So, as Phil says, Microcrystalline Wax does not have an abrasive in it.
In fact, the only thing the three products mentioned have in common is that they have wax in them.
Lonsdale probably meant to ask about our Cut'n'Polish, which is a wax with an abrasive held in suspension within. It will smooth back the timber or a sealer, giving an ultra smooth, waxy finish. As with any wax product, only another wax or Friction Polish can be used on top of it - no lacquers or varnishes.
Microcrystalline Wax, made from pellets of microcrystalline wax, is proven to be more water resistant than other waxes (including our own WoodWax 22); this wax also has a higher melting point than most other waxes (scientific fact) so it's less likely to show fingermarks and the like when handled.
Hope that helps.