Geoff -- to quote your original posting on this thread
My point was to agree with you -- be careful about claims of "real" i.e. monolayer graphene, that's all ...
Given that real Graphene is (defined as) one molecule thick and that layer upon layer of Graphene is really no longer Graphene, but still might be better than X, one imagines lots of care is required when making, handling and applying product. On the other hand Graphene has been used in certain tennis racquets for at least five years and is recently showing up in road bike tires. So, most likely by now some Graphene production is top notch. For the DIYer, well, you can always resort to the tape method.
My point was to agree with you -- be careful about claims of "real" i.e. monolayer graphene, that's all ...