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PREPARATION AND APPLICATION
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EMISSION TESTING
All areas to be treated
must be tested [in accordance with
ASTM
F1869-04 (Calcium Chloride test) or ASTM
F-2170-04 (in situ probe test).
All areas must also be tested for
alkalinity. Map the location of all tests and
results.
Record temperature and humidity
conditions.
For concrete slabs with hydrostatic
pressure (liquid water transmission) or emission
levels greater than 15 lbs. MVER, or relative
humidity greater than 90% RH, use DEPENDABLE
VAPORSEAL products.
Under slab moisture without an effective
barrier can vary and testing only measures
current conditions.
Where an effective under slab barrier is
not present, use of VAPORSEAL products should be
considered.
Do not use on new concrete (less than 1
year) without RH (ASTM F2170) tests and
consulting Technical Services.
Calcium Chloride Testing is never
acceptable unless HVAC is on 24x7.
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SURFACE PREPARATION
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Extremely dry conditions:
Applications in very dry
environments, over a very dry slab, will lead to
pre-mature drying.
In this case the
product does not develop a proper bond or film.
When these
conditions exist, it is recommended to
pre-dampen the concrete with water.
Soak the concrete
with water by mop, broom or other apparatus.
Be sure to maintain
a damp (with no standing water) slab while
installing CUTDOWN II.
This will allow the
product to dry at its normal rate.
Standard Concrete Surfaces:
When
using CUTDOWN II as a moisture retarder,
penetration of the slab surface is necessary for
maximum bond and effectiveness.
CUTDOWN II should have intimate contact
with absorptive concrete slab.
Concrete repairs underneath CUTDOWN II
must be well bonded hydraulic cement materials,
not contain latexes affected by water and be
porous enough to absorb water readily..
All others must be removed and all
leveling done above CUTDOWN II.
All surfaces to be treated must be sound,
solid, clean, absorptive, and dry.
Surface shall be free of sealers, dirt,
dust, paint, adhesive residues or other
contaminantsor bond breakers of any kind
that
might interfere with the product’s penetration
and bond.
All such materials must be removed prior
to installing CUTDOWN II.
Soft, dusty or weak layers of concrete
should be removed.
One
way to test surface is by pressing a piece of
duct tape onto the concrete.
Remove and inspect the back.
The surface may be considered clean if
the tape is clean.
Cleaning usually requires damp mopping.
Make sure there is no standing water remaining
on surface. Open, absorptive
concrete permits proper bond and long term
performance for CUTDOWN II.
To test for absorptive surface and
absence of sealers, place dime-size drops of
water on several places on subfloor. Water
should penetrate concrete within about 30
seconds.
If water beads, surface is not ready to
receive CUTDOWN
II.
Polished, power trowelled or very smooth slabs
shall be ground, scarified, or bead blasted to
allow CUTDOWN II to soak into pores and bond to
slab.
Installation on a smooth slab without
profile requires test application and bond
testing.
Alkalinity in concrete greater than pH of
10.0 should be reduced with diluted vinegar wash
prior to installation.
CUTDOWN II may leave an “orange peel”
finish that may require leveling with some
floors.
Joints In Slab:
Expansion (through slab) joints should be left
intact.
CUTDOWN II is not warranted against structural
movement or moisture at expansion or “cold”
joints.
Joint walls may be painted and joint filled with
a material designed to allow movement to
minimize moisture transmission.
Dimensionally stable, or non-moving, saw
cut control joints, voids and cracks shall be
filled by brushing or pouring CUTDOWN II into
the thoroughly cleaned joint .
Any finish leveling must be done
over the area when CUTDOWN II has dried with an
appropriate patch such as SKIMCRETE XL, SKIMCOAT
or other DEPENDABLE leveling materials.
Bond and Wood floor coverings:
The
bond required of
CUTDOWN II will vary slightly depending on the
floor covering and adhesive.
When preparing a substrate that will
receive a finish-wood flooring, the substrate
must always be shot blast to clean, open
absorptive concrete.
(See LIMITATIONS / PRECAUTIONS)
Adhesive residues:
CUTDOWN II may be used to isolate well bonded
(non soluble) adhesive residues, including
Cutback. CUTDOWN II does not bond as strongly to
adhesive residue as to adsorptive concrete, but
forms an
effective membrane.
The dark color of cutback adhesive
residues will show through even 2 coats of
CUTDOWN II, but is not an indication of bleeding
through the material.
For adhesive residue isolation only,
CUTDOWN II can be applied on wood substrates.
