Quality begins from the ground up.
Preparing your surface is the most critical task of any tile or stone installation. Custom Building Products offers you one source for the needs of virtually any job.
The foundation of precise tile and stone setting.
Whatever the application, CUSTOM® offers the broadest line of tile and stone setting materials in the industry to give the exact performance your job demands.
Tile grout with dependable performance and color.
Look for tile grout with rock-solid durability, consistency and the largest color palette with Custom. Our grouts are easy to work with yet deliver hard, dense joints.
Care & Maintenance
Stains can RUIN Stone & Tile.Protect Yours Now!
Stains on stone, tile or grout happen easily - and can leave permanent stains. Protect your surface against both oil-based and water-based stains with the right sealer.
Professional Solutions for Professional Results
Offering the largest selection of Sealers, Cleaners, Problem Solvers, Grout Colorant and Stone Restoration products, we provide professionals with the right tools and solutions; making us the #1 Contractor Preferred Manufacturer of Sealers and Cleaners.
CustomTech Flooring Prep
Designed for your floors.
CustomTech – the industry’s leading collection of technologically-superior, easy-to-use, professional grade subfloor preparation products designed for all types of floor coverings.
Flooring Installation Systems
Start with a strong foundation.
Increase the durability of your floor covering installation by ensuring that your subfloor is properly prepared. CUSTOM® Flooring Installation Systems provide a strong foundation for virtually any project, and deliver optimum performance when used under all types of floor coverings: carpet, wood, vinyl and more.
Profiles & Transitions
Discover a better choice in high-quality profiles and transitions. Create stunning designs in tile and stone without unsightly edges.
A complete line of high performing, aesthetically pleasing edge-protection profiles. Available in the most popular designs and styles, they integrate with most field tile to increase design flexibility and minimize safety risks.
Tools & Accessories
Precision demands the best.
SuperiorBilt® Tools are professionally preferred for tile, stone and floor covering installations.
Products : Flooring Installation Systems : Moisture Control : CMVC
This product has been discontinued. Please reference our CustomTech line of products.
CMVC is a true single coat, high density, moisture- and alkali-resistant, two-component, 100% solids epoxy coating specifically formulated to control concrete moisture vapor emission and alkalinity beneath finished flooring. CMVC may be used on concrete substrates measuring up to 100% RH (per ASTM F-2170), 25lbs MVT (per ASTM F-1869) and pH 14, and is part of a full system to bring floors to ASTM F-710 for moisture vapor compliance. Single-coat application effectively controls concrete moisture emission and creates an alkaline barrier between the substrate and adhered flooring materials. CMVC is compatible with appropriate Custom® primers, most non-porous surface primers, reactive and pressure sensitive adhesives and setting materials typically used to install adhered flooring such as: ceramic tile, vinyl composition tile (VCT), carpet, sheet vinyl, rubber and wood. Note: Some adhesives may require the use of a primer, consult Custom Technical Services. CMVC is compatible with most epoxy coatings (including epoxy terrazzo) and reactive urethane and epoxy adhesives for direct bond applications.
For professional use only.
ASTM F2170 Standard Test Method for Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes
ASTM F1869 Standard Test Method for Measuring Moisture Vapor Emission Rate of Concrete Subfloor Using Anhydrous Calcium Chloride
ASTM E96 Standard Test Method for Water Vapor Transmission of Materials
ASTM F710 Standard Practice for Preparing Concrete Floors to Receive Resilient Flooring
ASTM D1308 Standard Test Method for Effect of Household Chemicals on Clear and Pigmented Organic Finishes
Installation must comply with the requirements of all applicable local, state and federal code jurisdictions.
CMVC is a 2-component high quality epoxy moisture vapor reducing and alkaline resistant coating
Custom® Building Products is committed to environmental responsibility in both products produced and in manufacturing practices. Use of this product may contribute to LEED® certification.
