LATICRETE Hydro Ban XP Single Component Self-Curing Liquid Rubber Polymer Instruction Manual

LATICRETE Hydro Ban XP Single Component Self-Curing Liquid Rubber

Polymer

SUBSTRATE CONDITIONS

1.  Surfaces must be structurally sound, stable and rigid enough to support ceramic tile, stone, thin brick and similar finishes. Substrate deflection under all live, dead and impact loads, including concentrated loads, must not exceed L/360 for thin bed ceramic tile/brick installations or L/480 for thin bed stone installations where L=span length. For exterior vertical installations over framed construction, the substrate deflection under all live, dead and impact loads, including concentrated loads, must not exceed L/600 where L=span length.
2. For thin-bed ceramic tile installations when a cementitious bonding material will be used, including large and heavy format tile mortar (aka medium bed mortar): maximum allowable variation in the tile substrate – for tiles with edges shorter than 15″ (375 mm), maximum allowable variation is ¼” in 10′ (6 mm in 3 m) from the required plane, with no more than 1/16″ variation in 12″ (1.5 mm variation in 300 mm) when measured from the high points in the surface. For tiles with at least one edge 15″ (375 mm) in length, maximum allowable variation is 1/8″ in 10′ (3mm in 3m) from the required plane, with no more than 1/16″ variation in 24″ (1.5 mm variation in 600 mm) when measured from the high points in the surface. For modular substrate units, such as exterior glue plywood panels or adjacent concrete masonry units, adjacent edges cannot exceed 1/32″ (0.8 mm) difference in height.
3. Substrate beds shall be wood floated or lightly steel troweled.
4. Maximum amount of moisture in the concrete mortar bed substrate should not exceed 5 lbs/1,000 ft2/24 hrs (283 µg/s•m2) per ASTM F-1869 or 75% relative humidity as measured with moisture probes. Consult with finish material manufacturer to determine the maximum allowable moisture content for substrates under their finished material.
5. Surfaces should be between 32°F (0°C) and 90°F (32°C).
6. Provide minimum slope to drains of 1/4″ per 1′ (6 mm per 0.3 m).
7. Concrete and masonry must be free of curing agents, paint, sealers, water repellents or other treatments that prevent membrane bonding.
8. Plywood floors (interiors only) – minimum construction for direct bond: SUBFLOOR: 5/8″ (15 mm) thick, exterior glue, tongue and groove plywood over bridged 2″ x 10″ (40 mm x 240 mm nominal) joists spaced 16″ (400 mm) o.c. maximum; fasten plywood 6″ (150 mm) o.c. along sheet ends and 8″ (200 mm) o.c. along intermediate supports with 8d (65 mm) ring-shank nails or screws; allow 1/8″ (3 mm) between sheets; all sheet ends must be supported by a framing member; glue sheets to joists with construction adhesive; UNDERLAYMENT: 5/8″ (15 mm) thick exterior glue plywood fastened 6″ (150 mm) o.c. along sheet ends and 8″ (200 mm) o.c. in the panel field (both directions) with 8d (65 mm) ring-shank nails or screws; allow 1/8″ (3 mm) between sheets and 1/4″ (6 mm) between floor and any abutting surfaces; offset underlayment joints from joints in subfloor and stagger joints between sheet ends; glue underlayment to subfloor with construction adhesive.

Note: Do not bond to particle board, flake board, oriented strand board (OSB), luan, yellow pine, pressure/chemically treated wood, Masonite® or hardwood. Refer to Technical Data Sheet 152 for full details on plywood floors. SUBSTRATE

PREPARATION

1. Remove dust, dirt, oil, grease, paint, laitance, efflorescence, curing compounds, sealers, water repellents and other materials that prevent bond. Metal plumbing fixtures must be clean of oil, grease, rust and other potential bond breakers must be abraded with sandpaper or wire brush.
2. Dampen hot, dry surfaces and sweep off excess water – membrane can be installed over a damp surface.
3. Use 3701 Lite Mortar, 3701 Fortified Mortar Bed; or, 226 Thick Bed Mortar gauged with 3701 Mortar Admix; or, a latex underlayment, to patch, pitch, level, plumb or smooth substrates. Do not use gypsum or asphalt underlayments.
4. Existing ceramic/stone tile, glazed CMU or cement terrazzo must be cleaned and skim coated with approximately 1/8″ (3 mm) of 254 Platinum or other suitable latex thin-set mortar.

