CustomTech Flooring Prep
CustomTech – the industry’s leading collection of technologically-superior, easy-to-use, professional grade subfloor preparation products designed for all types of floor coverings.
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.
Tools & Accessories
Precision demands the best.
SuperiorBilt® Tools are professionally preferred for tile, stone and floor covering installations.
Products : CustomTech Flooring Prep : Moisture Control : CustomTech™ TechMVC Moisture Vapor and Alkalinity Barrier
CustomTech™ TechMVC™ 100% Solids Epoxy Moisture Vapor Control
TechMVC is a true single coat, high density, moisture- and alkali-resistant, two-component, rapid cure 100% solids epoxy coating specifically formulated to control concrete moisture vapor emission and alkalinity beneath finished flooring. TechMVC may be used on concrete substrates measuring up to 100% RH (per ASTM F-2170), 25 lbs MVT (per ASTM F-1869) and pH 14, and is part of a full system to bring floors to ASTM F-710 and ASTM F 3010-13 at 8.5 mils nominal for moisture vapor compliance. Single-coat application effectively controls concrete moisture emission and creates an alkaline barrier between the substrate and adhered flooring materials. TechMVC is compatible with appropriate CustomTech™ 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.
TechMVC is compatible with most epoxy coatings (including epoxy terrazzo) and reactive urethane and epoxy adhesives for direct bond applications.
For professional use only.
Installation must comply with the requirements of all applicable local, state and federal code jurisdictions.
TechMVC 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.
USE CHEMICAL-RESISTANT GLOVES, such as nitrile, when handling product.
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 bonding to the substrate. Newly prepared concrete must be cured for 7 days and then shot blasted to a ICRI CSP #3. Existing surfaces must be shot blasted 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 (without surface condensation), solid and stable. Ensure all old adhesives, contaminants, curing compounds, bond breakers, oils, silicates, dust and sealers are completely removed. Contaminated surfaces require additional preparation and/or testing prior to TechMVC application. Inadequate mechanical surface preparation and subsequent cleaning could leave contaminants on the substrate surface, which may lead to pin-holing, fish-eying or bubbling in the TechMVC. Porous substrates can exhibit out-gassing. If out-gassing occurs; install when surface temperatures are falling. Do not acid-etch surfaces before applying. Any cementitious repair mortar or patch placed prior to the installation of Tech MVC must be fully cured and well bonded.
Do not bridge joints that are designed to experience dynamic or differential movement. Follow the architect's and flooring manufacturer's instructions to fill the joint with a specified sealant or manufactured profile component.
NOTE: Future movement including slab curl or slab relaxation and subsequent cracks resulting in moisture intrusion or damage to floor finish do not constitute a product failure and is not guaranteed.
Movement-free dimensionally stable joints and cracks up to 1/8” (2.8 mm) wide should be treated with CustomTech™ MVC. For joints and cracks wider than 1/8", consider adding sand to Tech MVC to create an epoxy mortar, if appropriate.
Wear rubber gloves and eye protection while using this product. Avoid eye contact or 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.
Bonding Over Cured TechMVC
Allow TechMVC to cure until tack free, typically 4 hours at 73°F (23°C). Select a primer that will meet performance expectations of finished floor covering(s). Assure that membrane surface is clean of dirt and dust from construction traffic and after curing, apply an appropriate CustomTech™ primer with a suitable paint roller before installation of a self-leveling underlayment. Consult primer datasheet or Technical Service for additional information.
For direct bond applications, select a compatible adhesive that will meet performance expectations of finished floor covering(s). Most reactive adhesives may be direct-bonded to TechMVC, and many pressure sensitive adhesives may be direct bonded to TechMVC. Floating or non-adhered floor systems can be installed directly over the cured TechMVC per the manufacturer’s recommendations. A second coat of TechMVC may be applied over the first application of TechMVC within 48 hours. For bonding ceramic or natural stone tile, use CUSTOM MBP™ Primer over Tech MVC.
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. Keep the mixing paddle submerged in the material and avoid air entrapment. Pour Part B into the Part A container and mix thoroughly for two minutes to a smooth, homogenous consistency, scrape the side of container for unmixed materials, mix for additional 15 seconds.
Install TechMVC 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 of the space and maintain the substrate temperature at a minimum of + 5F above the dew point.
Immediately after mixing, pour the entire contents on floor and begin spreading . DO NOT leave mixed material in the pail for more than 3 minutes.
Apply TechMVC with a 1/8” V-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. In rare instance when severe out-gassing creates bubbles in the TechMVC ”shave off” the tops of any bubbles that protrude, and then apply a second tight coat of TechMVC over the surface void(s) in question to insure a continuous surface film.
NOTE: in many instances bubbles are reduced or eliminated if product is applied when temperatures are falling.
TechMVC is a reactive 2-component resin and typically cures to tack free in 4 hours at 73°F. Cooler temperatures may slow cure time. Protect from foot traffic and dust/contaminates until underlayment or protective layer is applied. Cured films of TechMVC 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. For details and complete warranty information, visit custombuildingproducts.com
*Coverage values are for product manufactured after 3/1/16. Contact CUSTOM Technical Services for more information.
Chart is for estimating purposes. Coverage may vary based on installation practices and jobsite conditions.
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