美标2号澳标C型，其主粒径范围在0.4~0.85mm，适合于普通热熔反光型面撒（不低于350g/㎡）及内混（不低于20%），双组份刮涂内混及面撒，双组份喷涂面撒，水性喷涂面撒施工，按正常生产双组份、水性标线面撒的逆反射亮度系数基本在500mcd左右，

Type C beads are mixed into thermoplastic pavement-marking material by the manufacturer prior to application, and are intended to provide retroreflectivity throughout the life of the marking. These beads should be intermixed at a rate of not less than 20% by mass. These beads may also be used for surface applications to a wet film of pavement-marking material to provide initial retroreflectivity. When these beads are applied on a smooth substrate, a nominal rate of 350 g/m2 may be appropriate. A coarse surface substrate usually requires a higher rate of application of beads to achieve a similar level of retroreflectivity. NOTE: These beads are not moisture-proof coated.