Abstract
The fungal contamination on the surface of the PC tank was studied. The predominant fungi were species of Cladosporium cladosporioides, Penicillium funiculosum, Trichoderma viride, Fusariam moniliforme, Aureobasidium pullulans, Aspergillus, niger and Rhisopus nigricans. The designation of new paintig material not suscepible for fungus growth when coating on the surface of PC tank for long period of time was studied.