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Underwater
Repair Materials
CEMENT BASED REPAIRS
FX‑70®‑8DP
Underwater Repair Mortar
CSI Specification 03 01 00 Maintenance of Concrete
FX‑70‑8DP Underwater Repair Mortar is a single‑component, rapid‑hardening, cementitious repair
mortar designed for hand‑pack applications underwater.
Where to Use
Limitations
Most underwater applications, including:
•Pools
•Piers
•Concrete aquariums
•Sumps and pits
•For optimal product performance, apply to
surfaces between 35°F (2°C) and 90°F (32°C)
•Condition material to 50°F
(10°C) prior to placement
•Maximum 160 fl. oz. (4.7 L) water
per 50 lb. (22.7 kg) bag
•Minimum application thickness
is 1/4 in. (9 mm) per lift
•Maximum application thickness
is 3 in. (76 mm) per lift
•Underwater product placement should
only be attempted by certified and
experienced diving contractors
•Avoid contact with aluminum surfaces
Features
•Ready to use, simply add potable water
•Dry pack by hand, no forming necessary
•Excellent bond, even underwater
Yield
•0.4 ft.3 (0.011 m3) per 50 lb. (22.7 kg) bag
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Packaging / SKU
•50 lb. (22.7 kg) bag
(FX70‑8DP)
•50 lb. (22.7 kg) pail
(FX70-8DPP)
Storage
Store dry between
40–95°F (4–35°C)
Color
Gray
Shelf Life
1 year in unopened
packaging
Simpson Strong‑Tie Company Inc. (800) 999-5099 | strongtie.com
Repair, Protection and Strengthening Systems for Concrete and Masonry
EPOXY REPAIR MATERIALS
FX‑225
Non-Shrink Underwater Grout
CSI Specification 03 01 00 Maintenance of Concrete
FX‑225 Non-Shrink Underwater Grout is a high-strength, non-metallic, non-segregating grout
designed with special anti-washout admixtures, corrosion inhibitors and polymers. FX‑225 can be
pumped or tremied underwater to grout machinery, fiberglass pile jackets and repair deteriorated
concrete without de-watering.
Where to Use
Limitations
•Concrete repairs in marine structures
•Underwater grouting applications
•Pile jacket repairs with the FX‑70®
structural repair system
•Seawall repairs without de-watering
•For optimal product performance, apply to
surfaces between 35°F (2°C) and 90°F (32°C)
•Minimum application thickness is 1 in.
(2.5 cm) neat, 2 in. (5.1 cm) extended
•Maximum application thickness
is 6 in. (15.2 cm)
•Maximum 134 fl. oz. (3.9 L) water per bag
•Continual agitation required to maintain fluidity
•Underwater product placement should
only be attempted by certified and
experienced diving contractors
Features
•Flowable and pumpable
•No de-watering or cofferdams required
•Shrinkage compensated
•Bonds well to concrete, even underwater
•May be extended with clean, washed
nominal 3/8 in. (0.9 cm) pea gravel
•Ready to use, simply add potable water
Packaging / SKU
•55 lb. (24.9 kg)
bag (FX225)
•1,000 lb. (454 kg). bulk
bag (FX225-B1000)
•2,500 lb. (1134 kg) bulk
bag (FX225-B2500)
Storage
Store dry between
40–95°F (4–35°C)
Shelf Life
1 year in unopened
packaging
Yield
Underwater
Repair Materials
•0.5 ft.3 (0.014 m3) per 55 lb. (24.9 kg) bag
•0.68 ft.3 (0.019 m3) per 55 lb. (24.9 kg) bag
extended with 30 lb. (13.6 kg) of pea gravel
F‑R‑PG14 ©2014
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59
Repair, Protection and Strengthening Systems for Concrete and Masonry
EPOXY REPAIR MATERIALS
FX‑70®-6MP
Multi-Purpose Marine Epoxy Grout
CSI Specification 03 63 00 Epoxy Grouting
FX-70®-6MP Multi-Purpose Marine Epoxy Grout is a three-component, 100% solids, moisturetolerant epoxy grout specifically designed for underwater applications as part of the FX‑70®
Structural Repair and Protection System.
Where to Use
Limitations
•As a high-strength epoxy grout
component of the FX‑70 structural
repair and protection system
•As a high-strength epoxy grout
in wet or dry applications
•As an underwater repair mortar
•For optimal product performance, apply to
surfaces between 40°F (4°C) and 90°F (32°C)
Features
•Easily pumped or poured
•High-strength, low absorption,
impact-resistant grout
•Can be placed underwater without de-watering
•Resistant to chemical and
aggressive water environments
Yield
•1.1 ft.3 (0.03 m3) for 3 US gallon
(11.4 L) + 2 bag mix
•1.4 ft.3 (0.04 m3) for 3 US gallon
(11.4 L) + 3 bag mix
Packaging / SKU
FX70-6MPKT3-2
contains:
•3 US gallon (11.4 L)
epoxy kit + (2) 50 lb.
