美瑞H300固化剂 脂肪族HDI三聚体 无溶剂低游离单体耐候耐黄变 适配汽车漆3C塑胶 木器漆双组份聚氨酯PU涂料胶粘剂 汽车修补与塑胶聚氨酯面漆原料
美瑞H300为100% 固含脂肪族HDI三聚体固化剂,低游离 HDI 单体,NCO 含量 21.6%-22.2%,耐 UV 长效抗黄变、保光耐磨,与丙烯酸、聚酯多元醇相容性优良,适配汽车漆、3C 塑胶、户外木器双组份 PU 涂料,国产替代进口,原厂现货可分装。
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