He kawakawa kaha a Caustic Soda, he kaha te waikura, te tikanga he tawerewere, he paraka ranei, he ngawari te rewa i roto i te wai (he werawera ka rewa ki te wai) ka hanga he wairewa kawakore, he whakaheke I roto i te taangata, he ngawari ki te tango i te kohu wai (deliquescent) me te hauhā (te paheketanga) i te rangi, ka taea te tapiri ki te waikawa pūhaumāota kia tirohia mena kua kino.
Nga tono
Ka whakamahia nuitia i roto i te hanga pepa, hopi, waikano, rayon, konganuku, hinu parani, miro whakaoti, purenga o nga hua taara waro, me te tukatuka kai, te tukatuka rakau me nga umanga miihini.
