Combat CDO Biocide

Algicidal and Fungicidal for Dry-Film Protection of Coatings and Plasters

General

Combat CDO Biocide is a dry film preservative for use in plasters, paints and wood coatings where permanent dry film protection is required on external surfaces subjected to severe weathering and on internal surfaces where high humidity is encountered.

COMBAT CDO is a fluid, pumpable dispersion of active ingredients which is easy to handle, meter and incorporate into aqueous based systems and which provides a very broad spectrum of activity against fungi and algae.

COMBAT CDO is primarily designed for use in water-based systems; however, it can be incorporated into solvent-based systems where it is compatible with the final product and packaging.

Typical properties

Miscibility/Solubility

Miscible with water, immiscible with water insoluble solvents. Practically insoluble in water

and organic solvents.

Stability

The activity will not be affected by short periods of temperatures up to 100°C during manufacturing, or by pH in the range 4 - 10.

Application

COMBAT CDO Biocide is particularly suited to provide, at an optimized cost performance, algicidal and fungicidal protection to the coated exterior surfaces of buildings, which are subjected to severe weathering conditions. Such surfaces are often covered with dirt consisting of airborne particles of substances like soot from industry and internal combustion engines, soil and fertilizer from agriculture, pollen and other airborne debris. This dirt serves as substrate for microorganisms which have relatively modest demands.

COMBAT CDO has two modes of action to protect plasters and paints. Firstly, it prevents the plaster or paint from serving as the substrate for contaminating microorganisms. Secondly, when the surface becomes wet through rain or condensation the controlled diffusion of the active ingredients into the wet phase occurs preventing the growth of microorganisms on the dirty surface layer.

Dosage

The optimum dosage depends largely upon the amount of dirt to be expected on untreated surfaces and the potential of the local environment to contaminate the treated surface.

It will also be dependent on the susceptibility of the coating to fungal and algal growth. The bioactive substances in COMBAT CDO are irreversibly consumed in the prevention of growth of microorganisms, and hence a reliable estimate of the expected level of contamination is very important.

General guidance

Plasters and fillers: .............................................................................................. 0.2 - 1.0%

Coatings .............................................................................................................. 0.5 - 3.0%

In cases of exposure to extreme weather conditions or if the coating is subjected to continuous condensation or to rapid contamination with surface dirt, the dosage of Combat CDO may have to be increased above the usual levels.

Handling

For product safety information, please refer to the Safety Data Sheet (SDS) of this product for precise handling instructions.The processing and use of industrial chemicals requires adequate technical and professional knowledge.

In general, avoid eye and skin contact, wear safety goggles, gloves and protective clothing.

Storage and package

25 kg or 200 kg or 1000KG drums

Store products in tightly closed original containers at temperatures recommended on the product label.

Declaration

These suggestions and data are based on information we believe to be reliable. They are offered in good faith, but without guarantee, as conditions and methods of use of our products are beyond our control. We recommend that the prospective user determine the suitability of our materials and suggestions before adopting them on a commercial scale.