It is mainly used for the reflection of foad graticule and safety signs. No.1 glass microsphere is surface spreading sized,which can be used for surface spreading while constant temperature and hot melt application in order to gain the instant reflecting. No.2 glass microsphere is premixed sized,which is used as premix material,and is premixed in the coating material while producing hot melt road coating in order to guarantee the long term reflection of the reticlue within its life period. No.3 glass microsphere is used for constant temperature coating as the surface spreading glass microsphere. Currency: USD Unit Price: Quantity: Delivery: