For specific questions, contact our terrazzo sales desk at 800. Mapelastic ci is a premixed, liquidrubber, quickdrying crack isolation membrane for installation under ceramic tile or stone in residential and commercial interior and exterior environments. Waterproofing membranes systems west pacific coatings. Also can be specified with glass, synthetic, or granite aggregates in lieu of marble to provide brilliant colors or chemical resistance. Doyle dickerson terrazzo has been installing terrazzo flooring in schools, hospitals and government centers over the last 20 years, areas in which high traffic is common. Crack isolation membrane the tile council of north america. Epoxy terrazzo floor coatings instllation techniques the.
Use over epoxy flooring to install carpet with ultrabond eco 185, ultrabond eco 285 or ultrabond. Jun 17, 2019 epoxy terrazzo also has excellent physical properties, average compressive strength of 14,000psi, tensile strength of 4,800 psi and flexural strength of 4500 psi, which gives it the best durability and crack resistance of any system. Today, about 90 percent of terrazzo being installed is epoxybased, said boncosky. As an online resource for your terroxy technical needs, select from our menu of resources below. Key epoxy terrazzo provides virtually unlimited freedom in color and layout design to provide you total control over your special floor. Installing epoxy terrazzo using terrazzco brand products duration. When applied at 40 mils and used beneath epoxy flooring systems, it provides a mechanism toseparate epoxy flooring from crackingmovement of substrates.
Resinous flooring, epoxy flooring, fluidapplied polymer flooring by key resin company. Terrazzo floors can incorporate any personalized designs from local image to famous heroes, logos, borders and just about anything using different color set and geometric shapes epoxy terrazzo is the thinnest of three systems at 38 inch. Obtain aggregates, solvents, divider strips, sealers and cleaners from source recommended by primary materials manufacturer. Membrane is installed at 2530 mils dft with an additional reinforced detail coat at cracks. The design flexibility, speed of install, the introduction of crack suppression membranes and overall weight of epoxy terrazzo make it a popular choice. Terroxy iso crack epoxy membrane, for substrate crack preparation and reflective crack reduction. How to repair cracks in terrazzo national terrazzo and.
We were retained to investigate the cause of the failures and to provide remediation specifications for repairing or replacing the terrazzo flooring. It is not safe to use where excessive substrate moisture andor negative hydrostatic pressure exists. Epoxies emerged in the 1970s, offering healthier material content, greater durability and more color options. Epoxy formulators introduced flexible epoxy membranes that are. A readytouse elastomeric waterproofing membrane for both commercial and residential tile and stone application. This mosaiclike floor topping made by embedding small pieces of marble or granite in. Epoxy terrazzo interior gypsumbased underlayments interior.
Hitek polymers epoxy terrazzo and polymer flooring systems. As a membrane under thin set epoxy terrazzo it meets ntma and ttmac requirements. Anticrack membranes are intended to buffer any horizontal type movements thus effectively preventing cracks from occurring. Obtain primary epoxy terrazzo flooring system materials including membranes, primers, resins, and hardening agents from a single manufacturer.
Sikafloor 265 is able to operate as a waterproofing and crackisolation membrane. The crack resistance of the terrazzo was based primarily on two functions. Terroxy resin systems provides peace of mind by enhancing the durability of your flooring system with the finest selection of quality primers, antifracture membranes and sealers. To install tile larger than 12 x 12 300 mm x 300 mm or white and light colored marble use triple flex as a crack isolation membrane first. An epoxy terrazzo flooring assembly was installed in a mall about one year earlier. Epoxy terrazzo can be installed over most clean, properly prepared concrete slabs. Terroxy epoxy matrix and in color required for mix indicated. Other issues, such as thermal changes below or even above the slab as in the case of solar exposure through window walls, may contribute to heaving and shrinkage in the terrazzo independent of the substrate. Epoxy formulators introduced flexible epoxy membranes that are installed at. Mitigating reflective cracks in epoxy terrazzo finishes since the days of the roman empire terrazzo floors have provided beautiful, durable and easy to maintain finishes. The movement in the epoxy caused the terrazzo to crack in those areas.
Anti crack membranes are intended to buffer any horizontal type movements thus effectively preventing cracks from occurring. The black residual at the terrazzo divider strips was unreactive resin hardener residue, which is caused by not properly mixing the epoxy mix. Applications include balconies, walking decks, plazas and. Crack membrane if cracks in the concrete are present, a flexible membrane can. Performance varies also it is important to check with the crack isolation membrane manufacturer regarding their installation instructions and intended use. Membranes have been used to minimize epoxy terrazzo fissures due to concrete crack propagation caused by substrate moving and cracking. The problem investigation of cracked terrazzo flooring background. In applications where permanent climate control is operating, masterflex membrane applied over the entire slab isolates epoxy terrazzo from existing cracks and helps prevent future cracking. Moisture is epoxy terrazzos worst enemy and it is critical to treat it if necessary. Terroxy isocrack epoxy membrane, for substrate crack preparation and reflective crack reduction. Epoxy terrazzo will have three times the chemical, stain, and crack resistance of the cementitious thinset terrazzo. Epoxy terrazzo will have three times the chemical, stain, and crack. Key thinset epoxy terrazzo systems on key resin co. Terrazzo costeffective pricing doyle dickerson terrazzo.
