Lichen is the most difficult affective growth to get rid of and grows foremost on stone, concrete, bricks, slate and eternit. It grows slowly and the roots get into the surface pores. Lichen is very resistant and can endure extreme drought during long time.

Lichen consists of one kind of alga and one kind of fungus. The alga can even survive in dry environments. The fungus gives protection and fetches water. The alga promotes energy. A typical lichen consists of fungus tissue and an alga stratum -which is interwoven by the fungus
threads [mycelia]. Below this is the marrow, which is a spongy layer of fungus hyf. The final part is the "under bark", where the root sprouts emanates, which attaches the lichen to the surface.


Lichen usually grows on bare surfaces as stone, wood, bark and ground, but can grow together with moss. Stone living lichen breaks down the stone to gets access to minerals. Lichen does not break down wood and other organic materials.

Sexual multiplication happens when fungus spores lands near a suitable alga. Asexual multiplication happens when lichen parts breaks off and establishes itself where it lands, through powdery bodies that is distributes by wind or with water, and through hard outgrowths that are broken off and spread by animals.


It is not enough to clean or to mechanical remove the affective growth and assail –the surfaces must be sanitized.

Afterwards the material easily can be maintained and treated –without risk of new affective growth. Without risks for damages, maintenance and costs. Without problems. Without affective growth.

Bensaltenside sterilizes all affective growth and disinfects all surfaces –they become totally clean. Both on the surface and in the pores. The treatment reaches full effect in 24 hours –then all assails are killed off. Thereafter the surface is guaranteed to be protected for a minimum of 4 years.

Repeated treatments –or by mix Bensaltensid in to paint or mortar- lengthens the protection time with several years.
Outdoors rain gradually removes Bensaltenside – on roofs it takes about one year and on walls two. You can even clean, brush or rinse off the remains.

It can not be easier. Not better. Not cheaper.