Anti-Fracture Membranes

How do I install LATICRETE^® Blue 92 Anti-Fracture Membrane or LATICRETE 9235 Waterproofing Membrane (as an anti-fracture membrane)?

LATICRETE 9235 Waterproofing Membrane and LATICRETE Blue 92 Anti-Fracture Membrane are a cold-applied, liquid rubber polymers which are used with LATICRETE Waterproofing/Anti-Fracture Fabric. The liquid is applied with a paint roller or paint brush and the fabric is embedded into the liquid until the liquid bleeds through the fabric. A top coat of the membrane liquid is immediately applied over the fabric. LATICRETE Latasil^TM is applied at adjoining surfaces, drains connections and pipe penetrations.

How do I install LATICRETE^® Hydro Ban^TM as an anti-fracture membrane?

LATICRETE^® Hydro Ban is a cold-applied, liquid rubber polymer which is applied with a paint roller, paint brush or airless paint sprayer. No membrane reinforcing fabric is typically required. The first liquid coat must be completely dry to the touch prior to applying the second coat of membrane liquid. LATICRETE Hydro Ban will change from a sage green color to an olive green color when dry. The second liquid coat can then be aplied and must also dry to the touch. A LATICRETE Latex-fortified thin-set (e.g. LATICRETE 254 Platinum) may be used to install most types of tile or stone directly to the LATICRETE Hydro Ban. Please refer to the LATICRETE Hydro Ban data sheet and LATICRETE Hydro Ban Installation Instructions for more complete information.

What is the coverage of LATICRETE^® Blue 92 Anti-Fracture Membrane and LATICRETE 9235 Waterproofing Membrane?

One full unit consists of 6 gallons (23 liters) of LATICRETE 9235 Waterproofing Membrane liquid and LATICRETE Waterproofing/Anti-Fracture Fabric and will cover approximately 300 ft²(27m²).

One mini unit consists of 2 gallons (7.6 liters) of LATICRETE 9235 Waterproofing Membrane liquid and LATICRETE Waterproofing/Anti-Fracture Fabric to cover approximately 75 ft²(6.8m²).

What is the coverage of LATICRETE^® Hydro Ban^TM?

One full unit consists of 5 gallons (19 liters) of LATICRETE Hydro Ban liquid and will cover approximately 250 ft²(23.2m²).

One mini unit consists of 1 gallon (3.8 liters) of LATICRETE Hydro Ban liquid to cover approximately 50 ft²(4.65m²).

What substrates can LATICRETE^® 9235 Waterproofing Membrane, LATICRETE Blue 92 Anti-Fracture Membrane and LATICRETE Hydro Ban^TM be directly applied to?

Clean, structurally sound concrete, exterior glue plywood (interior only), masonry surfaces, gypsum wallboard (interior only), cement boards and cement plasters. For applications in exterior conditions over occupied areas or applications where tile or stone will be installed over wood-framed decks - see LATICRETE Plaza and Deck System (DS 290.0).

How soon can I install LATICRETE^® 9235 Waterproofing Membrane or LATICRETE Blue 92 Anti-Fracture Membrane over:

New Concrete - minimum 14 days at 70°F (21°C)
Latex mortar beds - next day at 70°F (21°C)
Leveling or patching materials - allow a full 72 hour cure time at 70°F (21°C).
NOTE: Most importantly for all substrates above; the substrate moisture content must not exceed 5 lbs./1,000 ft²/24 hours (283µg/s•m²) when tested using the Calcium Chloride test (ASTM F1869) or 75% Relative Humidity (RH) when tested with moisture probes (ASTM F2170).

How soon can I install LATICRETE^® Hydro Ban^TM over:

New Concrete - minimum 14 days at 70°F (21°C) and NOTE below.
Latex mortar beds - next day at 70°F (21°C) and NOTE below.
Leveling or patching materials - allow a full 72 hour cure time at 70°F (21°C) and NOTE below.
NOTE: Most importantly for all substrates above; the substrate moisture content must not exceed 5 lbs./1,000 ft²/24 hours (283µg/s•m²) when tested using the Calcium Chloride test (ASTM F1869) or 75% Relative Humidity (RH) when tested with moisture probes (ASTM F2170).

What adhesives are acceptable for installing tile over LATICRETE^® 9235 Waterproofing Membrane, LATICRETE Blue 92 Anti-Fracture Membrane and LATICRETE Hydro Ban^TM?

Some options are:
LATAPOXY^® 300 Adhesive (for chemical resistant installations and the installation of moisture sensitive stone): requires LATICRETE 9235 Waterproofing Membrane to cure for a full 7 days, or allow LATICRETE Hydro Ban to cure for 2 hours after the membrane has completely dried to the touch at 70°F (21°C), prior to installing tile or stone with LATAPOXY 300 Adhesive.
LATICRETE 4237 Latex Additive mixed with LATICRETE 211 Powder
LATICRETE 254 Platinum
LATICRETE 254R Platinum Rapid
LATICRETE 3701 Mortar Admix mixed with LATICRETE 317

If I find air bubbles or blisters in the LATICRETE^® Hydro Ban^TM, LATICRETE 9235 Waterrpoofing Membrane or LATICRETE Blue 92 Anti-Fracture Membrane, what can I do?

