MVIS™ WCI (Water Crack Isolation) is single component, load bearing, fluid applied, bulk water management, crack isolation membrane. It produces a seamless, monolithic elastomeric coating and bonds directly to a wide variety of substrates. MVIS WCI is a low VOC, self-curing, water – based formula used in construction to improve building efficiencies, durability, protect finishes and enhance building longevity.  

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Made in the USA
25 Year Guarantee USA

Features & Benefits

  • Provides superior crack isolation preventing in-plane movement from transmitting through finished materials
  • Has an excellent bond strength that will not peel, chip, or bubble from substrates
  • For use as a bulk water management to prevent water migration through the full system
  • Is incorporated with Microban® antimicrobial for product protection from the growth of microbes including bacteria, mold and mildew
  • Formula dries a lighter color for ease of inspection with color changing technology that can easily show voids
  • Is non-flamable and has no harmful VOCs

Product Information

MVIS™ WCI is designed to help the performance of interior and exterior thin veneer systems. It is used behind the adhesive mortar and is a load bearing, fluid applied membrane. It can be used as a bulk water management system and crack isolation membrane in an MVIS™ system (Masonry Veneer Installation System) when placed under exterior masonry veneer finishes (ceramic tile, stone, manufactured stone veneer and directly over cement backer board). The membrane will keep most of the bulk water through system and minor movements (from thermal, wind loads) of the façade system.  Any moisture that may pass through the system will be handled by the primary water resistive barrier or air barrier system.  

Equipped with Microban antimicrobial product protection to fight the growth of stain-causing mold and mildew on the membrane.

It can also be used as a component with the air barrier assembly, when used with other wall components within the building envelope. For other options, consult with LATICRETE Technical Services

  • Product #: 9268-0005-2
  • Packaging Sizes: 5 Gallon Pail (18.9L) (36 commercial units/pallet) 
  • Part of System: MVIS™
United States

Product Data Sheets


  • DS 0247 25 Year MVIS System Warranty (US - English)
  • DS 21040 15 Year MVIS System Warranty for Steel or Wood Framed Exterior Facades (US - English)
  • DS 0247CN 25 Year MVIS System Warranty (Canada - Engish)
  • DS 2104CN 15 Year MVIS System Warranty MVIS for Steel or Wood Framed Exterior Facades (Canada - English)
  • DS 0247SP 25 años de garantía limitada del sistema - MVIS (Estados Unidos - Español)
  • DS 2104SP 15 años de garantía del sistema Para fachadas exteriores con estructura de acero o madera - MVIS (Estados Unidos - Español)
  • DS0247F Garantie limitée de 25 ans sur les systèmes MVIS (Canada - Francais)
  • DS2104F Garantie de 15 ans sur les systèmes MVIS Pour façades extérieures à ossature en acier ou en bois (Canada - Francais)

Installation Information

Safety Data Sheets

Approvals, Certifications and Environmental

How to Use

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