DESCRIPTION
Mapelastic AquaDefense is a premixed, advanced liquid-rubber, extremely
quick-drying waterproofing and crack-isolation membrane for installation under
ceramic tile or stone in residential, commercial and industrial environments.
Mapelastic AquaDefense provides a thin, continuous barrier to protect adjacent
rooms and floors below from water damage. For common problem areas like
coves, corners, cracks and drains, it can be combined with MAPEI’s optional
Reinforcing Fabric or Mapeband
accessories (cove roll and drain flash) to
provide additional protection. Mapelastic AquaDefense dries after about 30 to
50 minutes and is then ready to receive any MAPEI polymer or epoxy mortar.
Mapelastic AquaDefense can be flood-tested after 12 hours of drying time,
is IAPMO-listed for use as a shower-pan liner, and exceeds ANSI A118.10
and ANSI A118.12 standards.
FEATURES AND BENEFITS
Very quick drying: Install tile after 30 to 50 minutes of drying time.
Time-saving: Flood-test as shower-pan liner after 12 hours of drying time.
Apply with roller or brush – easy to install over flat, curved or irregular
surfaces
Bonds to a wide range of surfaces; convenient, user-friendly and versatile
No odor; great for confined spaces
Prevents in-plane floor cracks from transmitting through tile or stone
INDUSTRY STANDARDS AND APPROVALS
ANSI: Exceeds A118.10 standard (Waterproofing Membranes for Thin-Set
Ceramic Tile) and A118.12 standard (Crack-Isolation Membranes for Thin-
Set Ceramic Tile)
ASTM: C627 (Robinson) service rating of Extra Heavy
ASTM: E96, Procedure E (Desiccant Method) at 100°F (37.8°C), meeting
requirements of < 0.5 perms
IAPMO: Listed for use as shower-pan liner
IAPMO File #3996
ICC Evaluation Service Report ESR 3474
WHERE TO USE
Residential and commercial interior/exterior floors, walls and ceilings
Industrial interior floors and walls
Tub and shower surrounds: Bathrooms; kitchens; food prep, dishwashing,
servery and cafeteria areas; countertops; and laundry rooms
Residential and commercial submerged applications: Freshwater pools,
fountains and water features (completely covered by ceramic tile)
Cantilevered balconies and decks over unoccupied space (see the
“Limitations” section below)
Balconies and decks over occupied space when used in conjunction with
a primary waterproofing membrane
Steam rooms and steam showers (refer to TCNA handbook’s sections
SR613 and SR614, or TTMAC 319SR and 321SR)
Meets ASTM E96 Procedure E for a low-perm waterproof membrane
In-plane crack isolation up to 1/8" (3 mm) over nonstructural cracks
MAPEI's Reinforcing Fabric is available but optional for use on coves,
corners and field application.
Premium
Waterproong and
Crack-Isolation
Membrane
Mapela
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Version: February 16, 2021
LIMITATIONS
Mapelastic AquaDefense is not for use over structural
cracks, in-plane cracks beyond 1/8" (3 mm) or where
vertical out-of-plane movement occurs.
Do not use over substrates containing asbestos,
dimensionally unstable substrates such as hardwood
flooring, particleboard, oriented strand board (OSB),
Masonite or metal. See "Suitable Substrates" section
below.
Do not use over: Plank flooring, treated plywood,
Lauan, gypsum-based floor-patching compounds,
vinyl, glazed tile, laminate, fiberglass or epoxy floors,
or storage tanks.
Do not use where excessive substrate moisture and/or
where negative hydrostatic pressure exists. Maximum
allowable moisture is 8 lbs. per 1,000 sq. ft. (3.63 kg per
92.9 m
2
) per 24 hours per ASTM F1869 or up to 85%
relative humidity as measured with moisture probes.
Do not use: As a single-application roof-deck membrane,
wear surface or primary waterproofing membrane on
balconies or decks directly over occupied space or in
storage tanks; or with premixed setting materials.
Do not allow direct contact with solvent-based materials.
Consult MAPEI’s Technical Services Department for
installation recommendations regarding substrates and
conditions not listed.
