Technical Specifications

Product Data
1Flex
®
Fast Set
Accelerated Crack Isolation Mortar
1. PRODUCT NAME
TEC
®
1Flex
®
Fast Set Accelerated Crack
Isolation Mortar
(TA-332)
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
1Flex
®
Fast Set cement-modified polymer mortar is a tile setting mortar that also
functions as a
1
⁄4 " (6 mm) crack isolation membrane. 1Flex
®
Fast Set has a unique
blend of exclusive acrylic spraydried polymers and hydraulic cement provides an
outstanding bond with virtually all ceramic and natural stone tile while providing up
to an extra-heavy duty commercial floor rating.
Key Features and Benefits
• One step crack isolation and tile setting mortar
• Tile ready to grout in 4 hours
• Non-staining white formulation suitable for ceramic tile and natural stone
• Just add water
• Isolates
1
⁄4 " (6 mm) horizontal movement of cracks and contraction (control)
joints
• Apply over new (green) concrete as little as 3 days old
• Up to extra-heavy duty commercial floor rating
• Exceeds ANSI A118.4, A118.11 and A118.15 specifications
Packaging
35 lb. (15.88 kg) moisture-resistant bags
White Product #70-0562-3411
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 35 lbs. (15.88 KG)
¼" x ¼" x ¼" (6 x 6 x 6 mm)
square-notched trowel
75-85 sq. ft.
(7-8 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
)
3
⁄4" (19 mm)
rounded-notch trowel
35-40 sq. ft.
(3.2-3.7
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, interior floors only, for up to
20" (50 cm) o.c. floor systems].
• Newly installed Maxxon
®
Gyp-Crete 2000
®
gypsum based underlayment (or
equivalent)
• Cementitious backer units (CBU) or glass mat backer board
• Existing ceramic tile and natural stone, provided existing flooring is well-bonded
to an approved substrate.
• 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. For high moisture vapor
emission concrete applications, the maximum acceptable moisture vapor emission
rate is 12 pounds per 1000 square feet (5.4 kg per 92.9 m
2
) per 24 hours when
evaluated by ASTM F1869 or 90% relative humidity per ASTM F2170.
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.
Expansion joints are not required in tile work over construction and
contraction (control) joints, provided:
a. Maximum crack width below the joint of
1
⁄4 " (6 mm)
b. Only horizontal movement of joint and/or crack
c. 1Flex
®
Fast Set is used for the entire floor installation
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
®
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
1Flex
®
Fast Set White:
• Not for installing green marble, other moisture-sensitive stone tile or resin-
backed marble; use TEC
®
AccuColor EFX
®
Epoxy Grout and Mortar.
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
1% pre-consumer
recycled material.