Do-It-Yourself Concrete Acid Stain Technical Information by Monster Constructors


Concrete Acid Stain
Alkali Reactive Chemical Stain
Technical Bulletin

Purchase Concrete Acid Stain at Monster Constructors Store

DESCRIPTION: (ARCS) Alkali Reactive Chemical Stains is a penetrating reactive
stain that chemically combines itself with hydrated or cured concrete to produce
permanent variegated, mottled colored effects. Wide color variations are the result of the
reaction, and are normally very desirable. Alkali Reactive Chemical Stains comply with
all air quality management regulations. Before using please read Concrete Colors Tech
Data Bulletin, The Material Safety Data Sheets, Warranty and this entire label.

COVERAGE: The amount of material to perform an installation will depend widely on
the porosity, texture, composition, and age of the concrete, preparation, and application
procedures. Normally, an application of two coats is recommended over concrete, selfleveling
material, or stampable overlays. Apply Alkali Reactive Chemical Stains full
strength (undiluted) at a minimum coverage rate of approximately 150-200 square feet
per gallon per application.

MOCK-UP TEST SECTIONS: Certain skill and practice are necessary to achieve the
desired color affect. The color produced is very unique to the concrete surface in which it
is applied. There are several factors that determine the products final appearance such as,
mix design, porosity, age, texture, the actual color of the concrete, and the color of the
stain, preparation methods, and application procedures. Each of these will significantly
affect the final outcome of the stained concrete. It is highly recommended to produce a
field mock-up on the same concrete consisting of the same mix design of the concrete
that will become the permanent installation. If there is evidence of a weak reaction, thus
creating a color that is lighter than desired, using a chemical stain in a darker color may
give a desired affect. If the concrete to be stained is excessively old and weathered the
chemical reaction of the product will not produce a positive appearance.

EQUIPMENT: (ARCS) Alkali Reactive Chemical Stains are normally brushed into the
surface of the concrete by acid resistant brushes. Where areas of larger applications are to
take place, a pump up sprayer with all chemical resistant parts may be used. By using
sponges, types of foods, various organic materials, and small chemically resistant spray
bottles, many types of special effects can be achieved.

FOR APPLICATION OF SOLUTION TO THE SURFACE: An acid resistant
professional quality hand pump up sprayer equipped with a fan tip. Please note that it is
highly recommended NOT to use an airless sprayer.

FOR RESIDUE COLLECTION: Use an acid resistant wet vacuum to alleviate the
residue material from the surface or wipe clean with rags.

FOR CLEANING FLATWORK: Use a heavy-duty rotary floor machine operating at
approx.175 RPM’s that is equipped with brushes or a pad driver. Use a quality
commercial detergent and a stiff bristled bassine or nylon brushes. For larger areas, use a
walk behind scrubbing machine.

PREPARATION: All concrete flatwork to receive AR Chemical Stains should be
adequately textured for slip resistance. All work areas should be sectioned off to protect
applications of this product. Please note that all floors to be stained should be cleaned
with the materials and equipment listed in the section Equipment for cleaning. Do Not
use acid for cleaning or preparation of the floors, as it will deteriorate the free alkali in
the matrix of the concrete necessary for the chemical reaction of the stain to produce a
color. Remove all contaminants and membrane forming compounds (eg, sealers, curing
compounds) from the surface, for they will not allow the chemical stain to produce an
effect to the concrete. Failure to remove these types of products from the surface will
cause appearance defects. After cleaning the surface, continually rinse the concrete until
the rinse water is completely clean. Please allow the surface of the concrete to completely
dry before applying AR Chemical Stains.

FRESHLY PLACED CONCRETE: All new concrete should be allowed to cure for a
minimum of 30 days as recommended by the manufacturer. Do Not use any membrane
forming compounds. Cure new concrete with new and unwrinkled curing paper. If there
are placements of concrete that occur at different times, make sure all surfaces are cured
with the same procedures to insure the stain applications generate their full potential.
Immediately prior to applying the AR Chemical Stains, clean the hydrated concrete
thoroughly. Sweep and clean the surface a rotary floor machine and detergent.

