PRODUCTS MVB

DRYTEK™ MVB is a premium water-based epoxy that is easy to apply, fast drying, and an effective moisture vapor barrier. DRYTEK™ MVB penetrates into the substrate to reduce moisture vapor transmission and improve surface alkalinity.

Effective over the following substrates: freshly-poured/green concrete properly prepared concrete cement backer board radiant heat flooring cement based terrazzo Effective under the following floor coverings: vinyl/VCT rubber epoxy flooring systems engineered or solid hardwood porcelain, marble, granite or ceramic tile floor covering DRYTEK self-leveling cement underlayments and wear surfa

PERFORMANCE CHARACTERISTICS

Easy to mix two-part kit system is blue in color to visually indicate when full coverage has been achieved Each one gallon kit will cover 150 sq ft in one coat at a dry film thickness of ~6.4 mils* MICROBE BLOCKER antimicrobial protection inhibits mold and mildew growth and associated staining Apply over fresh “green” concrete (once substrate can be walked on without disturbing the surface) Protects floor goods against moisture damage through for a period equal to the flooring manufacturer’s product warranty Non-blushing formula requires no solvent clean-up No adhesive “time limit” to achieve a strong bond Non-flammable Low odor Effective in reducing the surface alkalinity of concrete with pH levels as high as 14 down to pH levels of 9 or below (as recommended by the Carpet and Rug Institute and the Canadian Carpet Institute) * Coverage rates are approximate. Actual coverage will vary based upon substrate p

BEFORE USING DRYTEK™ MVB

• Refer to and follow industry standards (such as CRI, MMFA, NTCA, NOFMA, NWFA, TCA, etc.) and the manufacturer recommendations for floor goods being installed prior to using.
  
• Follow the floor goods manufacturer’s recommendations for surface preparation and floor goods installation.
  
• Read and understand the DRYTEK™ MVB data sheet and Material Safety Data Sheet.
  
• Follow industry standards and floor goods manufacturer’s recommendations for design, layout and application of flooring materials; including test methods, jobsite temperature and relative humidity.
  
• Perform a mock-up to ensure product will perform as required
  
• Check www.drytek.com for any technical bulletins or updated information about the product and its application
  
• Contact your local DRYTEK TECHNICAL SALES REPRESENTATIVE with any questions.

DRYTEK™ MVB INSTALLATION INSTRUCTIONS

1. TEST SUBSTRATE SURFACE AND DETERMINE COVERAGE RATES
   1. ASTM F 1869: Perform a Dynamic Condition Test to determine Moisture Vapor Emission Rate (MVER). MVER tests must be conducted in accordance with the latest edition of ASTM F 1869,
      “Standard Test Method for Measuring Vapor Emission Rate of
      Concrete Subfloor Using Anhydrous Calcium Chloride.”
      
   2. ASTM F-2170: Perform a Static Condition Test to determine Percent Relative Humidity (RH). RH Tests must be conducted in accordance with the latest edition of ASTM F-2170, “Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes.”
      
   3. ASTM F-710: Perform an Alkalinity Condition Test to determine the alkalinity (pH) at the surface of a concrete slab must. Alkalinity Tests must be conducted in accordance with the latest edition of ASTM F 710 “Standard Practice for Preparing Concrete Floors to Receive Resilient Flooring”.
      
   4. DETERMINE COVERAGE RATE: The results of the above tests will indicate whether one coat or two coats of DRYTEK™ MVB are required.
      • ONE COAT is required if RH is less than or equal to 92% AND
        MVER is less than or equal to 14 lbs.
      • TWO COATS are required if RH is greater than 92% OR MVER
        is greater than 14 lbs.

      NOTE: Each one gallon kit of DRYTEK™ MVB will cover ~150 sq ft at a dry film thickness of ~6.4 mils. When applying TWO COATS be sure that the first coat is fully cured and dried before installing the second coat. TWO COATS will yield a total dry film thickness of ~12.8 mils.
      
      NOTE: TWO COATS are always required when applying over freshly
      poured or “green” concrete.

