Reactive Acid Chemical (RAC) Concrete Stain
RAC Reactive Acid Chemical Concrete Stain
Create rich, one-of-a-kind color with RAC Reactive Acid Chemical Concrete Stain. This professional-grade concrete acid stain chemically reacts with minerals in cured concrete, producing translucent, variegated color that becomes part of the concrete itself.
Unlike paint or opaque coatings, RAC enhances the natural character of the concrete, creating distinctive marbled, mottled and stone-like effects that vary from surface to surface.
Ideal for interior and exterior concrete floors, patios, pool decks, walkways, driveways and decorative concrete projects.
Why Choose RAC?
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Chemically reacts with concrete for unique, lasting color
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Creates natural marbled and variegated effects
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Translucent finish lets the character of the concrete show through
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UV-stable for interior and exterior applications
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Colors can be layered and blended for custom effects
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Apply with the VersaStain Sprayer, brush, sponge or rag
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Approximately 100–200 sq. ft. coverage per gallon
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Professional-grade formula
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Proudly made in the USA
No Two Concrete Surfaces Are the Same
RAC reacts with the minerals already present in your concrete. The age, composition, texture, porosity and preparation of the slab all influence the final color.
This natural variation is what gives acid-stained concrete its distinctive character.
Always test your selected color on your concrete before completing the entire project.
For preparation, application, dilution, neutralization and sealing instructions, see the FAQ below.
100 - 200 square feet per gallon. Coverage varies with the surface texture of the concrete, temperature of the concrete, and ambient conditions.
DILUTION: Dilution will vary square foot coverage. When a lighter color is desired, use – Color Extender or water as a reducing agent. Mix at a ratio of 1 Part Color Extender to 1 Part RAC Stain when you need to keep the acidity higher.
Concrete must be clean and free of all dirt and contaminants. Concrete floors must be open and porous prior to applying Active Elements - Concrete Acid Stain. Oil and grease must be removed prior to stain application using Degreaser. Paints and sealers must be removed prior to stain application using our paint and sealer remover - or by mechanical means.
- Interior floors – The required minimum preparation is scrubbing using a floor machine (buffer) with a black pad, grit brush or sanding screen.
- Exterior surfaces (broom finished) – The required minimum preparation is pressure washing.
Equipment must be constructed of plastic or other non-corrosive material. The stain can be applied using a plastic pump sprayer, brush, rag, or sponge. Wash equipment thoroughly after use with water.
NEUTRALIZATION
After the full stain reaction has occurred neutralize the concrete by scrubbing the surface with Concrete Resurrection Neutralizer (8oz in 5 gallons water). A stiff bristle brush or broom should be used to scrub in the neutralizing solution. Use a wet vacuum to collect residue and wastewater. Dispose in accordance with local, state, and federal regulations.
**This product may only be used on fully cured concrete. Allow a minimum of 28-45 days of cure time after the concrete placement to allow ample time for the concrete to completely hydrate.
A minimum of 24 hours of drying time (after the stain has dried to the touch) is required before applying a clear sealer.
It is strongly recommended that a clear sealer be applied as a top coat for abrasion and UV resistance.
It is recommended that a non-skid / skid reducer be utilized when sealing exterior surfaces.
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