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

SPECIFICATION				KERACRETE
Enriched Synthetic Latex for Job-Site Prepared Mortar

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DESCRIPTION: A specially-formulated latex additive for use in job-site prepared setting mortar with sand and cement, (1:1), resulting in a highly water and frost resistant mortar.  KERACRETE can be used in interior and exterior applications over structurally sound concrete, masonry block, gypsum wallboard and cementitious backer units to set marble, granite, pavers, quarry tiles, and vitreous and non-vitreous ceramic tiles.

Specify KERACRETE as job-site prepared mortar for interior and exterior applications.

Specify KERACRETE with KERACRETE BINDER factory blended sand/cement (1:1 ratio) for compliance with A118.4.

Note: A job-site blend of sand and cement with KERACRETE is not eligible for compliance with ANSI A118.4.

Specify over properly prepared concrete, cement mortars and leveling coats, masonry block, existing brick, cementitious backer units, gypsum wallboard and cement plaster.

Specify for floor and wall installations of ceramic tiles, glass mosaics, quarry tiles, pavers, paving bricks, slate, marble, granite, precast terrazzo tiles and natural stone tile.

Specify for installation of tiles in tunnels, subway stations, shopping malls, schools, hospitals, and hotels.

Specify for installation of tiles in industrial, institutional and commercial buildings.

Specify for installation of tiles in swimming pools, fountains and water basins

DO NOT specify as a thick-bed mortar additive or as a leveling bed additive.  Specify PLANICRETE 50.  (See data sheet for details).

DO NOT specify as a latex additive to Portland cement grouts.

DO NOT specify as an additive with factory-prepared mortars.  Specify KERAPLY or KERALASTIC.  (See data sheets for details).

DO NOT specify as a latex additive to Portland cement grouts.  Specify PLASTIJOINTS acrylic latex grout additive (See data sheet for details).

DO NOT specify as a concrete repair or leveling compound.  Specify LEVEL/PATCH fast-setting cement patch, or ULTRA/PLAN, self-leveling underlayment (See data sheet for details).

DO NOT specify for the installation of Rosso Levanto and Negro Marquina marble or green marble or granite or their agglomerates.  Specify PLANICRETE W or KERAPOXY.  For all other marble types specify GRANI/RAPID or KERALASTIC system.  For setting light colored and translucent marble, specify white GRANI/RAPID or white KERAQUICK M (see data sheet for details).

When specifying KERACRETE in the 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 A108.5 - Installation Specification for Ceramic Tile Installed with Dry-Set Portland Cement Mortar or Latex-Portland Cement Mortar

ANSI A118.4 – Material Specifications for Latex- Portland Cement Mortar

ANSI A137.1 – Material Specification 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.  Additives, dry-set mortars, installation materials and grout shall be from he same manufacturer.

DELIVERY, STORAGE AND HANDLING

Deliver and sore 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) in tiled areas during installation and for 7 days after completion, unless higher temperatures are required by referenced installation standards or manufacturer’s written instructions.

PART 2 PRODUCTS

MORTAR MATERIALS

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When specifying KERACRETE, specify as a LATEX-PORTLAND CEMENT MORTAR or JOB-BLENDED SAND/CEMENT MORTAR system.  Delete non-applicable material.

Note: A job site blended sand/cement mortar is not eligible for compliance with ANSI A118.4.

[LATEX-PORTLAND CEMENT MORTAR: KERACRETE.  Setting system consisting of two components: KERACRETE synthetic latex additive and KERACRETE POWDER factory-blended sand and Portland cement mixture (sand 30-60 mesh silica and Portland cement:  
ASTM C–150 Type 1, 1:1 ratio), as manufactured by MAPEI CORPORATION, ANSI A118.4.]

[JOB-SITE BLENDED SAND/CEMENT MORTAR: KERACRETE, as manufactured by MAPEI CORPORATION.  Setting system consisting of two components: KERACRETE synthetic latex additive and job-site blended sand/cement mix (1:1 ratio).]

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When specifying KERACRETE in performance specifications, call MAPEI CORPORATION’s Technical Service Department’s toll-free number for assistance with product characteristics.

When specifying KERACRETE synthetic latex additive with job-site blended materials, consult with  MAPEI CORPORATION’s Technical Service Department.

When specifying GROUT MATERIALS refer to respective suggested grout specification – ULTRA/COLOR sanded polymer-modified cementitious grout or KER 200 sanded 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

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Select appropriate material and delete non-applicable material.
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Proportion and mix [factory-prepared mortar] [job-site prepared mortar] with enriched synthetic latex additive in accordance with manufacturer’s instructions.

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 tilework and conditions under which tile will be installed.  Do not proceed with tilework until surfaces and conditions comply with requirements indicated in referenced tile installation standards and manufacturer’s printed instructions.

INSTALLATION

Install tile in accordance with manufacturer’s printed instructions and ANSI A108.5

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Select TCA method to be used and delete non-applicable methods.  (Select from latest edition of the TCA Handbook.)
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[Floor Tile: Install in accordance with TCA method
[F101], [F102], [F103], [F111], [F112], [F113], [F114], 
[F115], [F121], [F122], [F141], [F144].]

[Wall Tile: Install in accordance with TCA method
[W201], [W202], [W211], [W221], [W222], [W231], [W241]
[W243], [W244], [B412], [B413], [B414], [B415].]

Countertop Tile: Install in accordance with TCA method [C511],
[C512], [C513].]

[Swimming Pool Tile: Install in accordance with TCA method P601.]

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

Install expansion and control joints in accordance with TCE method EJ171.

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

Tile surfaces shall be clean and dry.

PROTECTION

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Select appropriate statements for installation – floor, wall or both.  Delete non-applicable statements.
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[Protect floors from general traffic for at least 72 hours after installation.  Plywood or stepping boards may be used after 24 hours when occasional stepping on the floor is unavoidable.]

[Protect walls from impact, vibration and heavy hammering on adjacent and opposite walls for at least 14 days after installation.]	

Protect from freezing and total water immersion for at least 21 days after installation.

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When dealing with cement-based products, it should be noted that temperature and humidity during and after installation of tile affect final curing time, i.e., low temperatures (60 degrees and under) and high humidity (70% and above) will delay final cure time.
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For further information and technical assistance, contact:

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