer extra is a very effective, strongly acidic stone cleaning agent concentrate for all acid-resistant surfaces.


The cleaning agent effectively clears stone surfaces of the encrusted dirt caused by atmospheric influences and weathering and can thus remove deep-seated dirt.

SteinSauer extra is suitable for the following materials:

Acid-resistant materials such as solid clinker bricks, bricks and paving stones.

Article number: 1040020
HERMES SteinSauer extra – 20 l