Wood substrates must be secure, free of
movement and underlayment grade.
Since it can not penetrate into the concrete,
CUTDOWN must not be used for moisture control
when covering cutback or other adhesive
residues.
Existing adhesives
should be well bonded to substrate.
Aggressively scrape surface to
remove all possible material and high spots.
NOTE:
Do not scrape adhesives containing
asbestos unless following special asbestos
removal procedures.
Water soluble adhesives shall be removed.
Leveling or patching normally must be
completed following CUTDOWN II application.
Use the appropriate DEPENDABLE patching
or self-leveling product to maintain full
warranty.
Self Leveling
When installing self leveling products over
CUTDOWN II, the method and extent of preparation
should be consistent with recommendations of the
self-leveling product as well.
Use of spiked sandals during installation
should be avoided over CUTDOWN II..
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MIXING
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TWO PART MIX AT TIME OF APPLICATION
CUTDOWN II is packaged 4 gallons in
a 7 gallon pail for easy
mixing.
Parts A and B are packaged in
separate pails within the 7 gallon
pail.
Pull both pails out, remove
the lids and pour the material into
the 7 gallon pail.
Use a brush to scrape the
material from each pail.
Pour Part A into 7 gallon
pail first, then add in Part B.
Mix mechanically with a mix
blade designed to mix low viscosity
liquids, such as a Jiffy mixer. Mix
thoroughly, at about 300 rpm, for 3
minutes until streak free.
Avoid entraining air or mix
until observable bubbling does not
occur.
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APPLICATION
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APPLICATION COVERAGE/MILS REQUIRED FOR
WARRANTY
–
A mil is a thousandth
of an inch.
Mils may be
measured with a wet film gauge (available
through Dependable distribution or local
professional paint stores).
Approximate mils
can be achieved by using the required
coverage rate.
To ensure proper
coverage, mark out the area of the floor
that a gallon should cover.
MVER
Lbs. |
RH |
WET MILS
Applied |
DRY MILS
Cured |
#/Coats |
Sq.Ft./4 gal. |
| 8 |
85 |
12 |
8 |
2 |
540 |
| 15 |
90 |
18 |
12 |
3 |
360 |
Mark with tape or otherwise measure out the
area of floor intended to be covered by the
container or containers mixed.
Film gauges are also useful to check
the thickness of the wet material.
Dry mil thickness must be equal to
lbs. MVER. to be abated up to 12 mils for
warranty. Assure
that sufficient material is used to achieve
minimum mils of application required.
TWO COAT APPLICATION (8 lb. MVER and less)
With
a coverage rate of 200 – 350 square feet per
gallon, wet film thickness should be about 5
– 8 mils per application, which may vary
with surface porosity. CUTDOWN II is
normally applied with a 3/8” nap roller. Nap
size will depend upon the texture and
porosity of the surface. Either dip the
roller into the pail or a paint pan or pour
one width strip directly onto surface. Roll
with even and consistent strokes, keeping
all application back and forth in the same
direction, to ensure even application. Allow
the first coat to dry 2 – 3 hours before
beginning the second application. Apply the
second coat in the opposite direction to the
first or on a diagonal. Final dry film
thickness should be 4 mils or more. Allow
24-48 hours prior to application of floor
covering.
THREE COAT APPLICATION (Where MVER may exceed 8 lb.)
Whenever CUTDOWN II is
used to mitigate moisture, the coverage and
resulting depth of the coating is critical.
In order to
assure enough mils of membrane (12 dry
mils),
the
first coat should be a double wet applied
coat totally at least 9 wet mils and the
area intended to be covered by one gallon
(160 square feet on the first coat) should
be marked off.
In the measured
area, using a 3/8 or 1/2” nap roller, roll
the product liberally onto the floor from a
pan or material poured on the floor across
one width.
While that
application is still wet, roll a second wet
application of CUTDOWN II over the initial
wet coat.
Depending upon
the porosity of the substrate, the material
may be dry to the touch when re-applying.
If
applying by pouring on to the substrate,
lightly pre-dampen the floor with water.
Use a mop or
broom to spread the water on the floor.
Make sure there
is no standing water --that the surface does
not glisten-- prior to installing CUTDOWN
II.
Allow to dry 2 hours
before applying second or third coats.
Apply the second
coat across the grain or perpendicular to
the first coat. Apply third coat in the same
direction as the first coat.
Allow a minimum
of 24 up to 48 hours cure time without
traffic on the floor before patching or
covering, depending on temperature and
humidity.
Full cure is at 48 hours.