(22.7 kg) bags of filler
FX70-6MPKT3-3
contains:
•3 US gallon (11.4 L)
epoxy kit + (3) 50 lb.
(22.7 kg) bags of filler
FX70-MPKT15-10
contains:
•15 US gallon (56.8 L)
epoxy kit + (10) 50 lb.
(22.7 kg) bags of filler
FX70-MPKT15-15
contains:
•15 US gallon (56.8 L)
epoxy kit + (15) 50 lb.
(22.7 kg) bags of filler
Color
Dark tan
Mixing Ratio
Epoxy: 2A:1B
Storage
Store dry between
40–95°F (4–35°C)
Underwater
Repair Materials
Shelf Life
2 years in unopened
packaging
60
F‑R‑PG14 ©2014
Simpson Strong‑Tie Company Inc. (800) 999-5099 | strongtie.com
Repair, Protection and Strengthening Systems for Concrete and Masonry
EPOXY REPAIR MATERIALS
FX‑771LV
CSI Specification 03 01 00 Maintenance of Concrete
FX‑771LV Low‑Viscosity High‑Modulus Epoxy is a two‑component, 100% solids, moisture‑tolerant
epoxy designed for gravity‑feed flood‑coat or pressure injection of concrete cracks and a grout
binder.
Specification Compliance
FX‑771LV exceeds the performance requirements of ASTM C881, Type I, Grade 1, Class B.
Where to Use
Limitations
•Pressure injection of static
•For optimal product performance, apply to
cracks up to 1/4 in. (6 mm)
surfaces between 40°F (4°C) and 90°F (32°C)
•Underwater pressure injection
•Material is a vapor barrier after cure. When
used as a grout or coating, concrete surface
•Gravity‑feed flood‑coat crack
must not exhibit an active moisture vapor drive.
filling on horizontal decks
•As a binder for anchor and base plate grouting •Not for use on exterior slab on-grade
coating applications
Features
•Not recommended for large exterior repairs
or applications subject to large thermal
•Low viscosity
change when used as a repair mortar
•Moisture tolerant, can be used on
•For
use in non‑moving cracks only
dry and damp (SSD) surfaces
•Not for use in actively leaking or seeping
•High‑strength formulation
cracks. Remove active hydrostatic
•Can be applied by squeegee or
pressure before attempting injection.
roller for flood‑coat applications
•For
cracks wider than ¼ in. (6 mm),
•Can be used with metered
consult a qualified engineer
pressure injection equipment
•Product may discolor if exposed
Yield
to direct sunlight
•231 in.3/US gal. (0.001 m3/L) neat
•When used as a base plate grout or
repair mortar, minimum application
•300–600 in.3/US gal. (0.0013–0.0026 m3/L)
thickness is 1/2 in. (13 mm). Maximum
when mixed 1-3 parts by volume with
installation depth is 3 in. (76 mm).
FX-701 Oven-Dried Graded Silica Filler
•When used as a binder, use FX‑701
•For flood-coat applications:
Oven‑Dried, Graded Silica Filler to
150–200 ft.2/US gal. (3.6–4.9 m2/L)
prevent encapsulating moisture
depending on surface profile and porosity
•Epoxy grouts can crack due to thermal
stress. Do not form more than 4 in. (102 mm)
beyond the plate to limit thermal cracking.
•Do not apply as a coating when the
relative humidity exceeds 90%
Packaging / SKU
•15 fl. oz. (444 mL)
side‑by‑side dual
cartridge (FX771LVCTG)
•3 US gallon (11.4 L) kit
(FX771LVKT3)
•15 US gallon (56.8 L) kit
(FX771LVKT15)
•150 US gallon
(567.8 L) kit
(FX771LVKT150)
Color
Mixed Epoxy: Light
Amber
Mixing Ratio
2A:1B
Mixed Viscosity
350 cps at 73°F (23°C)
Storage
Store dry between
40–95°F (4–35°C)
Shelf Life
2 years in unopened
packaging
Underwater
Repair Materials
Low‑Viscosity High‑Modulus Epoxy
Please note: This product has not been
evaluated for resisting long-term sustained
loads in anchor applications. Refer to the
current Anchoring and Fastening Systems
for Concrete and Masonry catalog or
www.strongtie.com for code-listed
structural anchoring adhesives.
F‑R‑PG14 ©2014
Simpson Strong‑Tie Company Inc. (800) 999-5099 | strongtie.com
61
Repair, Protection and Strengthening Systems for Concrete and Masonry
EPOXY REPAIR MATERIALS
FX‑791LVLPL
Low-Viscosity Long Pot Life Epoxy
CSI Specification 03 01 00 Maintenance of Concrete
FX‑791LVLPL Low-Viscosity Long Pot Life Epoxy is a two-component, 100% solids, moisturetolerant, long pot life epoxy designed for pressure injection of concrete cracks, gravity-feed
flood-coat crack filling applications, and as a grout binder for warm weather applications.