Tools Required Tape measure, mixing stick, paint roller with heavy napped roller cover, roller tray, paintbrush, water pail and sponge.

BONDING TO TCNA COMPLIANT POURED GYPSUM UNDERLAYMENT
Poured gypsum-based underlayments must meet TCNA requirements for compressive strength and the performance requirements of ASTM C627 for the anticipated service level designated by the design professional. Poured gypsum underlayment thickness and application varies, consult the manufacturer for specific recommendations. The underlayment must be dry and properly cured following the manufacturer’s recommendations to achieve a permanent installation. Surfaces to be covered must be clean, structurally sound and meet the maximum allowable deflection standard of L/360 for ceramic tile and L/480 for stone under total anticipated load. Expansion joints must be installed in accordance with ANSI/TCNA guidelines. Prime all surfaces to receive HYDRO BAN XP with properly applied manufacturer’s sealer or with a primer coat of HYDRO BAN XP, consisting of 1 part HYDRO BAN XP, diluted with 4 parts clean, cool tap water. In a clean pail, mix at low speed to obtain a homogeneous solution. The primer can be brushed, rolled or sprayed to achieve an even coat. Apply the primer coat to the floor at a rate of 250 to 300 ft2/gallon (6.1 to 7.5 m2/L) of diluted HYDRO BAN XP. Allow the primer coat to dry completely (approximately 24 hrs., depending on substrate and air temperature and humidity). When dry apply two full coats of HYDRO BAN XP to the primed area following the guidelines in this data sheet and DS 36642 HYDRO BAN XP Installation Instructions.

APPLICATION: HYDRO BAN® XP
Pre-Treat Cracks**, Cold Joints, Control Joints and Seams (See Illustration 1): Fill all substrate cracks, cold joints, control joints and seams to a smooth finish using a latex fortified thin-set. Alternatively for all substrate cracks, cold joints, control joints and seams less than 1/8″ (3 mm) apply a liberal coat^ of HYDRO BAN XP liquid approximately 8″ (200 mm) wide over the crack, joint or seam making sure that the crack, joint or seam is completely filled with HYDRO BAN XP liquid. HYDRO BAN XP can be applied with a paintbrush, paint roller (heavy napped roller) or a 3/16″ x 5/32″ (5 mm x 4 mm) V-notch trowel. When the first coat has dried to a uniform dark green color, apply a second liberal coat^ of HYDRO BAN XP liquid.
Pre-Treat Coves, Corners and Wall/Floor Transitions 1/8″ (3 mm) or less (See Illustration 2 and 4): Fill all coves, corners and wall/floor transitions to a smooth finish using a latex fortified thin-set. Alternatively, for all coves, corners and wall/floor transitions with a gap of 1/8″ (3 mm) or less apply a liberal coat^ of HYDRO BAN XP liquid at coves, corners, seams, joints and changes in substrate plane approximately 8″ (200 mm) wide making sure that the cove, corner or wall/floor transition is completely filled with HYDRO BAN XP liquid. HYDRO BAN XP can be applied with a paint brush, paint roller (heavy napped roller), a 3/16″ x 5/32″ (5 mm x 4 mm) V-notch trowel and airless sprayer. When the first coat has dried to a uniform dark green color, apply a second liberal coat^ of HYDRO BAN XP liquid.
On coves, corners and wall/floor transitions greater than 1/8″ (3 mm) Waterproofing/Anti-Fracture Fabric can also be used. Fold 6″ (150 mm) wide Waterproofing/Anti-Fracture Fabric in half and imbed it into the HYDRO BAN XP liquid, flashing Waterproofing/Anti-Fracture Fabric 3″ (75 mm) up walls. Apply second liberal coat^ of HYDRO BAN XP liquid to seal reinforcing Waterproofing /Anti-Fracture Fabric. Refer to INSTALLING FINISHES section for movement joint treatment at coves, corners and changes in the substrate plane.

Note 1: Wet coat thickness is 15-22 mils, 0.015″-0.022″ (0.4-0.6 mm); use wet film gauge to check thickness;
consumption/coat is approximately 0.01 gal/ft2 (0.4 L/m2); coverage/coat is approximately 100 ft2/gal (2.5 m2/L); Applied in 2 coats for a total dry thickness of 20-30 mils, (0.5-0.8 mm) for a total of 250 ft2 per 5 gallons/23.2 m2 per (18.9 L) pail.

