A na-ejikarị akpụkpọ anụ na-ekpuchi mmiri na mgbidi ụlọ, elu ụlọ, na tunnels, okporo ụzọ, landfills, wdg, iji guzogide mmiri ozuzo mpụga, mmiri mmiri nke ala nke ngwaahịa ihe ụlọ na-agbanwe agbanwe nke nwere ike ịkụda n'ime olu, dị ka ntọala nke oru ngo na enweghị ntanye n'etiti njikọ ụlọ, bụ ihe mgbochi mbụ maka ọrụ ahụ dum waterproofing, na-arụ ọrụ dị mkpa na ọrụ ahụ dum. Ihe mejupụtara ya bụ rọba sịntetik ma ọ bụ resin sịntetik.

Nkwanye: TER 4334;CO 054;3062E;S537-2;S501A;S537-3;S5890F;