Technical Specifications

must be tongue and groove or supported by bridging between floor joists. Install
Exterior Grade Plywood underlayment, minimum thickness of
5
⁄8 " (15 mm) with
1
⁄8 " (3 mm) gap between sheets. Underlayment fasteners should not penetrate
joists below. For
3
⁄4 " (19 mm) tongue and groove subfloor thickness over joists 16"
(40 cm) o.c., install Exterior Grade Plywood underlayment, minimum thickness is
1
⁄2 " (12 mm) with
1
⁄8 " (3 mm) gap between sheets.
Use suitable TEC
®
surface preparation products (Feather Edge Skim Coat,
VersaPatch
®
, Fast-Set Deep Patch) to plug all floor openings, gaps and cracks and
install termination dams to prevent any seepage. Prime the floor. Allow primer to dry
to a clear film. Maintain minimum thickness for Level Set
®
500 HF of
3
⁄8 " (9 mm).
Radiant Heating Systems: For radiant heat system installations, always prime
the substrate before installing heating system components on the substrate surface.
Heating system must be off 2 days before and kept off for 7 days after installation.
Electric Wire Systems Installed Over Substrate – Level Set
®
500 HF may be used
in conjunction with wire systems installed over concrete, single layer plywood/OSB
subfloors with plastic lath or double layer plywood floors without lath. Follow the
requirements for each substrate stated above and maintain minimum thickness of
self-leveling underlayment above the wire of
1
⁄4 " (6 mm).
Electric Mat Systems Installed Over Substrate – Mat system configurations
can vary by system manufacturer. Contact system manufacturer for installation
instructions.
Hydronic Systems Installed Over Substrate – Level Set
®
500 HF may be used in
conjunction with hydronic systems installed over concrete or
3
⁄4 " (19 mm) single
layer plywood/OSB subfloors with lath. Follow the requirements for each substrate
stated above and maintain minimum thickness of self-leveling underlayment over
the heating tubes of
1
⁄2 " (12 mm) (depending on the diameter of the tubing, two
lifts of self-leveling underlayment may be required). When installing ceramic tile
over hydronic systems the application of a crack isolation membrane over the
self-leveling underlayment is recommended.
Hydronic Systems Embedded in Concrete Substrate – Follow the requirements for
concrete substrate installations stated above and maintain minimum thickness
of concrete over the embedded heating tubes of
3
⁄4 " (19 mm). When installing
ceramic tile over hydronic systems the application of a crack isolation membrane
over the self-leveling underlayment is recommended.
Metal Substrates: Suitable metal substrates include non-galvanized steel,
stainless steel, copper, aluminum and lead. Metal substrates must be fully
supported, firmly attached and rigid with no flexing or vibration. In addition to the
general surface contaminants listed above, metal surfaces shall be free of rust or
corrosion. Remove by sand blasting, wire brush, or other mechanical means and
prime immediately with TEC
®
Multipurpose Primer to prevent surface rusting.
Storage
Store locked up in a cool, dry area, away from direct sunlight. Do not store open
containers.
Shelf Life
Maximum 1 year from date of manufacture in properly stored, unopened plastic
package. Maximum 9 months from date of manufacture in properly stored,
unopened paper package.
Limitations
• For interior use only.
• Do not apply when the temperature is below 50°F (10°C).
• Not for use in conditions of hydrostatic pressure or excessive moisture.
• Do not apply over sealed concrete, tempered hardboard (e.g. Masonite), particle
board, or lauan plywood.
• Level Set
®
500 HF is not a wear surface and should be protected from
construction trade traffic until the final floor covering is applied. Do not allow
heavy or sharp metal objects to be dragged directly across the Level Set
®
500
HF surface.
Cautions
Read complete cautionary information printed on product container prior to use.
For medical emergency information, call 1-888-853-1758.
This Product Data Sheet has been prepared in good faith on the basis of
information available at the time of publication. It is intended to provide users with
information about and guidelines for the proper use and application of the covered
TEC
®
brand product(s) under normal environmental and working conditions.
Because each project is different, H.B. Fuller Construction Products Inc. cannot
be responsible for the consequences of variations in such conditions, or for
unforeseen conditions.
4. TECHNICAL DATA
Level Set
®
500 HF Self-Leveling Underlayment (500)
Description Typical Results
28 Day Compressive Strength >4,500 psi (31.03 MPa)
28 Day Flexural Strength >2,000 psi (13.79 MPa)
28 Day Shrinkage <0.07%
Greater than: > Greater than or equal to: ≥ Less than: < Less than or equal to: ≤
Physical Properties
Description
Physical State Dry powder
Color Gray
Working Time 40-60 minutes
Heal Time (ASTM C1708) 30-40 minutes
Walkable 2-3 hours
Flooring Installation
Moisture sensitive floor covering: 15 hours
Ceramic: 2-3 hours
Speed of Flow (ASTM C1708
ISO 8 capillary flow cup)
15-20 seconds
Flow (ASTM C1708) 6 (+/- 0.2) inches
Storage
Store locked up in a cool, dry area, away from
direct sunlight. Do not store open containers.
Shelf Life
Maximum 1 year from date of manufacture in
properly stored, unopened plastic package.
Maximum 9 months from date of manufacture in
properly stored, unopened paper package.
5. INSTALLATION INSTRUCTIONS
Mixing
Mix 2-3 bags of Level Set
®
500 HF at a time. In a clean, appropriate sized
container, add 6.5 qts. (6.2 L) of clean, cool potable water for EACH 50 lb.
(22.68 kg) bag. Next add the Level Set
®
500 HF, while mixing at full speed using
an egg-beater mixing blade attached to a heavy-duty
1
⁄
2
" (12 mm) drill (minimum
650 rpm). Do not add extra water. Mix completely for a minimum of 2 minutes
until lump free, adding no additional water. Avoid overwatering, over mixing or
moving the mixer up and down during mixing as this will entrap air, lower the
strength and may cause cracking and/or pin holing. The formation of a white
film on the surface is an indication of overwatering. To keep the job moving, it is
recommended that two mixing drums be used simultaneously. This will allow one
mixing container to be poured while the other is being mixed.
For applications utilizing a pumping system: Level Set
®
500 HF can be
mechanically mixed using either an in-line continuous mixer and pump or a
batch mixer and pump using 6.5 qts. (6.2 L) clean potable water for EACH 50lb
(22.68 kg) bag of powder. The minimum required hose length is 100 ft. (30.5 m)
for in-line continuous mixers. For horizontal applications greater than 300 ft.
(91.4 m) and vertical applications greater than 40 ft. (12.2 m) contact TEC
®
Technical Services at 800-832-9023.
Before starting, ensure the mixer and pumps are completely clean and in good
working order. Refer to the manufacturer instructions for specific maintenance
and cleaning. Prior to Level Set
®
500 HF installation, adjust the pump to ensure
proper mixing and a uniform distribution of sand is achieved throughout the mix.
Do not overwater as this will lower the strength and may cause cracking and/or
pin holing. To avoid segregation and over watering during installation, the water
settings may require adjusting. Check the product consistency to ensure a uniform
distribution of the aggregates during pumping. The conditions that can affect the
overall performance are, but not limited to, length of hose, water temperature,
water pressure, substrate, ambient air temperature, and powder temperature. On
the end of the hose attach a mesh-screen sock to trap any foreign or unmixed
material. Always test pump using the actual maximum hose length and conditions
before installation to ensure proper application and appearance is achieved. Test
the mixed material periodically from the pump to ensure suitable mix and flow
prior to general application.
TEC
®
Level Set
®
500 HF Self-Leveling Underlayment Product Data