Ipleyiti yentsimbi engatyiwa ligama eliqhelekileyo lepleyiti yentsimbi engatyiwayo kunye nepleyiti yentsimbi ekwaziyo ukumelana neasidi.Ipleyiti yensimbi engenasici inomgangatho ogudileyo, iplastiki ephezulu, ukuqina kunye namandla omatshini, kwaye iyamelana ne-corrosion ngama-acids, i-alkaline gases, izisombululo kunye nezinye imidiya.Yintsimbi ekungelula ukuyirusa, kodwa ayinayo umhlwa kwaphela.Ipleyiti yentsimbi engatyiwayo ibhekiselele kwipleyiti yentsimbi ekwaziyo ukumelana nokudleka ngenxa yemithombo yeendaba ebuthathaka efana ne-atmosfera, umphunga namanzi, ngelixa ipleyiti yentsimbi ekwaziyo ukumelana neasidi ibhekiselele kwipleyiti yentsimbi ekwaziyo ukumelana nokudleka ngamajelo eendaba adlayo anjengeasidi, ialkali netyuwa.Ipleyiti yensimbi engenasici inembali engaphezulu kwenkulungwane ukusukela oko yaphuma ekuqaleni kwenkulungwane yama-20.