SUITABLE SUBSTRATES
Interior and exterior
Concrete cured for at least 28 days – see the
“Limitations” section above
Masonry walls of cement block or brick
Cured cement mortar beds or leveling coats
Cement backer units (CBUs) – see manufacturer’s
installation guidelines
Interior only
Gypsum wallboard (walls only, in approved application
areas only)
Radiant-heated substrates
Unglazed ceramic tile and cement terrazzo floors, and
gypsum underlayments with a minimum of 2,500 psi
(17.2 MPa) in compressive strength
Note: Existing unglazed ceramic tile must be abraded,
and existing cement terrazzo must be mechanically
profiled. Both must be skimcoated with an appropriate
MAPEI latex- or polymer-modified mortar.
Plywood underlayments must be a Group 1 exterior-
grade plywood CC-plugged or better, conforming
to APA classification and U.S. Product Standard PS
1-95 or a “SELECT” or (SEL-TF) CANPLY classified
exterior-grade plywood conforming to CSA-0121
standard for Douglas fir for direct-bond applications
(interior, residential and light commercial floors and
countertops in dry conditions only).
PVC, copper, brass and stainless-steel pipe penetrations
(abraded by sandpaper)
Tile Council of North America (TCNA)
Statement on Deection Criteria
Floor systems, including the framing system
and subfloor panels, over which tile will be
installed should be in conformance with the IRC
[International Residential Code] for residential
applications, the IBC [International Building
Code] for commercial applications, or applicable
building codes.
Note: The owner should communicate in
writing to the project design professional and
general contractor the “intended use” of the tile
installation, in order to enable the project design
professional and general contractor to make
necessary allowances for the expected live load,
concentrated loads, impact loads, and dead loads
including the weight of the tile and setting bed. The
tile installer shall not be responsible for any floor
framing or subfloor installation not compliant with
applicable building codes, unless the tile installer
or tile contractor designs and installs the floor
framing or subfloor.
SURFACE PREPARATION
All substrates should be structurally sound, stable, dry,
clean and free of any substance or condition that may
reduce or prevent proper adhesion.
Do not use chemicals (acid etching or stripping)
to prepare approved substrates.
Concrete substrates should have a concrete surface
profile of #2 per the International Concrete Repair
Institute (ICRI). Mechanically clean and profile by
diamond-cup grinding or other engineer-approved
method when necessary.
Substrate and room temperatures must be 45°F to
95°F (7°C to 3C) during and at least 24 hours after
application.
See the “Surface preparation requirements” reference
guide in the Tile & Stone Installation Systems section
of MAPEI’s Website.
MIXING
Before product use, take appropriate safety precautions.
Refer to the Safety Data Sheet for details.
1. Mix by hand before using.
2. Do not dilute with any other material.
3. Promptly wash tools with water after mixing.
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PRODUCT APPLICATION
Read all installation instructions thoroughly before installation.
Fill all cracks, control joints and gaps in corners and
coves that are greater than 1/32" (1 mm) with an
appropriate filler material. Force material into crack and
finish smooth with trowel. Let dry.
MAPEI’s optional Reinforcing Fabric may be used with
Mapelastic AquaDefense in any of the areas shown
below (see the “Optional Use of MAPEI’s Reinforcing
Fabric” section below).
• MAPEI’s Mapeband accessories (cove roll and drain
flashing) also may be used with Mapelastic AquaDefense
in any of the areas shown below (see the “Optional Use
of Mapeband Accessories” section below).
Pre-treat cracks, corners and coves (oor/wall
intersections)
1. For expansion and control joints, see the “Expansion
and Control Joints” section below.
2. Apply Mapelastic AquaDefense liquid 6" (15 cm)
on both sides of cracks, corners and coves with a
paintbrush or roller. Let dry to a light-green color.
3. Apply a second coat and let dry.
Pre-treat drains
1 Review drain manufacturer’s instructions for waterproof
membrane installation in conjunction with these
instructions.
2. Fill space between drain pipe and substrate with
appropriate expansion joint materials (typically foam
backer rod and sealant).
