Artificial stone having excellent mechanical and weatherability properties is prepared from a highly filled crosslinkable organosilicon composition where the filler comprises at least 20 weight percent of coarse fillers, the organosilicon component contains silicon-bonded alkoxy and or hydroxyl groups, with a catalyst containing a metal compound and an amidine or guanidine.
                            具有优异机械性能和耐候性能的人造石是由一种高填充可交联有机
硅组合物制备而成的,其中填料包括至少 20 重量百分比的粗填料,有机
硅组分含有
硅键合烷氧基和或羟基,催化剂含有
金属化合物和脒或
胍。