INSTALLATION:
Ceramic, Mosaic, Quarry, Paver, Marble and Granite

SPECIFICATION				PRP M19
Quick Drying Synthetic Rubber Waterproofing & Crack Isolation Membrane System

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DESCRIPTION: A flexible thin load bearing cold applied waterproofing and crack isolation membrane system consisting of a quick drying synthetic rubber liquid latex and a fiber reinforcing fabric.  PRP M191 meets or exceeds ANSI A118.10 requirements for thin load bearing boarded waterproofing membranes.  PRP M19 is also compatible with ANSI A118.4 requirements for thin load bearing bonded waterproofing membranes.  PRP M19 is also compatible with ANSI A118.4 latex Portland cement mortars for thin-set installation of ceramic tile, quarry tile and dimension stone.  Easy to apply with a paintbrush or roller.  Cleans with water when fresh.

Specify for interior and exterior uses.

Specify for waterproofing on floors and walls directly under ceramic tiles, quarry, tiles, and dimension stones installed with GRANI/RAPID, KERALASTIC/KERABOND, KERAPLY, ULTRA/FLOR Mortar, KERACRETE and other similar ANSI A118.4 type mortars (see respective product data sheets for complete details and limitations).

Specify for use on interior wall directly over “Green-board” installed as per TCA HANDBOOK recommendations under adhesive-set ceramic tiles installed with KER 903 TYPE 1 or ULTRA/MASTIC 1 adhesives.

Specify for application wherever hairline, spider web and non-structural cracks up to 1/16” (1,5mm) wide occur in the substrate to reduce crack transmission in the finished ceramic tile, natural stone or other surfacing material installation.

Specify for application at the intersection between two dissimilar substrates (i.e. plywood to concrete).

Specify for application over non-structural cracks up to 1/8” (3mm) wide when applied in two layers.

Specify for bridging over underlayment plywood joints when plywood spacing does not exceed 1/8” (3mm) wide.  Apply in 2 layers	

DO NOT specify for an exposed roofing, single ply roofing, or where subject to continuous direct exposure to sun, weather, or traffic.

DO NOT specify in negative hydrostatic conditions or to rubber solvent and ketone exposure.

DO NOT specify as a wear surface.  PRP M19 must be covered with tile, stone or other traffic-bearing surfacing material.

DO NOT specify for over a substrate whose deflection exceeds L/360 under live or dead loads
DO NOT specify over fiberglass, presswood, particle board, masonite, chipboard, Lauan, gypsum or asphalt-based floor leveling compounds, metal, single layer wood floors, or dimensionally
unstable substrates.

DO NOT specify over plywood in exterior applications.

DO NOT specify over expansion joints, control joints or structural movement cracks.

DO NOT specify over cracks wider than 1/8” (3mm).

DO NOT specify on cracks subject to out –of-plane movement.

When specifying PRP M19 in the Waterproofing or Tile Section selected – ceramic, mosaic, quarry, paver, slate, marble or granite – add appropriate articles or paragraphs under the applicable PART as indicated.
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PART 1 GENERAL

REFERENCES

ANSI A118.10 1993 – Material Specification for Load Bearing, Bonded, Waterproof Membranes for Thin-Set Ceramic tile and Dimension Stone Installations

ANSI A137.1 – Material Specifications for Ceramic Tile

Tile Council of America, Inc. (TCA) – Handbook for Ceramic Tile Installation.

SUBMITTALS

Product Data: Submit manufacturer’s technical information and installation instructions for materials required.

QUALITY ASSURANCE

Provide tile, grout and setting materials from one source.  Waterproofing, additives, dry-set mortars, installation materials and grouts shall be from the same manufacturer.

DELIVERY, STORAGE AND HANDLING

Deliver and store packaged materials in original containers with seals unbroken and labels intact until time of use.  Prevent damage or contamination to materials by water, freezing, foreign matter or other causes.

If frozen, do not stir until material has completely thawed

Deliver and store materials on site at least 24 hours before work begins.

Provide heated and dry storage facilities on site.

PROJECT CONDITIONS

Maintain environmental conditions and protect work during and after installation to comply with referenced standards and manufacturer’s printed recommendations.

