ʻUlaʻula hao ʻokikene, melemele, uliuli, ʻōmaʻomaʻo, ʻeleʻele, ʻeleʻele.

* Hoʻohana ʻia i nā ʻano pena he nui, me ka pena antirust, nā pena kūloko/waho i hoʻoheheʻe ʻia i ka wai a me nā pena aila.
* Hoʻohana ʻia no ka hoʻoluʻu ʻana i nā mea kūkulu hale, e like me nā piliki mosaic, no nā piliki sima, ke alanui, nā tile kala, nā tile uhi hale a me ke kinikini i hana ʻia e ke kanaka.
* Nā kala no ke kino keramika.
* Hoʻohana ʻia i ka ʻoihana pepa, ʻoi aku hoʻi i ka pepa laiki.
* Hoʻohana ʻia no ka hoʻoluʻu ʻili o ka papahele epoxy plastik, kala no ka pitch.
* Hoʻohana ʻia ma ke ʻano he kala ʻoi aku ka pale ʻana i ka mae no nā plastik.

ʻO ka pigment hao oxide kahi ʻano pigment me ka hoʻopuehu maikaʻi, ke kūpaʻa maikaʻi loa i ka mālamalama a me ke kūpaʻa i ka wā. ʻO nā pigment hao oxide e pili nui ana i ʻehā ʻano pigment kala, ʻo ia hoʻi ka hao oxide ʻulaʻula, ka hao melemele, ka hao ʻeleʻele a me ka hao brown, me ka hao oxide oxide ma ke ʻano he mea kumu. I waena o lākou, ʻo ka hao oxide ʻulaʻula ke kala nui (e helu ana ma kahi o 50% o nā pigment hao oxide). ʻO ka hao oxide micaceous i hoʻohana ʻia ma ke ʻano he pigment antirust a me ka hao oxide magnetic i hoʻohana ʻia ma ke ʻano he mea hoʻopaʻa magnetic e pili ana hoʻi i ka māhele o nā pigment hao oxide. ʻO ka hao oxide ka lua o ka pigment inorganic nui loa ma hope o ka titanium keʻokeʻo, a ʻo ia hoʻi ka pigment inorganic kala nui loa. No ka huina o ka hoʻopau ʻana o nā pigment hao oxide, ʻoi aku ma mua o 70% i hoʻomākaukau ʻia e ka synthesis kemika, i kapa ʻia ʻo synthetic iron oxide. Hoʻohana nui ʻia ka synthetic iron oxide i nā mea kūkulu hale, nā uhi, nā plastics, nā mea uila, ka paka, ka lāʻau lapaʻau, ka rubber, nā keramika, ka ʻīnika, nā mea magnetic, ka hana pepa a me nā ʻoihana ʻē aʻe ma muli o kona maʻemaʻe synthetic kiʻekiʻe, ka nui o nā ʻāpana like, ka laulā o ke kala, ke kumukūʻai haʻahaʻa, ʻaʻohe ʻawaʻawa, ka hoʻoluʻu maikaʻi loa a me ka hana noi, a me ka hana absorption ultraviolet.