2. PREPARE FOR INSTALLATION
   1. PREPARE SURFACE: Clean substrate to eliminate dust, dirt, oil, grease, paint or any contaminants which may inhibit bonding. Mechanically clean weak or contaminated surfaces by shot blasting or scarifying. Do not use chemicals to clean the substrate. Surfaces must have a concrete surface profile of CSP 2-3 as defined by ICRI (International Concrete Repair Institute, Guideline No. 03732).
   2. CHECK CONDITIONS: Ensure substrate maintains minimum temperature of 40°F (4°C) during the application and the ambient temperature is maintained between 40-90°F (4-32°C) during and 24 hours after application. DRYTEK™ MVB kits should be at a minimum temperature of 60°F (15°C) at time of mixing.
   3. GRID JOBSITE: To achieve optimal coverage and proper applied material thickness, the jobsite should be laid out in 150 sq ft area “grids”. A one gallon kit of DRYTEK™ MVB should be staged in each grid area to ensure smooth workflow.
   4. REQUIRED TOOLS: Slow speed industrial drill (< 150 RPM) fitted with
      a 3” diameter (or larger) mixing blade. Short 3/8” nap rollers. Nylon
      bristle deck brush.


3. MIX MATERIAL

1. PREMIX PART B (HARDENER): Open the larger container of the two-part kit and
   pre-mix using a slow speed drill (< 150 RPM), fitted with a blade that is at least 3” in diameter until. Scrape the sides and bottom of the container when mixing to ensure a complete mix.
   
2. PREMIX PART A (RESIN): Open the smaller container of the two-part kit and premix using the wooden stick provided. Scrape the sides and bottom of the container when mixing to ensure a complete mix.
   
3. MIX PART A & PART B: After each container has been thoroughly mixed, add
   PART A into the large container of PART B while continuously mixing with the drill.
   Use the wooden stick provided to scrape all of PART A into the PART B container.
   Mix for approximately one minute until a uniform light blue color with no streaks is
   obtained. Do not over mix, as the pot life will be reduced.

   NOTE: Do not mix partial batches, mix full kits only. Do not dilute components or add any additional materials to the A/B mix.

1. APPLY MATERIAL
   1. POUR: Pour mixture onto floor. Ensure optimal coverage by using contents of one
      mixed kit per 150 sq ft area grid.
      
   2. SPREAD: Use short 3/8” nap roller to uniformly coat the floor surface area. A
      uniform blue color will indicate a uniform coat.
      
   3. BRUSH (if required): Use a nylon bristle deck brush to work the material into surface imperfections or pin holes.
      
   4. CURE: Allow a 6 hour minimum cure time. The material will be cured when it is tack free to the touch. Cure time may vary due to job site temperature and humidity.
      
   5. APPLY COAT TWO (if required): Once material is tack free a second coat of
      DRYTEK MVB may be applied if required.
      
   6. INSTALL FLOOR GOODS: Once material is tack free; primers, patches,
      underlayments, and/or floor good adhesives may be applied per manufacturer’s
      instructions.
      

   NOTE: DRYTEK™ MVB should be installed BEFORE installing any patching or leveling products. After installing DRYTEK™ MVB surfaces may be patched by directly applying DRYTEK™ SKIMCOAT or leveled by applying DRYTEK™ PRIMER and a DRYTEK™ SELF-LEVELING CEMENT per product instructions.

2. CLEAN UP
   
   1. Immediately clean all tools and equipment with soap and water.
      

   NOTE: Once DRYTEK™ MVB hardens it can be removed by scraping, however care should be taken not to damage surfaces.
   

   USING DRYTEK™ MVB TO TREAT CRACKS & JOINTS
   NON-DYNAMIC CRACKS/JOINTS: For cracks and joints with no movement (Non- Dynamic) - remove existing sealant and debris. Coat all surfaces of the cavity walls with DRYTEK™ MVB using a paint brush. Once cured, patch the area with DRYTEK™ SKIMCOAT or DRYTEK™ 8400.

   DYNAMIC CRACKS/JOINTS: For cracks and joints with movement (Dynamic) - remove existing sealant and debris. . Coat all surfaces of the cavity walls with DRYTEK™ MVB using a paint brush. Once cured, fill the joint

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[ DOWNLOAD DRYTEK WARRANTY (PDF) ]
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Information contained within this brochure is not legally binding. Information contained herein is presented in good faith but the manufacturer will not be held liable for information which has been misunderstood or used incorrectly. The manufacturer will not be held liable for improperly applied or used products, nor the specific use or pertinency of a product to a particular project. Information contained herein or otherwise administered by the manufacturer or its affiliates is based on the current and present knowledge of the products when used under normal circumstances according to manufacturer recommendations.

WARNING: Dust may cause skin, eye nose, throat, or reparatory irritation. Avoid dust inhalation and exposure to dust. If dusty, wear a NIOSH/MSHA-approved dust respirator. Use proper ventilation to reduce dust exposure. Portland cement is strongly alkaline and can be corrosive to eyes, skin and respiratory tract. Wear eye and skin protection. If eye contact occurs, immediately flush thoroughly with water for 15 minutes and get medical attention. Do not ingest. If ingested and any discomfort occurs, call physician.