Micro-Topping, Smooth Grade BRICKFORM Micro-Topping is used on interior or exterior cured concrete to create a durable surface that can be colored or stained. It is mixed with BRICKFORM Liquid Polymer. The Smooth Grade is applied over SM Professional Grade for a smooth finish when desired. The mixed materials form a thin concrete coating that can be used to restore or repair any concrete surface. Brickform Microtopping, when placed over a base coat of SM Professional Grade that has been primed with Triple Seven Bond Coat, will yield approximately 400-600 square feet per bag depending on application technique. Higher or lower coverage rates should be determined during the mock up phase of the project. The Microtopping should never be applied directly to the concrete slab.