Specification Compliance
FX‑791LVLPL exceeds the performance requirements of ASTM C881, Type I, Grade 1, Class C.
Underwater
Repair Materials
Where to Use
Limitations
•Pressure injection of static
•For optimal product performance, apply to
cracks up to 1/4 in. (6 mm)
surfaces between 60°F (15°C) and 110°F (43°C)
•Gravity‑feed flood‑coat crack
•Material is a vapor barrier after cure. When
filling on horizontal decks
used as a grout or coating, concrete surface
must not exhibit an active moisture vapor drive.
•For underwater pressure injection
•As a binder for anchor and base plate grouting •Not for use on exterior slab on-grade
coating applications
Features
•For use in non-moving static cracks only
•Low viscosity
•Not for use in actively leaking or seeping
cracks. Remove active hydrostatic
•Moisture tolerant, can be used on
pressure before attempting injection.
dry and damp (SSD) surfaces
•For cracks wider than 1/4 in. (6 mm),
•Extended working time permits deep
consult a qualified engineer
penetration of cracks and porous surfaces
•Not
recommended for large exterior repairs
•High-strength formulation
or
applications
subject to large thermal
•Can be applied by squeegee, broom or roller
change when used as a repair mortar
for gravity-feed flood-coat applications
•Product may discolor if exposed
•Can be used with metered
to direct sunlight
pressure injection equipment
•When used as a base plate grout or
Yield
repair mortar, minimum application
thickness is 1/2 in. (13 mm). Maximum
•231 in.3/US gal. (0.001 m3/L) neat
installation depth is 3 in. (76 mm).
3
3
•300–600 in. /US gal. (0.0013–0.0026 m /L)
•When used as a binder, use FX‑701
when mixed 1-3 parts by volume with
Oven‑Dried, Graded Silica Filler to
FX-701 Oven-Dried Graded Silica Filler
prevent encapsulating moisture
•For flood-coat applications:
2
2
•Epoxy
grouts can crack due to thermal
150–200 ft. /US gal. (3.6–4.9 m /L)
stress. Do not form more than 4 in. (102 mm)
depending on surface profile and porosity
beyond the plate to limit thermal cracking.
•Do not apply as a coating when the
relative humidity exceeds 90%
Packaging / SKU
•3 US gallon (11.4 L) kit
(FX791LVLPLKT3)
•15 US gallon (56.8 L) kit
(FX791LVLPLKT15)
•150 US gallon
(567.8 L) kit
(FX791LVLPLKT150)
Color
Mixed Epoxy: Light
Amber
Mixing Ratio
2A:1B
Mixed Viscosity
400 cps at 73°F (23°C)
Storage
Store dry between
40–95°F (4–35°C)
Shelf Life
2 years in unopened
packaging
Please note: This product has not been
evaluated for resisting long-term sustained
loads in anchor applications. Refer to the
current Anchoring and Fastening Systems
for Concrete and Masonry catalog or
www.strongtie.com for code-listed
structural anchoring adhesives.
62
F‑R‑PG14 ©2014
Simpson Strong‑Tie Company Inc. (800) 999-5099 | strongtie.com
Repair, Protection and Strengthening Systems for Concrete and Masonry
EPOXY REPAIR MATERIALS
FX‑764
Splash Zone and Underwater Paste
CSI Specification 03 01 00 Maintenance of Concrete
FX‑764 Splash Zone and Underwater Paste is a two‑component, 100% solids, moisture‑tolerant,
non‑sag, trowel‑grade epoxy designed for use in underwater applications. FX‑764 is ideal for
underwater crack sealing, securing injection ports, anchoring, doweling, pinning, and general repair
of concrete, steel and wood.
Where to Use
Limitations
•Underwater repair of concrete, wood and steel •For optimal product performance,
apply to surfaces between 50°F
•Non‑structural underwater repair
(10°C) and 100°F (38°C)
of marine structures
•Minimum lift thickness of 1/8 in. (3 mm)
Features
•Maximum lift thickness of 2 in. (51 mm)
•May be applied underwater
•Underwater product placement should
•Hand mixed
only be attempted by certified and
experienced diving contractors
•Bonds well to wet surfaces
•Paste viscosity
Packaging / SKU
•1/2 US gallon (1.9 L) kit
(FX764KT2QT)
•2 US gallon (7.6 L) kit
(FX764KT2)
•4 US gallon (15.1 L) kit
(FX764KT4)
•10 US gallon (37.9 L) kit
(FX764KT10)
Color
Gray
Mixing Ratio
1A:1B
Storage
Store dry between
40–95°F (4–35°C)
Underwater
Repair Materials
Shelf Life
2 years in unopened
packaging
F‑R‑PG14 ©2014
Simpson Strong‑Tie Company Inc. (800) 999-5099 | strongtie.com
63