EXISTING / OLD CONCRETE: these types of surfaces should be completely clean
and have sufficient porosity. Pressure wash the surface to remove all dirt and
contaminants from the concrete. It is highly recommended that surfaces previously coated
with curing materials, paints, coatings, waxes, or water repellants, or surfaces that cannot
be cleaned by other methods, should be sandblasted by a brush blast method using a
small gradation of sand (approx. # 3-5 grade). If the stains are not adequately reacting
due to the surface being to dense or hard steel troweled, an application of Muratic acid
with a dilution rate of 30 parts water to one part acid may be used to open the surface for
a successful reaction. After cleaning and drying the concrete, test the surface for
penetrability and continue the staining process.

APPLICATION OF AR CHEMICAL STAINS: Divide the areas to be stained into
work sections, and apply the AR Chemical Stain solution at the recommended coverage
rate as stated in the Coverage and use the proper equipment as stated in Equipment. All
safety equipment must be used and protective clothing worn. Please note that the color of
the stain in the containers are not the color of the stain when the reaction process takes
place. During the application of the product, there should be a slight fizzing of the
product caused by the reaction of the metallic salts in the product and the free lime in the
concrete. However, if there is not any fizzing when application occurs, the surface needs
to be more thoroughly cleaned or the surface is not sufficiently reactive enough to be
stained. During the staining process, it is suggested that the use of a chemically resistant
pump-up sprayer be used. This type of application allows the stain to be applied to the
surface at the same time causing the stain to react in a more uniform manner. This will
allow the surface of the concrete to display a more consistent mottling appearance very
desirable when using this product. AR Chemical Stains will continue to react with the
concrete until the fizzing has stopped. Note: Do Not allow the reacted material over any
concrete that is not intended for a chemical stain application, because this material will
continue to react even after the fizzing has subsided. After an application of AR
Chemical Stain has been applied to the concrete, it is very important that workman do not
walk in the wet solution of the stain, for it will show any boot marks or shoe treads that
are very difficult to remove. When using on a vertical surface, remember to start at the
bottom of the structure and work your way to the top. This allows you to reduce the
amount of material that tends to run on a vertical surface. By using a sea sponge or some
type of textured material, virtually all runs can be avoided. Using these type of material
allows some very unique and unusual affects to be achieved. Note: It is very important to
remember that AR Chemical Stains are a chemical reaction and not a surface coating.
The stains will react the very first way they come in contact with the floors. It is very
important that the applications procedures are well planned, because AR Chemical Stains
are very permanent and will only wear as the concrete surface wears away. Reaction time
after the stain has been applied to the surface can be anywhere from 30 minutes to 4
hours depending on the preparation of the surface and porosity of the concrete. After the
AR Chemical Stains have dried, there will be a residue present at the surface created by
the reaction of the metallic salts and the free lime in the concrete. It is important to
remember, that as long as the color selection used is the same, the residue may remain on
the surface between coats. However, if the color selections are different, it is highly
recommended that the residue be removed from the surface between coats. Removal of
all residues from surface should be done by a wet scrubbing machine accompanied by a
high quality detergent, then rinse the surface with water until it is completely clean. Since
the residue may stain adjacent areas and possibly harm plant life, collect run-off material
by wet vacuuming or by using an inert absorbent material. Dispose of all stain residue,
run-off liquid, and absorbent materials used during the application, and discard
equipment in accordance with local, state, and federal regulations.

CAUTIONS:
• Contains various solutions of Acidic materials and different concentrations of Metallic Chloride Salts.
• Do Not get in eyes, on skin or clothing.
• Wear acid vapor mask (NIOSH /MSHA TC 23C Approved).
• Goggles, gloves, protective clothing, and chemically resistant boots are
recommended.
• Use only with adequate ventilation.
• Do Not Under any circumstance breathe vapor or mist.

First Aid:
Eyes – Thoroughly flush eyes with large amounts of water. FLUSH
IMMEDIATELY THEN SEEK MEDICAL ATTENTION.
Ingestion – Consume several glasses of water and milk.
GET MEDICAL ATTENTION IMMEDIATELY.
Skin – Wash thoroughly with soap and water. Remove affected clothing before
continued exposure to product resumes.
Inhalation – Move to fresh air. If symptoms persist or develop get medical attention
immediately.
DO NOT TAKE THIS PRODUCT INTERNALLY
Keep Out Of Reach Of Children

Danger
CORROSIVE CAUSES EYE AND SKIN BURNS
CAUSES SEVERE EYE IRRITATION, POSSIBLE BLINDNESS
VAPOR OR MIST CAN CAUSE IRRITATION OF NOSE, THROAT,
AND LUNGS.

Purchase Concrete Acid Stain at Monster Constructors Store

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