We transformed our aggregate driveway from an algea mess, into a beatiful showpiece. We really didn't know what we were missing.
I used a 1/2" mat roller after pressure washing and drying for a day. Their instructions are easy to follow and well thought out. I applied two coats over 48 hours and it left a semi-wet appearance that really shows the multi colored rock.
I can't speak yet for water resistance, it hasn't rained yet. We live in the Pacific Northwest so I'm really hopefull it will perform as advertised. What a difference!