Note: For coverage per unit, refer to the information printed HYDRO BAN XP liquid container.
Pre-Treat Drains (See Detail 1):
Drains must be of the clamping ring type, with weepers and as per ASME A112.6.3. Apply a liberal coat^ of liquid around and over the bottom half of the drain-clamping ring. When first coat is dry to a uniform dark green color covered with a second liberal coat^ of liquid. (When dry, apply a sealant bead e.g. LATASIL™ with LATASIL 9118 Primer sealant with appropriate primer at the drain throat.) Install top half of drain clamping ring. Refer to Detail 1 and 2, Illustration 7, and INSTALLING FINISHES section for information on completing drain treatment.
Pre-Treat Penetrations (See Illustration 6):
Pack any gaps around pipes, lights or other penetrations with a suitable latex-fortified thin-set mortar and allow to harden (eg. 254 Platinum). Apply a liberal coat^ of HYDRO BAN XP liquid onto and around the penetration. As an option, imbed pieces of 6″ (150 mm) wide Waterproofing/Anti-Fracture Fabric into the HYDRO BAN XP liquid. Cover with a liberal coat of HYDRO BAN XP liquid^. When first coat is dry to a dark green color cover with a second liberal coat^ of HYDRO BAN XP liquid. If necessary when dry, seal flashing with a sealant (eg. LATASIL with LATASIL 9118 Primer). Refer to Insert Detail WP300 for Detail 6 and INSTALLING FINISHES section for information on completing penetrations treatment.

Crack Isolation (Partial Coverage):
Crack suppression must be applied a minimum of 3 times the width of the tile or stone being installed. The tile installed over the crack cannot be in contact with the concrete.
Follow TCNA Method F125 for the treatment of hairline cracks, shrinkage cracks, and saw cut or control joints: Apply a liberal coat^^ of HYDRO BAN XP to a minimum of three (3) times the width of the tile using a paint roller or paint brush and allow to dry. After the first coat has dried to the touch, install a second liberal coat^ of HYDRO BAN XP over the first coat.
As an alternative; Apply a liberal coat^ of HYDRO BAN XP liquid, 3 times the width of the tile over the crack using a paint roller or paint brush and immediately apply the 6″ (150 mm) wide Waterproofing/Anti-Fracture Fabric into the wet liquid over the crack. Press firmly with brush or roller to allow complete “bleed through” of liquid. Immediately apply another liberal coat^ of HYDRO BAN XP liquid over the fabric and allow to dry. When the first treatment has dried, apply a liberal coat^^ of HYDRO BAN XP to over the first wide coat, using a paint roller or paint brush, and allow to dry. Treat closest joint to the crack, saw cut, or cold joint in the tile or stone installation with LATASIL.
^ Wet coat thickness is 15-22 mils, 0.015″- 0.022″ (0.4-0.6 mm); use wet film gauge to check thickness; consumption/coat is approximately 0.01 gal/ft2 (0.4 L/m2); coverage is approximately 100 ft2/gal (2.5 m2/L). Applied in two coats for a total dry coat thickness of 20-30 mils, 0.02-0.03″ (0.5- 0.8 mm); use wet film gauge to check thickness; consumption/coat is approximately 0.01 gal/ft2 (0.4 L/m2); coverage/coat is approximately 100 ft2/gal (2.5 m2/L); Applied in 2 coats for a total dry thickness of 20-30 mils, (0.5- 0.8 mm) for a total of 250 ft2 per 5 gallons/23.2 m2 per (18.9 L ) pail.