Vent temporary heaters to exterior to prevent damage to tilework from carbon dioxide build-up.

Maintain temperature at not less than 50 degrees F (10 degrees C) or more than 100 degrees F (38 degrees C) in tiled areas during installation and for 7 days after completion.

PART 2 PRODUCTS

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Select PRP M19 and appropriate accessory.  Delete non-applicable material.
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MEMBRANE MATERIALS

MEMBRANE:  PRP M19 thin load bearing roller or paint brush applied waterproof membrane consisting of a single component synthetic rubber liquid latex complying with ANSI A118.10, as manufactured by MAPEI CORPORATION

ACCESSSORY

FIBER MESH NET: Fiber mesh net 5/32 (4mm) square alkaline resistant, as supplied by MAPEI CORPORATION

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When specifying PRP M19 in performance specification, Call MAPEI CORPORATION’s Technical Service Department toll-free number for assistance with product characteristics.

When specifying Mortar Materials for bonding to PRP M19 waterproof membrane, specify MORTAR MATERIALS: GRANI/RAPID, KERALASTIC, ULTRA/FLOR-KERAPLY, KERACRETE setting system or other similar ANSI A118.4 type mortars.

When specifying GROUT MATERIALS, refer to respective suggested grout specification – ULTRA/COLOR sanded polymer-modified cementitious grout or KER 200 polymer-modified Portland cement tile grout or KER 800 unsanded polymer-modified Portland cement tile grout (ANSI A118.6), or KERAPOXY 100% Solids Epoxy Grout (ANSI A118.3). ).  Grout tiles according to grout instructions and ANSI A108.10 or A108.6 specifications.

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MIXES

No mixing is required. PRP M19 is ready to use.

PART 3 EXECUTION

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Specifications for surface conditions are listed in the beginning of the specification of MAPEI’s Architectural Binder.  These specifications should be called out with the related work sections.  Delete non-applicable conditions.  (Refer to ANSI EXPLANATION AND NOTES section: AN-3 RELATED WORK SPECIFIED IN OTHER SECTIONS.)
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EXAMINATION

Examine surfaces to receive membrane and conditions under which membrane will be installed.  Do not proceed with tilework until surfaces and conditions comply with manufacturer’s printed instructions.

PREPARATION

Prepare substrate in accordance with manufacturer’s printed instructions.

INSTALLATION

Install waterproof membrane in accordance with manufacturer’s printed instructions

Install FIBER MESH NET in accordance with manufacturer’s printed instructions.

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Select Field Quality Control article for inclusion in specification when water testing of membrane is required.
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[FIELD QUALITY CONTROL]

Allow PRP M19 MEMBRANE to cure completely before flood testing, usually 5 to 7 days at 70°F (21°C).  Cold weather conditions will require longer curing time.

Flood to minimum depth of 2 inches with clean water.

To check for leaks, dispense liquid food color dye around perimeter of installation and watch for flow of dye.

If leaking is found, mark areas dye enters membrane, drain installation, dry completely and patch using new waterproofing material.  Allow to dry for 24 hours before setting tile.]

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Select TCA method to be used and delete non-applicable methods.  (Select from latest edition of TCA Handbook).
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[Floor Tile: Install in accordance with TCA method [F111], [F112], 
[F113], [F121], [F122], [F141], [B417, [TR712], [RF912]

[Wall Tile: Install in accordance with TCA method [W221], [W222],
[W231], [W241], [TR713]

[Tub and Fountain Tile: Install in accordance with TCA method B417]

[Refrigerator Room Tile: Install in accordance with TCA method R612]

[Stair Tile: Install in accordance with TCA method S151]

Install expansion and contro joints in accordance with TCA method E117

Grout joints shall be clean and free from standing water, dust and foreign substances.

Tile surfaces shall be clean and dry.

PROTECTION

Protect exposed membrane from water contact and unrestricted foot traffic for 12 hours minimum and preferably until tile or stone surfacing is complete.

For further information and technical assistance, contact:

				     MAPEI CORPORATION
				     1501 WALL STREET
				     GARLAND, TEXAS 75041-4046
				     1-800-992-6273