硫氧鎂板的強度可與氯氧鎂板相同，在氯化鎂溶液中加入硫酸鈣或硫酸鈣和磷酸鈣的混合物。可以認為是氯氧鎂板的變化。加入磷酸鹽主要是為了改善泥漿的流變性和抗力。

硫氧(yang)鎂(mei)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)和氯氧(yang)鎂(mei)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)的區別(bie)在于混合溶液(ye)的酸根不(bu)(bu)(bu)同，所以(yi)兩(liang)種鎂(mei)基(ji)膠凝(ning)材料的防(fang)水、保溫(wen)、耐久、環保等性能(neng)是相同的。硫氧(yang)鎂(mei)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)保留了(le)氯氧(yang)鎂(mei)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)的上(shang)述性能(neng)，避免(mian)了(le)廠家為氯氧(yang)鎂(mei)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)吸潮返(fan)鹵買單的隱患。但硫氧(yang)鎂(mei)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)也存在不(bu)(bu)(bu)經過改性強度低、體積不(bu)(bu)(bu)穩(wen)定、耐性能(neng)差等缺點，限制了(le)其(qi)應(ying)用(yong)。科學的改性劑可以(yi)解決這(zhe)個問題，硫氧(yang)鎂(mei)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)可以(yi)用(yong)在很多領域，比(bi)如菱鎂(mei)防(fang)門芯板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、外墻(qiang)保溫(wen)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、硅質改性板(ban)(ban)(ban)(ban)(ban)(ban)(ban)、防(fang)板(ban)(ban)(ban)(ban)(ban)(ban)(ban)