★Ọwara - nkwado njikọ eriri igwe na akụkụ PP kwadoro.
★Ọnụ ụzọ akpaaka - nkwado nchara nwere ihe nkwado etinyere na FRP.
★Njikwa akpaaka nke ọnụ ụzọ dịpụrụ adịpụ n'ime ọwara ahụ.
★Arụ ọrụ nke ikuku alụlụ elu acid na-emepụta nrụgide na-adịghị mma n'ime ọwara ahụ, alụlụ acid na-emepụta site na ịsacha acid dị n'ime oghere ahụ ma ọ gaghị ekwe omume ka alụlụ acid gbapụ na ọwara ahụ.
★Ụlọ ọrụ mmepụta ihe na-enweghị alụlụ acid, na-echebe ngwá ọrụ na nhazi ụlọ.
★Top na mgbochi corrosion ọkụ;
★Njikwa nrụgide na-adịghị mma.
★N'elu ọwara na ogologo akara akara (PP na-agbanwe mpempe akwụkwọ);
★A na-ekewa ọwara ahụ n'ọtụtụ mpaghara usoro site na ọnụ ụzọ akpaaka na-ebili na daa.
★Akụkụ mpụta nke ọwara ahụ nwere mpụta alụlụ acid, jikọtara ya na ọwa mmiri alụlụ acid;
★Window nleba anya n'akụkụ ọwara n'elu arụ ọrụ.