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WATERPROOFING
Questions about Waterproofing Membranes
How do I install LATICRETE® 9235 Waterproofing Membrane or LATICRETE Watertight™?
LATICRETE® 9235 Waterproofing Membrane and LATICRETE Watertight™ are liquids that are used with a reinforcing fabric. The liquid is applied with a paint roller or paintbrush. The fabric is embedded in the liquid. A topcoat is immediately applied. (Seams and joints receive a double application of fabric.) When dry to the touch, an additional coat is applied. 100% silicone sealant (e.g. LATICRETE Latasil™) is applied at adjoining surfaces, drains connections and pipe penetrations.
Related Documents:
LATICRETE 9235 Waterproofing Membrane DS 236.0
LATICRETE How To Install Membranes DS WPAF.5
LATICRETE Watertight DS 649.0 If I find an air bubble or blister in the membrane, what can I do?
Cut out the bubble or blister back to sound and well-adhered membrane. Apply a liberal amount of waterproofing liquid overlapping the existing membrane by 6” (150mm). Place the reinforcing membrane fabric into the liquid and immediately coat with additional waterproofing liquid. Allow to dry for 2 hours and topcoat with a final application of waterproofing liquid.
Can I use a mastic adhesive to install tiles over the waterproofing membranes?
No. Use only LATICRETE latex fortified thin set mortars or LATAPOXY® epoxy adhesive to install tile or natural stone over the waterproofing membranes.
Can I adhere a new application of the waterproofing membrane to an area already treated with the waterproofing membrane?
Yes. Ensure that the existing membrane is clean and dry. Apply a new application of the membrane over the existing areas.
How soon can I install LATICRETE 9235 Waterproofing Membrane or LATICRETE Watertight over:
New concrete – minimum 14 days at 70 degrees F/ 21 degrees C
Latex mortar beds – next day at 70 degrees F/ 21 degrees C
Leveling or patching materials – see instructions for cure times of those products.
Related Documents:
LATICRETE 9235 Waterproofing Membrane DS 236.0
LATICRETE Watertight DS 649.0
LATICRETE How To Install Membranes DS WPAF.5
How soon can I flood test LATICRETE 9235 Waterproofing Membrane?
Seven days after installation at 70 degrees F/21 degrees C.
Related Documents:
LATICRETE 9235 Waterproofing Membrane DS 236.0
LATICRETE How To Install Membranes DS WPAF.5
What adhesives are acceptable for installing tile over LATICRETE 9235 Waterproofing Membrane or LATICRETE Watertight?
Some options are:
LATAPOXY 300 Adhesive
LATAPOXY 210 Adhesive
LATICRETE 4237 Latex Additive mixed with LATICRETE 211 Powder
LATICRETE 254 Platinum
LATICRETE 3701 Mortar Admix mixed with LATICRETE 272 Mortar
Related Documents:
LATICRETE 9235 Waterproofing Membrane DS 236.0
LATICRETE Watertight DS 649.0
LATAPOXY 300 Adhesive DS 633.0
LATAPOXY 210 Adhesive DS 630.0
LATICRETE 211 Powder DS 239.0
LATICRETE 4237 Latex Additive DS 230.1
LATICRETE 254 Platinum DS 677.0
LATICRETE 272 Mortar DS 259.0
LATICRETE 3701 Mortar Admix DS 231.0
LATICRETE How To Install Membranes DS WPAF.5
Will LATICRETE 9235 Waterproofing Membrane or LATICRETE Watertight 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 Watertight are both designed to contain water from the positive side only. Not recommended where negative hydrostatic pressure or excessive vapor transmissions exists.
Related Documents:
LATICRETE 9235 Waterproofing Membrane DS 236.0
LATICRETE Watertight DS 649.0
LATICRETE How To Install Membranes DS WPAF.5
How soon can I fill a pool or fountain for use after installing LATICRETE 9235 Waterproofing Membrane?
Minimum 14 days at 70 Degrees F/ 21 Degrees C. Use a fill and drain rate of 1” (25mm) per hour.
What types of sealant are compatible with LATICRETE 9235 Waterproofing Membrane or LATICRETE Watertight?
Use a 100% silicone based sealant. Use LATICRETE Latasil.Related Documents:
Drawing WP300, DS 6200.1, DS 6526.1, DS 6524.1
LATICRETE How To Install Membranes DS WPAF.5
How do I treat the drains when using LATICRETE 9235 Waterproofing Membrane?
You must use a 2-part clamping ring style drain. The LATICRETE 9235 Waterproofing Membrane must be installed down into the drain assembly and clamped down.
Related Documents:
Drawing WP301
LATICRETE How To Install Membranes DS WPAF.5
When can I install tile over LATICRETE 9235 Waterproofing Membrane or LATICRETE Watertight?
When membrane is dry to the touch. Usually 4-6 hours at 70 degrees F/ 21 degrees C after last coat of liquid. For flood testing – allow a 7-day cure period at 70 degrees F (21 degrees C).
Related Documents:
LATICRETE 9235 Waterproofing Membrane DS 236.0
LATICRETE Watertight DS 649.0
LATICRETE How To Install Membranes DS WPAF.5