3. For drains with bolt-down collar and weep holes, loosen
and remove bolts from drain flange. Abrade drain flange
with sandpaper, and clean and dry thoroughly.
4. With paintbrush, apply a liberal coat over and around
drain flange. Let dry to a light-green color.
5. Apply a second coat and let dry.
Pre-treat openings around pipes and other
penetrations
1. Pack/fill the openings/spaces between drain pipe and
substrate with appropriate expansion joint materials
(typically foam backer rod and sealant).
2. Apply Mapelastic AquaDefense with brush around and
up onto floor or wall penetration. Let dry to a light-green
color.
3. Apply a second coat and let dry.
Complete the main area
1. Apply Mapelastic AquaDefense to the entire area to be
waterproofed (including previously coated areas such as
cracks, drains and penetrations) using a 3/8" (10 mm)
nap roller. Let dry to a light-green color.
2. Apply a second coat to the entire installation. Let dry
30 to 50 minutes before installing tile or stone.
3. Final dry thickness of first and second coats combined
in the main area should be about 20 mils at minimum
(about the thickness of a credit card).
4. Inspect and, as needed, recoat pinholes or areas not
completely covered. Let dry.
5. Apply bead of silicone or urethane sealant around drain
flange at drain throat to join Mapelastic AquaDefense to
the drain assembly. Leave no voids.
6. Bolt down collar to drain flange.
7. Where the Mapelastic AquaDefense coating ends on
any penetration, apply a bead of silicone or urethane
sealant.
CLEANUP
Remove excess Mapelastic AquaDefense (while
fresh) with damp sponge, soap and warm water.
Any completely dried material may be mechanically
removed.
PROTECTION
Protect from foot traffic, rain and freezing for 24 hours.
Protect installed Mapelastic AquaDefense from
contamination, excessive heat and extended sun
exposure until tile or stone is installed.
FLOOD-TESTING (per ASTM D5957)
If flood-testing is required, allow Mapelastic AquaDefense
to cure at least 12 hours at 73°F (23°C) and 50% relative
humidity. Actual curing time depends on air and substrate
temperature, substrate porosity and humidity. Expect shorter
drying times in warmer conditions, and longer drying times
in cooler conditions.
INSTALLING CERAMIC TILE
OR NATURAL STONE
1. Mapelastic AquaDefense is ready to receive thin-set
mortars for tile or stone when dry to touch (about 30 to
50 minutes after applying second coat).
2. Let Mapelastic AquaDefense cure for at least 8 hours
before installing large-and-heavy-tile mortars (for large
tile or stone), screeds (for leveling floors) or epoxy
adhesives.
3. For tile and stone installations, use a MAPEI polymer-
modified mortar meeting ANSI A118.4, ANSI A118.11
or ANSI A118.15, or an epoxy mortar meeting ANSI
A118.3. For the installation of resilient or wood flooring
over Mapelastic AquaDefense, adhere to the adhesive
recommendations or limitations for use over nonporous
substrates.
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EXPANSION AND CONTROL
JOINTS
Installation with Mapeband:
Installation with MAPEI's Reinforcing Fabric:
1. Provide for expansion and control joints as specified
per TCNA Method EJ171 or TTMAC Specification Guide
09 30 00, Detail 301EJ. Do not cover expansion joints
with mortar.
2. If waterproofing integrity is required in expansion and
control joints, provide per the above drawing. MAPEI’s
Reinforcing Fabric or Mapeband can be embedded into
the Mapelastic AquaDefense liquid, allowed to dry and
filled with appropriate joint sealant or an expansion
molding system.
3. Protect tilework with metal strips (edge metal) along
both edges of structural building expansion joints.
Contact MAPEI’s Technical Services Department for more
information.
OPTIONAL USE OF MAPEI’S
REINFORCING FABRIC
Select fabric size (see packaging chart)
For coves (floor/wall intersections), allow for 2" (5 cm)
of fabric on the floor and 4" (10 cm) up the wall. For
cracks, control joints and vertical corners, allow for 3"
(7.5 cm) of fabric on each side.
