Txhua qhov khoom uas KISHO tau ntse tsim yuav tau txais kev kuaj mob los ntawm Nyiv Xim Lub Koom Haum thiab ces thawb nws mus rau hauv kev ua lag luam.
Japanese Paint Association kuaj cov kev tawv nqaij ntawm cov khoom raws li nram no:
Nws infiltrates lub phaj xeem nyob rau hauv lub khob txheej khoom, tos rau txheej khoom ntawm lub xeem phaj mus lawm crystallize. Tom qab cov khoom yog hardened, nws yog sim rau nws cov hardness. Txhua yam ntawm peb cov khoom tuaj yeem ncav tau qhov nyuaj ntawm ntau dua 6H. Qhov no yog qhov tseeb qhov kev ntsuas ntawm qhov siv lead ua.
