HERMES Fassadenrein
HF1 plus

The Facade Cleaner to tackle organic dirt

Flawless façade cleaning requires a cleaning agent that is tough on dirt and gentle on the material. HERMES Fassadenrein HF1 plus was specially developed for the demands of façade cleaning and is able to rid house façades of unattractive discolouration without damaging the substrate – regardless of whether it is plaster, concrete, clinker, bricks, sand-lime bricks, natural stone, roof tiles of any kind or asbestos-free fibre cement. Our façade cleaner HF1 plus works so quickly that you can use a test surface to immediately impress your customers with the cleaning performance.

Note: We sell our products exclusively to traders.

Various Variations

Size 20 l 60 l 200 l 640 l 1.000 l
HF1 plus
Ready-to-use cleaning solution
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HF1 plus-5
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A perfect match: HERMES Antimuff

Our façade cleaner HF1 plus is a cleaning agent based on active chlorine. So as you would expect, the typical “swimming pool smell” occurs during application. If you want to avoid this, use HERMES Antimuff and replace the smell of chlorine with lavender or mint. Order HERMES Antimuff now!

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

Cleaning performance

Even with such an effective cleaning agent as our façade cleaner HF1 plus, renewed soiling cannot, of course, be ruled out. Due to our pore-deep cleaning performance in connection with the application of HERMES® Fassadenschutz HFS, the house façade usually remains clean for approx. three to five years. 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:
Like any professional cleaning agent, the use of HF1 plus should be left to the specialists. Such specialist companies should always collect the façade waste water when carrying out façade cleaning work. This is the only way to ensure environmentally friendly cleaning. HF1 plus was developed for the large-scale treatment of façades and accordingly the ingredients are in such low concentrations that, even in the worst case, no danger to the environment is to be expected. The agent quickly decomposes into water, oxygen and common salt in the soil. Even if small quantities of HF1 plus reach plants or objects (e.g. by spray mist), there is no threat of long-term damage. The employees of the cleaning company ensure that green areas, bushes and vegetable gardens are watered before cleaning and again after and covered with tarpaulins.

For people:
If handled improperly, direct contact with HF1 plus 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 (e.g. in a case where heavily saturated trousers clung tightly to skin for more than two hours). 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. Having worked with HF1 plus for many years, we have not become aware of any case of the skin and/or eye health of our users or residents being damaged. 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. The "chlorine odour" that sometimes occurs during cleaning is not harmful in this respect, as there is naturally very good ventilation outdoors. Not least because of this, windows must stay closed during cleaning so that the smell does not penetrate into the interior. If you smell the odour in the house, it will only be in a very low concentration (comparable to a swimming pool, since the odour threshold is very low). The user usually uses a fragrance to cover the unpleasant odour. The "chlorine smell" is related to the dirt on the façade. The higher the degree of soiling, the more intensive the perceived odour.

Application notes

In rare cases, it may be that despite a successfully applied test surface, the soiling in other places is much more stubborn and therefore cannot be removed 100 percent. Also make sure to mask sensitive metal elements before application, as slight damage may occur despite corrosion inhibitors. Normally, however, this slight damage can also be removed by careful polishing.

After façade cleaning with HF1 plus, our cleaning agent has no negative influence on a possible new coating.

More HERMES cleaning agents

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


HERMES AlkaliStar is an alkaline universal cleaning agent concentrate with a strong solvent action against oily, greasy and sooty soiling.


AlkaliStar effectively dissolves atmospheric soiling adhering to façades, such as road dust and tyre abrasion. Special corrosion inhibitors ensure high material compatibility with sensitive components such as anodised aluminium, for example. AlkaliStar can also be used for car washing and for cleaning workshop and industrial floors.

Alkali star is suitable for the following materials:

Façade materials of all kinds, plastics, motor vehicles and metal surfaces.

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

Ready-to-use cleaning solution:

Article number: 1030020
HERMES AlkaliStar - 20 l

Article number: 1030060
HERMES AlkaliStar - 60 l

Article number: 1030200
HERMES AlkaliStar - 200 l


Article number: 1530020
HERMES AlkaliStar-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