Uburyo bwo gusiga irangi kuri moteri buri gihe bwakurikije uburyo bwa "tropical electrical product pain" (ni ukuvuga amakoti abiri ya epoxy red red oxyde primer ikurikirwa namakoti abiri ya amino alkyd yo guteka varnish). Ikoti rya mbere ryicyuma gitukura cya primer nticyigeze gitekwa kuko gutunganya byari gukurikiraho, kandi hariho itandukaniro rikomeye hagati yamakoti ya mbere naya kabiri yo gukama. Kubwibyo, primer yambere ntabwo yatetse. Icapiro rya kabiri ryakoreshejwe nyuma yo kwishyiriraho no kugerageza birangiye, kandi primer ya kabiri hamwe na aminike alkyd ebyiri zo guteka zavanze. Iyi nzira yakurikiranwe nta kibazo.
Hamwe niterambere ryikoranabuhanga mu nganda, uburyo bwintoki bwonyine ntibushobora kongera guhaza isoko. Gusiga irangi byahindutse biva mu ntoki bijya mu buryo bwikora, hamwe n’urwego rwo hejuru rwo kwikora. Kubera iyo mpamvu, imirongo yo gusiga irangi irakoreshwa cyane kandi cyane, yinjira mubice bitandukanye byubukungu bwigihugu. Mu gihugu cyanjye, cyane cyane kuva ivugurura no gufungura, ibikoresho byo gusiga amarangi byateye imbere cyane.
