Installation Instructions

Product Data
IsoLight
™
1
⁄8" (3 mm) Crack Isolation Mortar
1. PRODUCT NAME
TEC
®
IsoLight™
1
⁄8 " (3 mm) Crack Isolation Mortar
(358/359)
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
IsoLight™ Mortar is a lightweight, latex modified mortar that protects tile from up
to
1
⁄8 " (3 mm) substrate cracking from in-plane horizontal substrate movement. Its
unique "lightweight" formula provides 50 lb. (22.68 kg) coverage in a 30 lb. (13.6 kg)
bag. Formulated with Easy Trowel Technology™, IsoLight™ Mortar provides
superior handling and extended open time as compared to regular mortars,
improving speed and productivity. IsoLight™ Mortar exceeds ANSI A118.4, ANSI
A118.11 and A118.15 specifications and is rated for residential to extra heavy
commercial applications.
Key Features and Benefits
• 50 lb. (22.68 kg) coverage in a 30 lb. (13.6 kg) bag
• One-step
1
⁄8 " (3 mm) crack isolation
• Easy Trowel Technology™ provides superior handling
• Exceeds ANSI A118.4, A118.11 and A118.15 specifications
• Glass tile/non sag for walls
• Interior/Exterior use
• Extended open time
• Extra Heavy Duty Commercial rating
• Recycled content contributes to LEED
®
certification
Packaging
30 lb. (13.6 kg) moisture-resistant bags
Gray Product #7049363611
White Product #7049693611
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 30 lbs. (13.6 kg)
¼" x ¼" x ¼" (6 x 6 x 6 mm)
square-notch 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
)
1
⁄2" x
1
⁄2" x
1
⁄2" (12 x 12 x 12 mm)
square-notch trowel
40-50 sq. ft.
(3.7-4.6
m
2
)
3
⁄4" (19 mm)
rounded-notch trowel
30-40 sq. ft.
(2.8-3.7
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 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.
For installation over asphalt-based cutback adhesive, remove adhesive by
scraping until all that remains is a thin, transparent layer of adhesive residue.
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) 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 and 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 IsoLight™ Mortar.
• 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.
VOC 0. Product contains
recycled material.
Gray: 5% pre-consumer
White: 4% pre-consumer