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June 13 - June 17, 2016

What type of material should I use to achieve bright, bold colors on a concrete floor that gets heavy foot traffic?

Selected Answers

From Jaime Molina of Primary Materials Inc. on June 15, 2016:
 If invited to bid on a floor with bold colors, the options below should land you the job, provided you add a good polyurea topcoat for extreme durability and anti-slip material in the coat to provide for those dazzled pedestrians who will walk over your artistic floor while texting. As a base, acid stains are well known, tried and tested. But watch out for putting too much stain into the concrete pores. You have to leave room for the topcoat to anchor itself! Select a thin-coat polyurea to avoid the possibility of out-gassing that comes with high viscosity topcoats. (Those micro-bubbles would give you an foggy, “frosty” look.) Another option would be a metallic epoxy floor. Artistically, this has the advantage that if you don’t like the way the appearance is starting to look, you can easily roll over the wet epoxy and try a do-over. Or go wild and make the colors crazy and mute them down by coating them with a semi- transparent (almost clear) metallic epoxy. On a trial board, of course!!

From Joe Miller of NextGen Green Building Products, Inc. dba on June 15, 2016:
In addition to the choices mentioned above, you may want to consider a 2-component, 100% solids, aliphatic polyurea topcoat. Or a 2-component, UV-stable, polyaspartic aliphatic polyurea that can be applied in thicker films for better abrasion resistance in higher foot traffic areas.

From Sarah Geary of RockTred on June 14, 2016:
I would recommend a brightly colored body coat with a clear, abrasion-resistant topcoat, perhaps some 2K urethane with a satin or matte finish to disguise wear and tear from potential foot traffic, but will go on thin enough that you won't take away from the colors themselves. Aliphatic urethanes are more light-stable and will not yellow as quickly as cheaper coatings, like aromatic epoxies. If you're coating an area exposed to UV light, make sure that both your coating materials and your colored media, whether pigment or flake, are tested for UV-stability.

From Dennis Jacob of Petro Projects on June 14, 2016:
You can use a solvent-free epoxy coating if it is not exposed to UV. Apply two coats at 200 microns each.If needed, you can seed the first coat with anti-slip grains to give anti-slip effect.

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Tagged categories: Concrete coatings and treatments; Concrete floor coatings

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