Installation Instructions
Product Data
Full Flex
®
Premium Thin Set Mortar
1. PRODUCT NAME
TEC
®
Full Flex
®
Premium Thin Set Mortar
(TA-390/391)
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
Known for its superior handling and engineered for dependability. Full Flex
®
Premium Thin Set Mortar is a contractor favorite. It’s designed for use over a
generous array of new or renovation substrates in residential to extra heavy duty
commercial applications. One step mixing, smooth and easy spreadability, prolonged
pot-life, extended adjustability time and excellent coverage make Full Flex
®
a
practical, real value.
Key Features and Benefits
• Mixes to a smooth, creamy consistency for superior handling
• Good for bonding porcelain tile
• Ideal for remodeling
• Interior/exterior use
• Exceeds ANSI A118.4 and A118.11 specifications
• One part—just add water and mix
Packaging
50 lb. (22.68 kg) moisture-resistant bags
Gray Product #3300363111
White Product #3300373111
25 lb. (11.34 kg) moisture-resistant bags
Gray Product #3300363011
White Product #3300373011
9.75 lb. Pure Pak* container (4.42 kg)
White Product #3300375311
*Registered trademark of Excello Corporation
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. 25 lbs. 9.75 lbs.
(22.68 kg) (11.34 kg) (4.42 kg)
¼" x ¼" x ¼" (6 x 6 x 6 mm)
square-notched trowel
95-105 sq. ft.
(8.8-9.8 m
2
)
48-53 sq. ft.
(4.5-5 m
2
)
19-21 sq. ft.
(1.8-2 m
2
)
1
⁄4
" x
3
⁄8
" x
1
⁄4
" (6 x 9 x 6 mm)
square-notch trowel
70-80 sq. ft.
(6.5-7.4 m
2
)
33-38 sq. ft.
(3-3.5 m
2
)
13-15 sq. ft.
(1.2-1.4 m
2
)
Suitable Substrates
When properly prepared, suitable substrates include:
• Uncoupling membrane
• 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.
• Plastic laminate (interior countertops only) provided the counter is structurally
sound and level.
• 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 shelf life is from date of manufacture in unopened package.
Moisture-resistant bag: 1 year Pure Pak: 1 year
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 or TEC
®
XtraFlex™ acrylic
mortar additive with TEC
®
Full Set Plus
®
thin set 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.
VOC 0. Product contains
recycled material.
Gray: 7% pre-consumer
White: 0%