Description: BULLSUR MI – 21 is solvent free moisture insensitive low viscosity two component epoxy primer product based on epoxy (resin) and reactor (hardener) to be used with self smoothing epoxy screed for internal use where surface moisture & water level are very high. Moisture should not be more than 5% as required for industrial flooring. One coat of moisture insensitive primer is required to achieve the desired bonding efficiency with floor system or other cementitious substrates are of particularly smooth surface, BULLSUR MI – 21 should be seeded with fine aggregate immediately after application of the primer to give a mechanical key to facilitate installation of resin screeds and topping.