PROBLEM

mab1On the porous surfaces are often present biological manifestations due to living organisms that develop on the surface, after that this has already undergone a degradation process derived from its exposure to the environment. Agents and pollutants present in the atmosphere, cause an increase in the porosity of the materials, with formation of roughness, cracks, accumulation of dirt and atmospheric particulate. After this first phase of alteration, some biological form of various organisms can appear: their reproductive spores and seeds can be anchored on surfaces, where they develop and multiply. This phase of their biological cycle induces the phenomena of alteration of the stone surface, transforming simple biological pollutants of the air into “biodeteriogens”.
The most common groupings of such biodeteriogens are: Algae – Lichens – Musks – Molds

Cause

Among the conditions that favor biodeterioration we can mention: the humidity rate above the norm; the environmental thermohigrometric regime; the formations of mineral salts present in the materials; the nature of some organic substances applied to materials, originally or undergoing restoration. The phenomenon of aggression and the mechanism of alteration produced by the various organisms are in function of: type of porous material; environmental exposure conditions; state of conservation of the surface (the lack of correct conservative care is evidenced by the presence of biodeteriogens).

SOLUTION
MAB2

The complete removal of the biodeteriogens present and the sanitization of the surfaces must be carried out. For this type of intervention the need is to apply methods that are effective against biodeteriogens, but at the same time have no interactions with the substrates, such as yellowing, increase in brightness or opacification of the surface. Quaternary ammonium salts are the most widely used products. They constitute a group of very widespread substances in the sector, as they combine a low-level toxicity with a broad spectrum of action, as well as a deep cleaner action. The conservative intervention also includes the measures useful to delay their reappearance, through the use of specific formulations that create conditions on the outer layer of the material that are inhospitable to the growth of micro-organisms. Requirements necessary in this area of application:

  • High efficacy against biodeteriogens
  • Absence of interference with the constituent materials
  • Low toxicity to human health
  • Low risk of environmental pollution

 

How to apply

BIO PT 15

brush spray roller

N. AG PLUS

brush spray

BIO T PLUS

brush spray

BIO C

brush spray

INTERVENTION CYCLE

  • Application of BIO C and BIO T PLUS on surfaces infested by microorganisms
  • Wait 24 – 48 hours
  • Proceed with the removal of microorganisms by brushing or rinsing
  • To prevent the formation of Biodeteriogens, apply BIO T PLUS again
  • Then proceed with application of the specific protective or finishing BIO PT 15 or N. AG PLUS
ADVANTAGES OF CIR SOLUTION
The solution proposed by CIR allows to act on a wide spectrum on microorganisms, in a selective way, without causing damage to the material or interactions with biodeteriogens. The ready-to-use formulations minimizes the risks of mixing the various active ingredients on site, which would require expert dexterity and specific tools. The SOLUTION proposed by CIR have the following advantages:

  • RESPECTS THE TREATED MATERIALS
  • DOES NOT CAUSE COLOR CHANGES OF MICROORGANISMS
  • IT IS NOT HARMFUL EITHER FOR OPERATORS AND ENVIRONMENT
  • THEY INTEGRATE WITH EACH OTHER IN ORDER TO ALLOW
    WIDE-RANGING INTERVENTIONS ON MULTIPLE CASES
THE TECHNICIAN RECOMENDS
The cleaning operations to eliminate microorganisms must precede any type of processing or other cleaning; it is important to avoid brushing and sanding before applying the products formulated against biodeteriogens.

Contact us for advice or free inspection: ufficiotecnico@circhimica.it