Installation Instructions

Product Data
Premium Wood Flooring Adhesive
1. PRODUCT NAME
TEC
®
Premium Wood Flooring Adhesive
(791)
2. MANUFACTURER
H.B. Fuller Construction Products Inc.
1105 South Frontenac Street
Aurora, IL 60504-6451 U.S.A.
800.552.6225 Office
800.952.2368 Fax
tecspecialty.com
3. DESCRIPTION
TEC
®
Premium Wood Flooring Adhesive is a ground-breaking development in
wood flooring adhesives that maximizes performance with installer-friendly
benefits. Unlike traditional urethanes and MS adhesives, TEC
®
Premium Wood
Flooring Adhesive delivers strong initial grab, sound deadening and crack bridging
capabilities in an installer-friendly formula that’s easy to apply and easy to clean.
Key Features and Benefits
• Apply to damp concrete (75-90% RH)
• Fast initial grab
• Notched trowel ridges hold firm
• Cleans easily from flooring with no solvents
• Up to 90 minutes of open time
• Isocyanate free/low odor
• Low VOC
• Contributes to LEED
®
certification
Packaging
1 gallon plastic pails (3.79 L) Product #7183185017
3.5 gallon plastic pails (13.24 L) Product #7183181217
Coverage
Determine recommended trowel size based on flooring type. Coverage will vary
with the absorption of substrate and trowel size. Figures below are presented only
as guidelines.
Flooring Type
Recommended
Trowel Size
Approximate Coverage in sq. ft. (m
2
)
Gallon 3.5 Gallon
Solid wood,
engineered wood
3
⁄
16
" x
1
⁄
4
" x
1
⁄
2
"
(4.5 x 6 x 12 mm)
FV trowel
60-70
(5.6-6.5)
210-245
(19.5-22.8)
Parquet
1
⁄
8
" x
1
⁄
8
" x
1
⁄
8
"
(3 x 3 x 3 mm)
square-notch trowel
60-70
(5.6-6.5)
210-245
(19.5-22.8)
Suitable Substrates
When properly prepared, suitable substrates include:
• Concrete slabs • Cured leveling compounds
• OSB (underlayment grade) • Radiant heated subfloors
• Plywood (underlayment grade) • Ceramic tiles
• Particle or chipboard (underlayment grade) • Stone, terrazzo
Approved Flooring
• Engineered wood flooring • Strip flooring
• Wood flooring shorts • Planks
• Solid wood flooring (must be straight and flat) • Parquet
• Bamboo flooring
Substrate Preparation
Prior to installation, the subfloor must be checked according to NWFA installation
guidelines. It must be solid and sound, flat, permanently dry, clean, free of chips,
indentations and anti-adherents, as well as resistant to pressure and tension.
Moisture content of all floors must be measured before installation. Moisture
content in concrete subfloors must be below 3 lbs./24 hours/1,000 sq. ft.
(1.36 kg/24 hours/93 m
2
) using the Calcium Chloride Test or below 75% RH
using an in-situ probe. For concrete with greater moisture levels, treat the
concrete with a moisture vapor barrier.
All wood floors should have a minimum 6-9% moisture content at installation.
There should be no more than a 4-5% variance in moisture content between
the wood flooring and any wood subfloor. See NWFA installation guidelines
and the wood flooring manufacturer’s recommendations for details.
Substrate must be sound, smooth, level, clean and dry. It must be free of dust,
dirt, wax, loose paint, all curing compounds or fire retardant chemicals, fungicides,
release agents, sealers, or any other foreign substances that might interfere with
a good bond. Depending on type and condition of subfloor, a mechanical treatment
(e.g. shot blasting, grinding or sanding) may be required. Intensity of such work
must be determined at the site by the installer. Dust, paint, residual adhesives*
or other surface pollution must be removed by suitable means. Cleaning the
surface with an industrial vacuum cleaner is recommended. Cracks and gaps must
be filled with concrete crack filler unless they are expansion joints. Level when
necessary to
3
⁄
16
" within 10' (4.5 mm in 3 m).
Substrate, adhesive and wood flooring must be acclimated in an enclosed building
with the HVAC operational and running for at least 72 hours before, during and
after the installation. The installation temperature and relative humidity must be
controlled between 60°F (15°C) and 85°F (30°C), and between 30% and 65%
relative humidity, subject to the floor manufacturer’s requirements. Open time will
vary with temperature and humidity or porosity of the substrate.
Note: Wood flooring must be exposed to the air when being acclimated. However,
follow the wood flooring manufacturer’s guidelines regarding site conditions
and installation.
* Cutback Adhesive Residue (non-asbestos) – Application over asphalt-based cutback adhesive
residue is acceptable provided the residue is well bonded and can achieve a minimum of
72 psi (0.5 MPa) tensile bond strength. Scrape and remove adhesive until all that remains
is a thin, transparent layer. NOTE: Mechanical removal of cutback by sanding, grinding or
blasting can be hazardous since old cutback adhesive may contain asbestos. Harmful dust
may result. Inhalation of asbestos dust may cause asbestosis or other serious bodily harm.
Consult all applicable government agencies for rules and regulations concerning the removal
of floorings and adhesives that contain asbestos. Tacky or pressure-sensitive adhesive must be
mechanically removed by a method such as shot blasting.
Storage
Store in cool, dry location. Do not store near heat or fire. Do not store
open containers.
Shelf Life
Maximum of 1 year from date of manufacture in unopened container.
Limitations
• Slab temperature should be between 50°F and 100°F (10°C and 38°C)
during installation.
• Do not use on wet, dusty, contaminated or brittle substrates.
• Do not use over substrates or slabs treated with sealers or curing compounds.
• Do not use in areas subject to hydrostatic pressure.
• Do not use over perimeter bonded flooring material.
• Below grade applications are limited to manufacturer’s recommendations
for approved wood flooring. Conditions for below grade applications must
meet a vapor emission rate < 3 lbs./1000 square feet per 24 hours
(1.36 kg/24hours/93 m
2
) based on the Calcium Chloride Test. If concrete
conditions exceed the allowable moisture content, please consult with a
TEC
®
technical advisor.
• Do not install solid wood flooring over cutback residue or over VCT/vinyl.
Refer to wood flooring manufacturer’s recommendation for proper expansion
relief around perimeter or throughout installation.
• Follow solid hardwood flooring installation recommendations for bamboo
installations.
• Will not prevent moisture-related damage to wood flooring installations.
• Use over gypsum based patch/underlayments is limited to dry, above grade
installations where gypsum has dried, and is free from dust or powder.
VOC 30 g/L,