For drains, cut desired fabric size from 38" (97-cm) wide
roll. For floor or wall penetrations, use 6" (15-cm) wide,
38" (97-cm) wide or a combination of both.
For large areas, the 38" (97-cm) wide roll is recommended.
Cut fabric to size
Cut all required pieces. Set aside.
Pre-treat cracks, control joints, corners, coves,
drains, and oor and wall penetrations
1. Apply Mapelastic AquaDefense as described in the
“Pre-treat” sections above.
2. Lay pre-cut pieces of fabric into wet Mapelastic
AquaDefense. Use brush to press fabric into corners until
liquid comes through fabric. Work out any wrinkles or
bubbles.
3. While fabric is wet, apply additional Mapelastic
AquaDefense over fabric until completely covered to
create void-free surface. Let dry to a light-green color.
4. Apply a second coat and let dry.
Install fabric on main area
1. Apply the first coat of Mapelastic AquaDefense
(including areas previously coated) using a 3/8"
(10-mm) nap roller.
2. Place fabric into wet liquid on the floor. Using a roller,
apply pressure to the fabric, working out wrinkles
or bubbles while forcing Mapelastic AquaDefense to
come through the fabric. Overlap seams and ends of
the fabric by 2" (5 cm). While fabric is still wet, apply
additional Mapelastic AquaDefense over the fabric until
completely covered, creating a void-free surface. Let
dry completely to a light-green color.
3. Apply a second coat of Mapelastic AquaDefense to the
entire area. Let dry.
4. Give a final inspection, looking for pinholes, areas not
completely covered and other defects.
5. Recoat as needed. Let dry to a light-green color.
6. Apply a bead of commercial-grade silicone or urethane
sealant between the membrane and the drain flange,
about 1/2" (12 mm) in from the drain opening.
7. Bolt the drain collar into place while the sealant is still
fresh.
8. Install ceramic tile or natural stone per the “Installing
ceramic tile or natural stone” section above.
OPTIONAL USE OF MAPEBAND
ACCESSORIES
• MAPEI’s Mapeband accessories (cove roll and drain
flashing) are waterproof, vapor-proof thin, elastic,
deformable, rubber-coated fabric pieces that are fully
compatible with Mapelastic AquaDefense and provide
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Sealant
(depth is 1/2 width)
Rounded backup
(with no bond to sealant)
Bond
coat
Compressible
backup
Tile
Mapelastic AquaDefense
Bond-breaker tape
Concrete floor
MAPEI’s Reinforcing Fabric
Sealant
(depth is 1/2 width)
Rounded backup
(with no bond to sealant)
Bond
coat
Compressible backup
Concrete floor
Tile
Mapelastic
AquaDefense
Mapeband
Continued on Page 6
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Product Performance Properties
Laboratory Tests Results
pH 9
Viscosity Approximately 30,000 cps
Density 1.3 g per mL
Weight 10.9 lbs. per U.S. gal. (1.3 kg per L)
Shelf Life and Product Characteristics before mixing
Shelf life (Mapelastic AquaDefense)
2 years when stored in original, unopened packaging at
73°F (23°C)
Physical state Liquid
Color Light bluish green when wet; light green when dry
Shelf life (optional Reinforcing Fabric)
Unlimited when stored in original, unopened packaging at
73°F (23°C)
Storage Store in a cool, dry place.
Protect containers from freezing in transit and storage. Provide for heated storage on site and deliver all materials at least
24 hours before work begins.
