Is 'bonding agent' the same as 'admixture adhesive'?
I believe it is the same product and can be used in either job as a primer or as an additive to give the concrete more resiliency and plasticity. Your description makes it sound like the same product here in N.A. To be sure it can function as a primer try this test: using a paint brush apply it full strength to a clean out of sight concrete surface. If after several minutes it dries to a clear to opaque finish it's most likely a concrete primer (the brush that was used should now have a plastic film from the dried polymer). To use as one I recall that the newly applied primer should not be allowed to dry before the cement is placed. If it does I think you just recoat with another application. To use it as an admixture for better workability (in mortar mostly): pour the recommended amount into a clean bucket and than add the required amount of water for the batch to the same bucket and mix. Now add polymered water to the batch.