Installation Instructions

Product Data
Sturdi Flex
™
Thin Set Mortar
1. PRODUCT NAME
TEC
®
Sturdi Flex™ Thin Set Mortar
(TA-345/346)
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
Sturdi Flex™ latex mortar offers steady, reliable bonding performance in most tile
applications, commercial or residential.
Key Features and Benefits
• Good handling
• Interior/exterior use
• Meets ANSI A118.4 and A118.11 specifications
Packaging
50 lb. (22.68 kg) moisture-resistant bags
Gray Product #3300253111
White Product #3300263111
Coverage
Coverage will vary with condition of substrate. Required trowel size will vary with
the tile size, type and substrate uniformity. Select the trowel size that will ensure
100% coverage. Figures below are presented only as guidelines.
Trowel Size
Approximate Coverage
per 50 lbs. (22.68 Kkg)
¼" x ¼" x ¼" (6 x 6 x 6 mm)
square-notched trowel
80-90 sq. ft.
(7.4-8.4 m
2
)
1
⁄4 " x
3
⁄8 " x
1
⁄4 " (6 x 9 x 6 mm)
square-notch trowel
55-65 sq. ft.
(5.1-6 m
2
)
Suitable Substrates
When properly prepared, suitable substrates include:
• Cured concrete, cured mortar beds, brick and masonry (interior and exterior
installations)
• APA Grade Trademarked Exposure 1 Plywood [Underlayment grade or better,
two layers, 1
1
⁄8 " (28 mm) total minimum thickness for joists 16" (40 cm) o.c.,
interior floors only].
• Gypsum wallboard (dry interior wall areas only)
• Water resistant gypsum wallboard (i.e.: greenboard, interior walls only, dry to
intermittent water exposure only)
• Cementitious backer units (CBU) or glass mat backerboard
• Existing ceramic tile and natural stone, provided existing flooring is well-bonded
to an approved substrate.
• Vinyl composition tile, asphalt tile, linoleum or non-cushioned vinyl sheet
goods provided such surfaces are single layered, well-bonded to an approved
substrate and properly prepared.
• Adhesive residue (except tacky or pressure-sensitive adhesive).
Substrate Preparation
All substrates must be dry, structurally sound with maximum deflection per
industry standards of
L
⁄360 for ceramic tile installations and
L
⁄720 for natural stone
installations; and free from oil, grease, dust, paint, sealers or concrete curing
compounds. All contaminants must be removed prior to installation of tile. Surface
protrusions and tile glazes shall be removed by sanding, scraping or scarifying.
After preparation, remove all dust by vacuuming.
Notes: Vinyl asbestos tile or any substrate containing asbestos must not be
sanded, scored or scarified because of the potential health hazard of
breathing dust. Any substrate containing asbestos must be handled in
accordance with existing EPA regulations. Contact your local EPA office.
Expansion joints must be provided in the tile work over all construction,
control and expansion joints in the backing and where backing materials
change. Follow ANSI A108.01 Section 3.7 Requirements for Expansion Joints.
Maximum variations in all substrates must not exceed
1
⁄4 " in 10 ft. (6 mm
in 3 m) or
1
⁄16 " in 1 ft. (1.6 mm in 0.3 m) from the required plane. For
non-level, interior surfaces use TEC
®
EZ Level
®
Premium Self Leveling
Underlayment.
Storage
Store in cool, dry location. Do not store open containers.
Shelf Life
Maximum of 1 year from date of manufacture in unopened package.
Limitations
• Not for installing green marble, other moisture-sensitive stone tile or resin-backed
marble; use TEC
®
AccuColor EFX
®
Epoxy Grout and Mortar.
• For non-green marble tile applications, use white thin set mortars.
• Not for use over rubber, strip wood floors, oriented strand board, particle board,
lauan plywood.
• For CDX plywood, use TEC
®
Super Flex™ mortar
• Do not apply over single layer wood floors.
• Temperature of area to be tiled must remain above 50°F (10°C) for 72 hours.
• Certain natural stone tiles may be affected by mortar shadowing or staining.
Test a small area prior to use to determine suitability.
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
Applicable Standard
Meets ANSI A118.4 and A118.11 specifications
Sturdi Flex™ Thin Set Mortar (TA-345/346)
Description ANSI Requirement Typical Results
28 Day Shear Strength
Glazed Wall Tile
Impervious Ceramic Tile (Porcelain)
Quarry Tile
> 300 psi (2.1 MPa)
> 200 psi (1.4 MPa)
> 150 psi (1.0 MPa)
> 350 psi (2.4 MPa)
325-350 psi
(2.2-2.4 MPa)
375 psi (2.6 MPa)
Sag on Vertical Surfaces ≤
1
⁄16 " (1.6 mm) <
1
⁄16 " (1.6 mm)
Open Time at Room Temperature ≥ 50 minutes 50-60 minutes
Adjustability at Room Temperature ≥ 30 minutes 30-40 minutes
Final Set 9-15 hours 13-15 hours
Tested in accordance with ANSI A118.11 Specifications for Latex-Modified Dry Set Mortars over Exterior Grade Plywood
28 Day Shear Strength
Quarry Tile 150 psi (1.0 MPa) 215 psi (1.5 MPa)
Greater than: > Greater than or equal to: ≥ Less than: < Less than or equal to: ≤
VOC 0. Product contains
recycled material.
Gray: 7% pre-consumer
White: 0%