ʻOi aku ka maikaʻi o ka PU caster a i ʻole ka rubber castor no ka ʻūpā mālama ʻoihana?

I ke koho ʻana i ka mea o nā mīkini hoʻopaʻa waihona, loaʻa iā PU (polyurethane) a me ka rubber ko lākou mau pono a me nā hemahema, pono e hoʻoholo ʻia e like me ke ʻano hoʻohana a me nā koi.

1. Nā ʻano o nā mīkini PU
1) Pōmaikaʻi:
A. Ke kūpaʻa ikaika i ka ʻaʻahu: He paʻakikī kiʻekiʻe ka mea PU a kūpono no ka hoʻohana pinepine ʻana a i ʻole nā ​​​​​​hiʻohiʻona hana kaumaha (e like me nā hale kūʻai a me nā hale hana). ʻOi aku ka lōʻihi o kona ola ma mua o ka laholio.
B. Mana hāpai maikaʻi: kūpono no ka lawe ʻana i nā haka mālama kaumaha (e like me nā papa ʻoihana).
C. Ke kū'ē ʻana i nā kemika/ʻaila: ʻAʻole e palaho maʻalahi e ka ʻaila a i ʻole nā ​​mea hoʻoheheʻe, kūpono no nā wahi e like me nā keʻena hoʻokolohua a me nā hale hana.
D. ʻOi aku ka maikaʻi o ka hoʻēmi ʻana i ka walaʻau: ʻOiai ʻaʻole i mālie e like me ka laholio, ʻoi aku ka mālie ma mua o nā mea paʻakikī e like me ka nylon.
2) Nā hemahema:
A. Elasticity maikaʻi ʻole: ʻAʻole lawa paha ka hopena omo haʻalulu ma luna o nā ʻili ʻinoʻino e like me nā papahele sima.
B. Paʻakikī haʻahaʻa: Hiki ke emi ka maʻalahi i nā wahi anuanu.
2. Nā ʻano o nā mīkini wili laholio
1) Pōmaikaʻi:
A. Ka omo ʻana i ka haʻalulu a me ka pale ʻana i ka paheʻe: He palupalu ka laholio a kūpono no nā ʻili laumania e like me nā tile a me nā papahele lāʻau, e pale pono ana i nā haʻalulu a pale i ka lepo.
B. Ka hopena hōʻemi walaʻau maikaʻi loa: kūpono no nā keʻena, nā home, a me nā wahi ʻē aʻe e pono ai ka mālie.
C. Ka hiki ke hoʻololi i ka mahana: mālama i ka elasticity ʻoiai i nā mahana haʻahaʻa.
2) Nā hemahema:
A. Palekana nāwaliwali i ka ʻaʻahu: ʻO ka hoʻohana lōʻihi ʻana ma luna o nā ʻili ʻoʻoleʻa hiki ke hana i ka ʻaʻahu a me ka haehae.
B. Maʻalahi e ʻelemakule: ʻO ka hoʻohana lōʻihi ʻana i ka ʻaila a me ka radiation ultraviolet e hiki ai ke nahā.
Ma muli o nā pono maoli, ʻoi aku ka pono o ka PU i nā hiʻohiʻona ʻoihana a ʻoi aku ka kūpono o ka rubber no nā wahi home.