Main Menu

Recipe: Refurbishing an Existing Interior Slab with Microtopping, Dye, and Sealer 

Refurbished concrete floor in a living room space.Recipe by QC Construction Products — Madera, Calif.

QC Concrete Resurfacer HD base coat: Gray
QC Concrete Resurfacer HD finish coat: White
QC Concrete Resurfacer HD mix liquid
QC Concrete Dye: Warm Honey
QC Surpro water-based polyurethane matte sealer
QC Natural Beauty maintenance topcoat finish

Surface preparation requires mechanical grinding of the surface to achieve a No. 2 on the ICRI surface profile scale. All surface glue or mastic must be removed so the surface is smooth and free from contamination.

Mix 2.5 gallons of QC Concrete Resurfacer HD mix liquid and 1 bag of QC concrete resurfacer HD base coat powder in a pail. Mix for 2 minutes or until the material is lump free and has a smooth consistency. Apply the gray QC base coat with a trowel, squeegee or 3/4-inch nap roller. Apply 150 square feet to 200 square feet. Dry for 3 hours. Repeat the gray base coat application process to achieve a final thickness of close to 1/8 inch. Dry for 3 hours.

Mix 2.5 gallons of QC Concrete Resurfacer HD mix liquid with 1 bag of QC Concrete Resurfacer HD white finish coat powder in a new clean pail. Mix for 2 minutes. Apply with a trowel to create random trowel marks and movement in the final finish of the white finish coat. Apply 200 square feet to 300 square feet. Feel free to “burn” the material to produce even more variegation and movement in the finish coat. Dry for 24 hours.

QC Concrete Dye Warm Honey can either be used in a water base or solvent base. Dilute the dye with 25 percent acetone or water. Spray the dye with pump or airless sprayer. Dry for 30 minutes. Repeat to achieve the desired final color intensity. Typically, two coats of QC Concrete Dye are sufficient. Dry for 2 to 4 hours.

Use a soft broom or vacuum to clean the floor. Mix the entire Surpro WB kit (parts A and B) in a clean plastic mixing container with a mechanical mixer at low speed for 1 minute. Apply the QC Surpro WB with a Padco lightweight spreader at a rate of 300 square feet per gallon. Let dry 4 to 6 hours. Apply a second coat. Dry for 24 hours. Apply QC Natural Beauty with a Padco heavy-weight spreader at a rate of 600 square feet to 800 square feet per gallon. Dry for 12 hours. Apply QC Natural Beauty matte finish as needed to maintain the floor.