HM1120是双组份、环(huan)氧树脂固化(hua)(hua)的聚硫(liu)(liu)代髄类密(mi)封剂。该材(cai)料的显著特点(dian)是与传统密(mi)封剂相比(bi)，固化(hua)(hua)条件受 环(huan)境影响较小，能(neng)够在低温(wen)条件下硫(liu)(liu)化(hua)(hua)，-7P时硫(liu)(liu)化(hua)(hua)24h硬度(du)即可达(da)到(dao)25 Shore A以上。长期使用(yong)(yong)温(wen)度(du)为(wei)-55~ 120P,可在180P短期使用(yong)(yong)。

　　HM1120具有优异的(de)(de)粘接性(xing)能，可与多种常用(yong)(yong)的(de)(de)飞机表面(mian)和密封剂界面(mian)进行粘接。其中，A类适用(yong)(yong)于刷涂(tu)、注 射(she)或喷涂(tu);B类具有良好的(de)(de)触变性(xing)，适合于挤压(ya)枪施工或刮涂(tu)。

　　首先使(shi)用(yong)脱脂(zhi)(zhi)棉(mian)(mian)布(bu)(bu)(bu)或棉(mian)(mian)纱(sha)蘸取120号溶剂油(you)清(qing)(qing)洗(xi)试(shi)片(pian)表(biao)(biao)面，至(zhi)(zhi)棉(mian)(mian)布(bu)(bu)(bu)或棉(mian)(mian)纱(sha)清(qing)(qing)洁干(gan)净为(wei)止，然(ran)后(hou)(hou)(hou)用(yong)干(gan)燥的(de)(de)脱脂(zhi)(zhi)棉(mian)(mian) 布(bu)(bu)(bu)或棉(mian)(mian)纱(sha)擦去(qu)残(can)留(liu)的(de)(de)溶剂油(you)，经(jing)10min~15min晾干(gan)。然(ran)后(hou)(hou)(hou)使(shi)用(yong)脱脂(zhi)(zhi)棉(mian)(mian)布(bu)(bu)(bu)或棉(mian)(mian)纱(sha)蘸取丙酮清(qing)(qing)洗(xi)试(shi)片(pian)表(biao)(biao)面，至(zhi)(zhi)棉(mian)(mian)布(bu)(bu)(bu)或 棉(mian)(mian)纱(sha)清(qing)(qing)洁干(gan)净为(wei)止，然(ran)后(hou)(hou)(hou)用(yong)干(gan)燥的(de)(de)脱脂(zhi)(zhi)棉(mian)(mian)布(bu)(bu)(bu)或棉(mian)(mian)纱(sha)擦去(qu)残(can)留(liu)的(de)(de)丙酮，经(jing)10min~15min晾干(gan)后(hou)(hou)(hou)，涂(tu)(tu)(tu)覆NJD-5粘接底涂(tu)(tu)(tu)。涂(tu)(tu)(tu)敷结(jie)束30min后(hou)(hou)(hou)，可进(jin)行密封剂的(de)(de)涂(tu)(tu)(tu)敷施工。清(qing)(qing)洗(xi)完毕的(de)(de)试(shi)片(pian)表(biao)(biao)面严禁用(yong)手触摸，污染后(hou)(hou)(hou)的(de)(de)试(shi)片(pian)表(biao)(biao)面应重新 进(jin)行清(qing)(qing)洗(xi)。