1, Resine epoxy bu mag bi, mortar buy dindi asid, siman bu amul benn asid, pavé mën nañu ko jëfandikoo ci anam wu méngoo ak li defarkat bi wax ci kaw ngir tabax;
2, ak asid oxalique ngir setal kaw gi ci beton, lakk-base ci biir asid;
3, industriel prcelain brik yu am asid, diggante yaatuwaayu {{2} àmm, diggante xóotaayu biir bi ak brik bi ñuy jëfandikoo ngir moytu ñu senn;
4, Ginaaw ñu tasaaroo ci jëfandikoo surface buy saytu asid oxalique, ngir jàppale gëna dëgër.
