PRODUCT DESCRIPTION
Ultra Skim Coat USP-900 is especially formulated for flash
patching and skim coating of wood, cementitious, ceramic and
quarry tile surfaces using new internal drying technology.
Ultra Skim Coat USP-900 is designed for sub floor preparation
utilizing internal self-drying technology.
In most cases floor coverings may be installed over USP-900
when the USP-900 is not completely dry. Normal drying
time is one to two hours.USP-900 can be used for flash patching,
skim coating and to fill areas with irregular surfaces such
as ridges, gouges, depressions and seams. It can be
used on almost any type of sub floor. The surface should
be cleaned free of oil, grease and loose debris. The
surface does not need to be primed and only water needs to
be added to the USP-900 in ratio by volume of two parts USP-900
to one part water.
USP-900 can be spread easily from a thin coat up to one half
inch over large areas with excellent coverage and little effort.USP-900
has the following advantages:
1. Finish flooring products can be installed in one to two
hours after the application of the USP-900.
2. Plywood joints, floor seams and transition areas can be
filled and leveled out with USP-900.
3. USP-900 bonds permanently to all cementitious surfaces
as well as wood, terrazzo, ceramic and quarry tile without
the need to prime these surfaces.
4. For home applications USP-900 can be installed over old
adhesive residue. The old adhesive residue should be
scraped to level the surface and abraded to enhance the adhesion
of the USP-900.
5. USP-900 is formulated so that the application will not
alter the floor covering manufacturer warranties due to softening,
staining, mildewing or crumbling from intermittent moisture.
6. This product has been formulated utilizing the latest in
polymer technology. Our system utilizes and ethylene
vinyl acetate copolymer.
7. USP-900 can be used as a finished wearing surface if it
is coated, after and overnight dry, with USP’s Wet-Look
Stain or Clear Sealer. The USP-900 must be applied
at a minimum depth of one-eighth inch and only on surfaces
where there is light foot traffic or light to moderate traffic
with casual use by pneumatic tire vehicles.
8. USP-900 can be used inside or outside on horizontal or
vertical surfaces. On outside applications it must be coated
with a sealer such as USP’s Wet-Look Acrylic Stain and/or
Sealer.
PRODUCT TEST RESULTS
Work Time:
Approximately fifteen to twenty-five minutes.
Color:
Light Grey
Compressive Strength (ASTMC-109, Air Cured)
7-Days
28-Days
Tensil Bond Test
28-Days
ADDITIONAL TEST
Shrinkage %: Expansion %:
3-Days Value: 0.065 1-Day
Value: +0.050
7-Days Value: 0.166 7-Days
Value: +0.049
14-Days
Value: 0.174
14-Days Value: +0.050
20-Days
Value: 0.177
28-Days Value: +0.087
LIMITATIONS
1. Not designed for direct traffic.
2. Do not apply at temperatures below 49º F.
3. Should not be applied on wet surfaces.
4. Do not apply at a thickness over one half inch.
5. Do not over trowel or air bubbles could develop in the
applied USP-900.
6. Do not mechanically mix at too high a speed
or air can be trapped
in the USP-900 mixture.SUB FLOOR PREPARATION
All sub floors must be sound. The sub floor must be
clean. Remove any waxes, oils and sealers. The
sub floor must be free of dust, debris and any matter that
will be a bond breaker. Al sub floors must be dry and
the temperature of the area must be above 49º F. The
cleaned area does not need to be primed.MIXINGThe mixing ratio
is two parts powder by volume to one part water. Add
powder to the water not the water to the powder. Add the powder
slowly and mix
with a mechanical mixer at approximately five hundred to six
hundred rpm’s to insure the mix is lump free, creamy,
and smooth and at a trowel consistency. Apply the USP-900
using a steel trowel. Use enough pressure to force the
USP-
900 into all the defaults and feather (skim coat) the USP-900
onto the sub floor surface.
POT LIFE
The pot life will vary based on the ambient moisture and temperature
conditions. Generally the pot life will be fifteen to
twenty minutes at 70º F. The pot life can be extended
by re-mixing the USP-900 with a mechanical mixer. No additional
water should be added. To avoid waste mix only the amount
of material that can be applied in fifteen minutes.
THICKNESS OF APPLICATION
USP-900 can be applied from a skim coat up to one half inch
thick over large areas. In well-confined areas, such
as thresholds, height transitions between precast panels or
where walls have been removed, much thicker amounts of USP-
900 can be applied.
FLOOR INSTALLATION
Most floor coverings can be installed over damp (less than
five percent moisture) USP-900. Make sure the USP-900
is hard enough to allow application of the flooring adhesive
with a noticed trowel without damage to the USP-900 surface.
This should be a period of approximately one hour after application
of the USP-900.
COVERAGE
Due to the ability of USP-900 to be applied at a very small
film thickness the coverage rate will be in excess of one
hundred square feet per ten pounds over concrete and up to
three hundred square feet over a plywood sub floor.
Scraped, roughened and cleaned old adhesive plywood floor
would be closer to two hundred square feet.
6301 -B N.W 74th Avenue
Miami, FL 33166
Ph: 305-591-8309 • Fax: 305-591-8568
E-Mail: info@ultrasystemproducts.com
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