Triple flex waterproofing, crack isolation membrane and flexible mortar 324. Use before the application of render coats over concrete, brickwork and concrete block substrates. Twocomponent, fast curing, solvent free, elastomeric and crackbridging, polyurethane waterproofing membrane. With the renaissance of terrazzo and the growth of thinset epoxy systems, the industry has focused much effort on controlling cracks in epoxy terrazzo finishes. Contact a doyle dickerson terrazzo representative and they can help discuss the features in greater detail. In the past, premium hard surfaces had a tendency to crack. Mtt concrete substrate crack detailing guidelines master terrazzo. Masterflex membrane hb 450 is a 100% solids, highbuild, two part flexible epoxy hybrid membrane. Epoxy terrazzo floor coatings instllation techniques. Floor aid flexible membrane is a two component epoxy system applied to concrete in order to assist with the prevention of substrate cracks. Most manufacturers recommend applying a primer first to improve the epoxy concrete bond. The terrazzo divider strips should have been fully bonded and supported with the epoxy leaving no voids, so it couldnt move. Learn about the design options and installation techniques for this highperformance epoxy coating.
Triple flex waterproofing, crack isolation membrane and. Mitigating reflective cracks in epoxy terrazzo finishes. Epoxy thin set terrazzo also offers flexible crack membranes to detail and treat substrate cracks and has. The ntma recommends the installation of thinset epoxy terrazzo, including ancillary components like primers, moisture mitigation, crack suppression membranes, etc. Epoxy terrazzo national terrazzo and mosaic association.
First, the epoxy terrazzo formulations were extremely high in tensile strength and second, they did not contain excess water that leads to shrinkage cracks or volume change during the curing process. Terroxy isocrack epoxy membrane is a 100% solid, flexible epoxy membrane designed to suppress reflective cracking in terroxy resin flooring systems. Guide specifications for epoxy thinset terrazzo with a crack. Tizard recommends using a crack isolation membrane. This significant problem is a memory now, thanks to sherwinwilliams stateoftheart crack suppression system. Epoxy can also be created in any color the designer wants. Some terrazzo floors have lasted over 100 years thanks to the proper care. Ctasc was retained to investigation why a terrazzo floor in a mall had developed cracks and staining. Anti crack membranes are designed to buffer any horizontal type movements and reduce cracking.
Terrazzco floor aid flexible membrane fm 528 is a 100% solids voc free, twocomponent epoxy resin system applied to concrete in order to assist with the prevention of substrate cracks transferring through to the finish floor system due to horizontal movement. Masterflex is used to treat cracks, joints, and terrazzo. These membranes have become industry standard for crack detailing and, in some cases, full slab coverage prior to the installation of the thinset epoxy terrazzo. Stanton notes that you can clean out the crack and if its not moving, you can grout it with epoxy and it will be barely visible. Elegant and timeless, durable and functional, key epoxy terrazzo sets the world standard for resinous terrazzo systems. Mapelastic ci is a quickdrying crack isolation membrane for use under ceramic tile or stone in both residential and commercial environments. Epoxy formulators introduced flexible epoxy membranes that are installed at a nominal 40 mils. In addition, it is used as an epoxy membrane for waterproofing and crack dampening under epoxy coating and flooring systems. Mapelastic ci is a premixed, liquidrubber, quickdrying crackisolation membrane for installation under ceramic tile or stone in residential and commercial interior and exterior environments. About epoxy terrazzo floors contemporary terrazzo floors have a wide range of color possibilities, selection of aggregates and design options. Epoxy resin crack isolation membrane, as recommended by epoxy terrazzo resin matrix supplier. The association establishes national standards for all terrazzo floor and wall systems and provides complete specifications, color plates, and general information to architects and designers at no cost. Most cracks can be avoided by honoring the joint in the.
Installers mix the twocomponent epoxy resin with the desired decorative aggregate and then pour the material onto the slab. Incorporates flexible epoxy masterflex membrane for crack detailing or in some cases full masterflex membrane to prevent crack mitigation from the substrate incorporates mastergard mvr1 moisture vapor suppression system which makes it possible to successfully install impermeable flooring not just terrazzo on concrete substrates with high moisture vapor emission mve. Then epoxy, or resinbased, terrazzo came along in the 1970s and revolutionized the world of terrazzo flooring, making it much more affordable. It is used on floors, joints and cracks subjected to heavy foot traffic, fork lift traffic and chemical attack, specifically food acids.
If you are looking for a long term flooring solution, terrazzo will benefit you. Resinous flooring, epoxy flooring, fluidapplied polymer. Invented by the venetians in the 1500s, cementbased terrazzo is one of the oldest types of decorative flooring systems. And terrazzos stalwart resistance to stains, chemicals, and scuffing means it can stand up to the toughest conditions. Flaws or cracks in the substrate will be telegraphed to the terrazzo surface. Mapelastic aquadefense provides a thin, continuous barrier to protect adjacent rooms and floors below from water damage. The detail shows moisture vapor primer which may also serve as a bonding. Key epoxy terrazzo produces a smooth, polished surface for floors. At some point the terrazzo flooring developed cracks, blisters, and tenting in various areas of the flooring. Hitek polymers inc offers two component 100% epoxy membranes designed to suppress reflective cracking up to. Once some headway is made as to causes, then comes the decision of whether to put a crack membrane down and fill the crack and or cut a new joint to relieve the stress on the floor.
Most manufacturers recommend applying a primer first to improve the epoxyconcrete bond. Epoxy systems become comparable to sand cushion cement terrazzo, in resistance to substrate. Allow to cure and install larger tile or marble with suitable white tec brand latexmodified thin set mortar or tec accucolor efx epoxy grout and mortar epoxy for interior only. Epoxy terrazzo also has excellent physical properties, average compressive strength of 14,000psi, tensile strength of 4,800 psi and flexural strength of 4500 psi, which gives it the best durability and crack resistance of any system. In many cases, multiple components or steps are part of the system.
Also, epoxy will not allow water vapor transmission, so the underlying substrate must be completely cured and dried. Triple flex waterproofing crack isolation membrane tec. Hitek polymers epoxy terrazzo and polymer flooring. When utilizing masterflex membrane, morricite thinset.
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