LATICRETE INTERNATIONAL, INC.
1 LATICRETE Park North
Bethany, CT 06524-3423 USA
Telephone: +1.203.393.0010, ext. 235
Toll Free: 1.800.243.4788, ext. 235
Fax: +1.203.393.1948
E-mail: technicalservices@laticrete.com
Web site: http://www.laticrete.com


LATICRETE^® Blue 92 Anti-Fracture Membrane

PRODUCT DESCRIPTION

LATICRETE Blue 92 Anti-Fracture Membrane is a two–part system consisting of a liquid rubber and reinforcing fabric. When cured, it forms a highly flexible membrane. While the thin bed method of tile installation provides many advantages, this method can be affected by problems with shrinkage cracking in concrete and other types of substrates. Cracks can telegraph through the tile and/or grout joints. To reduce or eliminate cracks in tile work, a flexible membrane should be applied to the cracked substrate prior to the installations of ceramic tile, marble and stone.

Uses

• For interior or exterior use on floors and walls whenever hairline cracking or "spiderwebbing" occurs in the substrate
• For use over shrinkage and other non-structural cracks up to 1/8" (3 mm)
• Typical applications are over concrete slabs (suspended or on grade) in malls, lobbies and residential applications under ceramic tile, marble and stone
• Use to cover joints in plywood underlayments, cement backer boards, and concrete masonry on floors and walls
• Also use over concrete floors and underlayments with radiant heating systems

• Reduces crack transmission in ceramic tile, thin brick, marble and stone installed using thin-set method. Also ideal for use under cement based or resin Terrazzo
• Inhibits the growth of stain causing mold and mildew with Microban^® antimicrobial protection
• Thin—adds no appreciable thickness to floor construction; install tile with LATICRETE Polymer Fortified Thin-Set Mortar directly to cured membrane
• "Extra Heavy Service" rating per TCNA performance levels (RE: ASTM C627 Robinson Floor Test)
• Easy to Apply—goes on quickly with paint brush or roller; no mixing or special equipment required
• Fast Cure—dries in a few hours to receive finished surfacing
• Easy Cleanup—cleans with water while fresh
• Safe—no solvents or harsh fumes, non-flammable

• Exterior glue plywood*
• Concrete
• Mortar beds, renders
• Cement backer board**
• Cement terrazzo***
• Ceramic Tile and Stone***
• Concrete masonry

• 5 US gallon (19 l) pail liquid
• 1–roll reinforcing fabric: 38" (97 cm) wide, 95 ft (29 m) long
• 1–roll reinforcing fabric: 6" (15 cm) wide, 75 ft (23 m) long

• 2 gallon (7.66 l) jug of liquid, 15" (37.5 cm) wide roll

• LATICRETE^® Blue 92 Anti-Fracture Membrane is not intended for use as a waterproofing membrane. When a waterproofing membrane is required, use a LATICRETE Waterproofing Membrane (see Section 10 FILING SYSTEMS)
• DO NOT use over expansion joints, structural cracks or areas with differential vertical movement
• Adhesives/mastics, mortars and grouts for ceramic tile, pavers, brick and stone are not replacements for waterproofing membranes
• Apply to surfaces above 45°F (7°C). Maintain a constant temperature greater than 45°F (7°C) for 24 hours after installation
• Not intended as a wearing surface. Must be covered with tile, or other traffic bearing material
• DO NOT bond to particle board, luan, Masonite^® or hardwood surfaces

• During cold weather, protect finished work from traffic until fully cured
• For white and light-colored marbles use a white LATICRETE Mortar
• For green resin backed agglomerates and moisture sensitive marbles, use LATAPOXY^® 300 Adhesive. Refer to Data Sheet 633.0
• Protect freshly installed membrane from water exposure

1. Installer must verify that deflection under all live, dead and impact loads of interior plywood floors does not exceed industry standards of L/360 for ceramic tile and brick or L/480 for stone installations where L=span length
2. Minimum construction for interior plywood floors.
   SUBFLOOR: 5/8" (15 mm) thick exterior glue plywood, either plain with all sheet edges blocked or tongue and groove, over bridged joints 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 ring-shank, coated or hot dip galvanized nails (or screws); allow 1/8" (3 mm) between sheet ends and 1/4" (6 mm) between sheets edges; all sheet ends must be supported by a framing member; glue sheets to joints 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 ring-shank, coated or hot dip galvanized nails (or screws); allow 1/8" (3 mm) to 1/4" (6 mm) between sheets and 1/4" ( 6 mm) between sheet edges and any abutting surfaces; offset underlayment joints from joints in subfloor and stagger joints between sheet ends; glue underlayment to subfloor with construction adhesive. Refer to Technical Data Sheet 152 Bonding Ceramic Tile, Stone or Brick Over Wood Floors