Priming consists of spraying a primer onto the compacted gravel or crushed rock base. This is carried out to prepare the surface for the subsequent seal coat and to assist in waterproofing the pavement.
Hincol Cutback MC30 is a specially formulated cutback bitumen primer designed for efficient spraying and good adhesion to prepared bases and stone.
It is designed for application on low porosity surfaces to facilitate optimum penetration of the primer into the substrate. Suitable application rates range from 0.5 to 1.0 L/m2.