For interior use only and not for use in areas subject to freeze thaw. All surfaces must be structurally sound, clean, dry and free from contaminants that would prevent a good bond. Newly prepared concrete must be cured for 7 days and then shot blast to a ICRI CSP #3. Existing surfaces must be shot blast to a ICRI CSP#3. Edges may be ground to achieve an ICRI CSP #3. Vacuum surface and take care to remove all dust that has been ground into the porosity of the substrate. All substrates must be structurally sound, surface-dry, solid and stable. Ensure all old adhesives, contaminants, cures or other bond breakers are completely removed. Oil, un-reacted silicates or other penetrating treatments may act as contaminants that can lead to system failure. Contaminated surfaces may require additional preparation and/or testing prior to CMVC application. Inadequate mechanical surface preparation and subsequent cleaning could leave curing compounds and contaminants on the substrate surface, which may lead to pin-holing, fish-eying or bubbling in the CMVC. Porous substrates can exhibit out-gassing. If out-gassing occurs; Install when surface temperatures are falling. Do not acid-etch surfaces before applying. Use anhydrous calcium chloride tests to determine MVERs according to ASTM F1869. Perform tests of the slab's relative humidity according to ASTM F2170's "in situ" probe method.
Bonding to Lightweight Concrete
Lightweight materials must obtain a minimum of 2000 psi (13.8 MPa) compressive strength and tensile strength greater than 200 psi at the recommended cure time. The underlayment must be properly cured. Surfaces to be covered must be clean, structurally sound and subject to deflection not to exceed the current industry standards. Expansion joints must be installed in accordance with local building codes.
Do not bridge joints designed to experience movement including both horizontal and vertical movement including slab curl and relaxing. Carry these types of joints through the finished flooring unless otherwise instructed in writing by an engineer. Clean the joint and install an open or closed cell-backer rod to the proper depth. After the flooring is finished follow the architect's and manufacturer's instructions to fill the joint with a specified color sealant.
Non-moving dimensionally stable Joints
Movement-free dimensionally stable cracks exceeding 1/32" (0.7 mm) should be treated with a high modulus epoxy. An appropriate Custom® epoxy primer may be used for crack treatment. Always consult an engineer for final recommendation and product selection. Moving joints must be honored through the entire system and left exposed with appropriate sealant.
Wear rubber gloves and eye protection while using this product. Avoid eye contact and contact with skin and wash thoroughly after handling. If eye contact occurs, flush with water for 15 minutes and consult a physician. Wash thoroughly after handling. Do not take internally. Keep out of the reach of children.
Premix Part A to a homogenous consistency (2 to 3 minutes) using a low-speed mixer (at 300 to 450 rpm) and a paint mixing paddle. Pour Part B into the Part A container and mix thoroughly to a smooth, homogenous consistency. Do not mix at high speeds, which can entrap air within the mixed material. Pour the entire unit of any mixed CMVC onto the substrate within 3 minutes of mixing and begin spreading immediately. DO NOT leave mixed material in the pail for more than 3 minutes.
USE CHEMICAL-RESISTANT GLOVES, such as nitrile, when handling product.
Install CMVC at temperatures within +/- 10°F of the operating temperature of the facilities in service (but no lower than 50°F [10°C]), observe dew point requirements. Immediately after mixing pour the entire contents of the mixed unit on the floor and spread. DO NOT leave mixed product in the pail for more than 3 minutes. Apply CMVC with a notch squeegee and back-roll with a lint free roller to obtain minimum DFT as listed in coverage below. Ensure that all voids and pinholes are filled/sealed before moving on to the next flooring phase. “Shave off” the tops of any bubbles that protrude, and then apply a second tight coat of CMVC over the surface void(s) in question to insure a continuous surface film. NOTE: in many instances bubbles are reduced or not present if product is applied when temperatures are falling.
CMVC is a reactive 2-component resin and typically cures to tack free in 5 - 6 hours at 73°F. Protect from foot traffic and dust/contaminates until underlayment or protective layer is applied. Cured films of CMVC that are damaged must be repaired prior to floor covering application to ensure desired performance.
Clean tools and equipment with appropriate solvent prior to hardening. Cured product may only be mechanically removed.
Properly installed product requires no special maintenance.
2.65 gallon kit
Custom® Building Products warrants to the original consumer purchaser that its product shall be free from defects in material and workmanship under normal and proper usage for a period of one year following the date of original purchase. Custom's® sole liability under this warranty shall be limited to the replacement of the product. Some states, countries or territories do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty will not extend to any product which has been modified in any way or which has not been used in accordance with Custom's® printed instructions. Custom® makes no other warranties either expressed or implied. This warranty gives you specific legal rights, and you may have other rights that vary from state to state or from one country/territory to another. This warranty is not transferrable.
CUSTOM BUILDING PRODUCTS
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