EUCOFLOOR EPOXY PRIMER is a three component, high-performance bonding system, consisting of: a two component, medium viscosity epoxy (sold by Euclid Chemical) and an oven-dried, coarse silica sand (sold seperately- locally sourced by end-user). The medium viscosity epoxy is mixed and applied to the prepared concrete substrate, and is then immediately broadcast/"seeded" to refusal with the oven-dried coarse silica sand. This creates an aggressive surface profile that provides unsurpassed mechanical bonding for the subsequent cementitious topping.