Main Application – HYDRO BAN XP (See Illustrations 3 and 5):
Allow any pre-treated areas to dry to the touch. Apply a liberal coat of HYDRO BAN XP liquid^ with brush or roller over substrate including pre-treated areas. Flash membrane up over pre-treated coves and corners, so such areas have two layers of HYDRO BAN XP liquid. Let dry to the touch, for approximately 1–2 hours at 70°F (21°C) and 50% RH. Apply another liberal coat^ of HYDRO BAN XP liquid over entire surface to seal membrane. When last coat has dried to the touch, inspect final surface for pinholes, voids, thin spots or other defects. Use additional HYDRO BAN XP liquid to seal defects. Coves, corners, seams and board joints must be pre-treated as described above.
Protection Provide protection for newly installed membrane, even if covered with a thin bed ceramic tile, stone or brick installation, against exposure to rain or other water for a minimum of 2 hours at 70°F (21°C) and 50% RH.
Flood Testing Allow membrane to cure fully before flood testing, typically 2 hours at 70°F (21°C) or above and 50% RH. Cold and/or wet conditions will require a longer curing time. For temperatures between 32°F (0°C) to 69°F (21°C) allow 24 hours for cure fully before flood testing. The time to flood testing begins when the membrane has dried to a uniform dark green color.

TIME TO TILE
Substrate  Time to Tile (min)

• Concrete  50    After second coat is applied at 70°F (21°C) and 50%
• Cement Board 30  RH. The time to tile will vary depending on substrate
• HardiBacker® 15  temperature and relative humidity.

INSTALLING FINISHES

Once the membrane has dried to the touch, ceramic tile, stone or brick may be installed by the thin-bed method with a latex thin-set mortar. Allow membrane to cure 2 hours at 70°F (21°C) and 50% RH before covering with concrete, thick bed mortar, screeds, toppings, coatings, epoxy adhesives, terrazzo or moisture-sensitive resilient or wood flooring. Do not use solvent-based adhesives directly on membrane.
Drains and Penetrations (See Illustration 7 and Detail 6):
Allow for a minimum 1/4″ (6 mm) space between drains, pipes, lights or other penetrations and surrounding ceramic tile, stone or brick. Use appropriate sealant (e.g. LATASIL with LATASIL 9118 Primer) and foam backer rod to seal space – do not use grout, joint filler or thin-set mortar.

Control Joints Ceramic tile, stone and brick installations must include sealant filled joints over any control joints in the substrate. However, the sealant filled joints can be offset horizontally, by as much as one tile width from the substrate control joint location, to coincide with the grout joint pattern. Refer to drawing Detail 3.

Movement Joints Ceramic tile, stone and brick installations must include movement joints at coves, corners, and other changes in substrate plane and over any movement joints in the substrate (refer to Details 4 and 5). Movement joints in the ceramic tile, stone and brick work are also required at perimeters, at restraining surfaces, at penetrations and at the intervals described in Tile Council of North America, Inc. (TCNA) Handbook For Ceramic Tile Installations Method EJ171. Use an appropriate foam backer rod and sealant (eg. LATASIL® with LATASIL 9118 Primer).

Movement Joints Note: Apply a liberal coat of HYDRO BAN® XP, approximately 8″ (200 mm) wide over the areas. Then embed and loop the 6″ (150 mm) wide Waterproofing/Anti-Fracture Fabric into the substrate movement joint and allow to bleed through. Then top coat with a second coat of HYDRO BAN XP liquid fully encapsulating the Waterproofing/Anti-Fracture Fabric.

LIMITATIONS

1. Do not install over structural cracks, cracks with vertical movement or cracks with >1/8″ (3 mm) horizontal movement.
2. Do not use as a primary roofing membrane over occupied space.
3. Do not expose to negative hydrostatic pressure, rubber solvents or ketones.
4. The membrane must be covered with ceramic tile, stone, brick, concrete, screeds, terrazzo or another protective surface. For the temporary cover, use a protection board.
5. Do not expose the membrane directly to sun or weather for more than 30 days.
6. Do not install directly over single-layer wood floors, plywood tubs/showers/fountains or similar constructs. For such cases, use 3701 Fortified Mortar Bed; or, 226 Thick Bed Mortar gauged with 3701 Mortar Admix over mechanically fastened lath. Install membrane once mortar has hardened and is sufficiently dry.
7. Review local building codes and obtain any required approvals before using HYDRO BAN XP in the shower pan applications.
8. Allow wet mortars/plasters (deck mud consistency) to cure for 72 hours at 70°F (21°C) prior to installing HYDRO BAN XP.

For more information concerning HYDRO BAN XP, please see Data Sheet 36642. Visit laticrete.com for SDS information.
NOTE: Design professional/specifier to detail and specify the appropriate gravel to protect weep holes from clogging at the drain areas.

References

• LATICRETE | International Construction Solutions Manufacturer

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