Portfolio: Example-4 - depiction 03 of 24
SBR was the first agent, which we applied two coats of. Rendergrip - the red stuff - was the second. Ordinarily one coat of this is required but due to how porous, uneven and weathered the sandstone was, we applied two coats. Not soaking it with water and then SBR first would have prevented a single batch of Rendergrip from drying on the outer millimeters of the surface - which is where it is supposed to dry in order to form the protective water poof layer it is designed to. Not only would needing to apply more Rendergrip have been more expensive, it would also have been a lot more time-consuming.