FLOORING APPLICATION
Most adhesives (including latex, urethane,
epoxy and thin set mortars) and leveling
compounds may be applied directly to the
surface.
For coatings and other covering
materials, consult Technical Services.
Testing the adhesive for acceptable bond is
always advisable.
Exercise care to protect cleanliness
of CUTDOWN II and avoid traffic during
curing until covered.
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CLEAN-UP
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Use soap and water to clean tools or spatter while CUTDOWN II is wet. Once the material dries and hardens, abrasive removal is required.
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LIMITATIONS / PRECAUTIONS
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SHELF
LIFE—CUTDOWN
II should be used within 12 months of
manufacture and should be stored in
cool, shaded areas.
Protect from heat, direct sun and
freezing.
Temperatures above 75°F will
significantly shorten shelf life.
Do not store above 90° or allow
to freeze.
- Not for use over new concrete or where epoxy floor coatings are applied directly over membrane. Consider DEPENDABLE VAPORSEAL products.
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Application
area should be conditioned at 70°F with
maximum humidity of 60% for 48 hrs.
prior to and 72 hrs. after application.
Concrete slab temp. must be
minimum of 55°F..
Do not apply over existing
coatings, sealers or floor coverings.
- Extreme care should be taken with any operations on the CUTDOWN II membrane so as not to damage or de-bond the membrane..
- Cover CUTDOWN II within 48-72 hours.
- Do not use over soft, heavy cutback or other spongy surfaces, as film will crack and isolation will fail.
- Do not nail into or penetrate CUTDOWN II membrane.
- Not recommended where high alkalinity exists. If pH exceeds 12, take measures to reduce it.
- Not an adhesive,
wear layer or topping
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Not warranted to
reduce emission levels greater than 15
lbs. MVER or relative humidity in slab
exceeding 90% at any time during service
life (5 years).
If subsequent moisture levels may
be higher or hydrostatic water (liquid)
may occur, use VAPORSEAL products, not
CUTDOWN II.
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Not designed to have regular contact with liquid water.
-
Not warranted for
use on residential wood floors
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LIMITED WARRANTY
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Dependable Chemical Co., Inc. warrants and guarantees to the original owner of the installation that DEPENDABLE CUTDOWN II, when used in ac5ordance with the current instructions and technical bulletins, will reduce moisture emission rates (MVER) up to 15 lbs. per 24 hours per 1000 square feet or relative humidity of 90% to a moisture emission rate of less than 3 lbs. or such higher value as required by the manufacturer of the floor covering used in the installation, PROVIDED
• a proper moisture test is performed immediately prior to installation of CUTDOWN II to establish that the moisture level does not exceed the maximum allowable;
• the dry or cured mils applied to the floor are equal to or exceed the maximum moisture level that is required to be mitigated;
• DEPENDABLE is notified of any claim of failure and given proper opportunity to inspect and test for moisture prior to the membrane being disturbed or removed;
• Tests at the time of failure establish that moisture under CUTDOWN II in the slab is less than the maximum permissible, and that moisture transmitted through CUTDOWN II exceeds 3 lbs. MVER or that CUTDOWN II will provide a barrier to transmission of cutback adhesive to a new floor covering where applied to a hard, well bonded adhesive residue. In the event of damage or failure of flooring caused by excessive moisture emissions or due to migration of adhesive residues under this warranty, DEPENDABLE shall provide all labor and material to repair or remove and replace the floorcovering placed over CUTDOWN II (including any costs of removal of old material) with a floor of similar quality for the same period of time and at the same proportion of replacement cost coverage as the manufacturer of the original floor covering material placed over CUTDOWN II offers for the replacement of its product, provided that DEPENDABLE is given proof of application of sufficient CUTDOWN II to provide the recommended coverage rate on the installed floor. This warranty is limited to five (5) years after installation and conditioned upon DEPENDABLE being given notice of such failure within 5 years after the initial installation of CUTDOWN II and within 30 days after the first discovery of the defect attributed to such installation, whichever occurs first.
DEPENDABLE makes no warranty as to merchantability or fitness for a particular use and this limited warranty is in lieu of all other warranties, express or implied, and no salesman, agent, distributor, or dealer has authority to expand, alter or waive these provisions.
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24 HOUR EMERGENCY: CHEMTREC® 1-800-424-9300
NON-TOXIC and NON-FLAMMABLE
Keep container closed and keep away from children. May cause slight eye abrasion or irritation if spilled or rubbed in eyes. Flush thoroughly with water. If taken internally, call a physician.
Technical Assistance: call 1-800-227-3434
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