Go for the polymer additives or polymer-modified mortar if you are using it in one of these specific situations: to cover exterior-grade plywood; to cover plastic laminate or ceramic tile; to cover plaster or drywall with paint on it; to seal any areas that will be exposed to freezing temperatures, or to cover cutback adhesives. In the past, some professionals were using the so-called cutback mastic adhesive to hold tiles. It is strong, water resistant and once in place, it cannot be scraped or sanded easily. Prior to the installation of floor covering systems, Triseal will also seal floors in dusty … Asbestos Adhesive Lawsuits. Do not sand or grind adhesive residue, as harmful dust may result. Many modern mastics are latex, or water-based, and can be softened with water. The cut-back could possibly contain asbestos or may be a bitumen compound. 415-EICHLER. Thinset is the glue that holds your tile to your floor or wall. The issue at hand is that the plasticizers in the vinyl migrate down through and attack the Cutback Adhesive which softens it and then the cutback starts migrating up, causing staining in the vinyl flooring. In the 1990s, for example, two engineers filed lawsuits against North American Refractory Company (NARCO). Encapsulating Cutback – Tar Like Adhesive If you are a handyman, renovator, or DIY’er, you have probably encountered a black, tar like, adhesive used for vinyl tile in the past. Kerabond™ T Premium medium-bed and thin-set tile mortar. You shouldn't try any method of removal that will create dust (such as sandblasting, dry scraping or dry sweeping), as breathing in the particles is extremely dangerous to your health. The tiles were popping off in one piece with little effort. Available at: Find Local Retailer Calculate Materials. I recently took up a floor with this situation. … Mastic is an adhesive that, along with thin-set mortar, is used to stick tile to wall or floor surfaces before grouting. Cutback adhesive is a solvent-based formula that is made to adhere vinyl tiles, sheet vinyl, indoor and outdoor carpeting to a surface, as well as a variety of other adhesive duties. VOC Free Latex Adhesives. PACKAGING 1415RB50 - 22.7 kg (50 lb) Bag (grey) R-FLEX III 1415 Polymer Fortified Thinset Mortar FEATURES • Meets the requirements of ANSI A118.4 and ANSI A118.11 From high-strength construction epoxy adhesive to thinset or thick bed mortar, LATICRETE adhesives are custom-formulated to deliver speed and efficiency on the entire range of applications. I don't think I have used Noble EXT this way, likely only thinset under CIS over cutback/concrete. Dealing with Cutback AdhesiveWith the resilient flooring industry shifting to more and more vinyl backed products, dealing with old cutback adhesive residue can become an issue. