Byihuta (gukuramo-ubushuhe) mubisanzwe mubitambara byanditseho hydrophobique.
Iri jambo risobanura 'gutinya amazi' ariko ibyo bikoresho ntibitinya amazi, barabyanga aho kubyakira.
Nibyiza cyane kugumya kumara igihe kirekire kuko bisaba amazi menshi mbere yuko ubwo bushobozi bwumye (bwangiza-bwenge) bwatsindwa bugahagarika akazi
Ahanini, umwenda wumye (wick-wicking) nigikoresho gifasha kwimura amazi hafi yumubiri wawe akajya hanze yimyenda aho izashirira.Nibikoresho bikurura urumuri bidafashe kumazi nkuko ipamba cyangwa ibindi bitambaro bisanzwe.