Application Properties at 73°F (2C) and 50% relative humidity
Flash point (Seta flash) Nonflammable
VOCs (Rule #1113 of California's SCAQMD) 0 g per L
VOCs (CDPH Standard Method v1.2-2017, CA 01350) Passed
Drying time between first and second coats When light green and dry to the touch
Drying time after second coat (before applying ceramic
tile or stone)
About 30 to 50 minutes (when light green and dry to the
touch)
Drying time before flood-testing After 12 hours
Final dry thickness (2 coats) About 20 mils at minimum (about credit-card thickness)
Freeze/thaw stability (liquid) Up to 5 cycles at 32°F (0°C)
Packaging (Mapelastic AquaDefense)
Size Approximate Coverage (per 2 coats)*
Pail: 1 U.S. gal. (3.79 L) – 4-pack 60 sq. ft. (5.57 m
2
)
Pail: 3.5 U.S. gals. (13.2 L) 210 sq. ft. (19.5 m
2
)
Pail: 5 U.S. gals. (18.9 L) 300 sq. ft. (27.9 m
2
)
Drum: 55 U.S. gals. (208 L) – special order 3,300 sq. ft. (307 m
2
)
* Coverage shown is for estimating purposes only. Actual jobsite coverage may vary according to substrate conditions, concrete
profile and porosity, type of equipment used, thickness applied, handling and application procedures.
Packaging (optional Reinforcing Fabric)
Size Coverage
Roll: 6" x 75' (15 cm x 22.9 m), 8 per box – To reinforce
over cracks, control joints, corners, coves and floor/wall
penetrations
37.5 sq. ft. (3.48 m
2
) per roll
Roll: 38" x 75' (97 cm x 22.9 m), 1 per box – To reinforce
around drains or main area to be waterproofed
237.5 sq. ft. (22.1 m
2
) per roll
Packaging (Mapeband waterproong accessories)
Size and Color
Drain flashing (blue): 16.75" x 16.75" (43 x 43 cm)
Cove roll (blue): 4.75" x 163 ft. (12 cm x 49.7 m)
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warranty information, visit www.mapei.com.
All Rights Reserved. © 2021 MAPEI Corporation.
LEGAL NO TICE
The contents of this Technical Data Sheet (“TDS”)
may be copied into another project-related
document, but the resulting document shall not
supplement nor replace requirements per the
TDS in effect at the time of the MAPEI product
installation. For the most up-to-date TDS and
warranty information, please visit our website at
www.mapei.com. ANY ALTERATIONS TO THE
WORDING OR REQUIREMENTS CONTAINED
IN OR DERIVED FROM THIS TDS SHALL
VOID ALL RELATED MAPEI WARRANTIES.
Before using, the user must determine the
suitability of our products for the intended use,
and the user alone assumes all risks and liability.
ANY CLAIM SHALL BE DEEMED WAIVED
UNLESS MADE IN WRITING TO US WITHIN
FIFTEEN (15) DAYS FROM DATE IT WAS,
OR REASONABLY SHOULD HAVE BEEN,
DISCOVERED.
RELATED DOCUMENTS
Reference guide: “Surface preparation requirements” for
tile and stone installation systems*
* At www.mapei.com
Refer to the SDS for specific data related to health and safety
as well as product handling.
For information on MAPEI’s commitment to sustainability
and transparency, as well as how MAPEI products may
contribute to green building standards and certification
systems, contact sustainability_USA@mapei.com (USA)
or sustainability-durabilite@mapei.com (Canada).
the ultimate in “change-of-plane” waterproofing
protection for coves, corners and drains. Mapeband
accessories are ideal for environments requiring
waterproofing but also where temperature extremes,
freeze/thaw conditions, vibrations, etc., can cause
waterproofing problems.
Mapeband cove roll can be used in place of MAPEI’s
Reinforcing Fabric on coves, corners and control joints.
The “felt side” should face into the corner.
Mapeband drain flashing can be used in place of
MAPEI’s Reinforcing Fabric on drains. The “felt side”
should face down.
• See Mapeband’s Technical Data Sheet for installation
details.
MAPEI Headquarters of North America
1144 East Newport Center Drive
Deerfield Beach, Florida 33442
1-888-US-MAPEI (1-888-876-2734) /
(954) 246-8888
Technical Services
1-800-992-6273 (U.S. and Puerto Rico)
1-800-361-9309 (Canada)
Customer Service
1-800-42-MAPEI (1-800-426-2734)
Services in Mexico
0-1-800-MX-MAPEI (0-1-800-696-2734)
Edition Date: February 5, 2021
MK 3002103 (21-1225)
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