Cut out the bubble or blister to get back down to good, sound substrate. Apply a liberal coat of the waterproofing/anti-fracture membrane liquid and overlap 6" (150mm) onto the good membrane. Place the LATICRETE Waterproofing/Anti-Fracture Fabric (if required) into the liquid and make sure that liquid bleeds through the fabric. Immediately apply another coat of liquid over the area and allow to dry. If this is a waterproofing/anti-fracture application a final coat will be required over the dried second coat.

Can I use a mastic type adhesive to install tile over LATICRETE ^® Hydro Ban^TM, LATICRETE 9235 Waterrpoofing Membrane or LATICRETE Blue 92 Anti-Fracture Membrane?

No. A latex or polymer fortified thin-set adhesive complying with ANSI A118.4 is required to properly bond tile or stone to a LATICRETE waterproofing and/or anti-fracture membrane.

What is the warranty on LATICRETE^® 9235 Waterproofing Membrane, LATICRETE Blue 92 Anti-Fracture Membrane and LATICRETE Hydro Ban^TM?

Labor and materials replacement for 25 years from date of installation when using the full LATICRETE System as outlined in the LATICRETE Systems Warranty (DS 025.0); otherwise, every LATICRETE product is backed by a one year product warranty (DS 230.13) when used solely as an individual component of a tile or stone installation, when used with LATICRETE products not listed on the warranty document, or when used with competitor's products. For other warranty options please visit http:www.laticrete.com/architects/warranties.aspx.

Will LATICRETE^® 9235 Waterproofing Membrane, LATICRETE Blue 92 Anti-Fracture Membrane or LATICRETE Hydro Ban^TM control moisture or water from entering the underside of the tile system due to negative hydrostatic pressure or excessive moisture content?

No! LATICRETE 9235 Waterproofing Membrane and LATICRETE Hydro Ban are both designed to contain water from the positive side only. The use of these membranes is not recommended where negative hydrostatic pressure or excessive vapor transmission exists. When a moisture vapor reduction membrane is required, use LATAPOXY 312 Vapor Reduction Membrane.

What types of sealant are compatible with LATICRETE^® 9235 Waterproofing Membrane, LATICRETE Blue 92 Anti-Fracture Membrane or LATICRETE Hydro Ban?

Use LATICRETE Latasil^TM, a neutral cure, 100% silicone sealant which conforms to the following ASTM C920 standards; Type S, Grade NS, Class 25, Use NT, Use I, Use M, Use G. LATICRETE Latasil also passes ASTM C794 Adhesion Properties.

How do I treat the drains when using LATICRETE^® 9235 Waterproofing Membrane, LATICRETE Blue 92 Anti-Fracture Membrane or LATICRETE Hydro Ban?

You should use a 2-part clamping ring style drain (per ASME 112.6.3). LATICRETE 9235 Waterproofing Membrane or LATICRETE Hydro Ban must be installed down into the drain assembly and clamped down between the clamping ring of the drain. Once the waterproofing membrane is dry to the touch, use LATICRETE Latasil^TM and put a continuous bead of sealant between the waterproofing membrane and the clamping ring before bolting down the clamping ring.

Can I install vinyl tile over LATICRETE^® 9235 Waterproofing Membrane, LATICRETE Blue 92 Anti-Fracture Membrane or LATICRETE Hydro Ban^TM?

Yes - after the LATICRETE 9235 Waterproofing Membrane, LATICRETE Blue 92 Anti-Fracture Membrane or LATICRETE Hydro Ban is installed, use a latex based vinyl adhesive to adhere the vinyl tile to the membranes. Ensure that the adhesive contains no solvents. If there is a question as to the compatibility of the vinyl adhesive and the membrane, apply a continuous 1/8" (3mm) thick coating of a LATICRETE liquid latex thinset mortar to the membrane and allow to harden. Then install the vinyl flooring.

Can I install LATICRETE^® 9235 Waterproofing Membrane, LATICRETE Blue 92 Anti-Fracture Membrane or LATICRETE Hydro Ban over plywood in exterior applications?

No – LATICRETE 9235 Waterproofing Membrane and LATICRETE Hydro Ban are not intended for this installation. You must use the LATICRETE Plaza and Deck System for these applications.

When can I install tile over LATICRETE^® 9235 Waterproofing Membrane, LATICRETE Blue 92 Anti-Fracture Membrane or LATICRETE Hydro Ban?

As soon as the final liquid coat is completely dry to the touch.

Anti-Fracture Membranes