This is what PolyKote looks like and it is the most trusted, used and powerful binder there is for aggregate binding, including pebble binding or almost any aggregate.
Major contractors from Cape Town to Cairo have come to respect and rely on this binder to successfully apply pebbles on all their projects.
PolyKote has two "brothers-in-arms" to bind pebbles in different ways...
SticKote for vertical wall applications and...
BindKote for spray on applications over sand or pebbles to anchor in place.