ʻO ka plaster based Gypsum ka mea maʻamau i kapa ʻia ʻo ka mortar maloʻo pre-mixed nona ka gypsum ma ke ʻano he mea hoʻopaʻa.Hoʻohui ʻia me ka wai ma ke kahua hana a hoʻohana ʻia no ka hoʻopau ʻana i nā paia o loko - brick, concrete, ALC block etc.
ʻO Hydroxy Propyl Methyl Cellulose (HPMC) kahi mea hoʻohui pono no ka hana maikaʻi loa i kēlā me kēia noi o ka plaster gypsum.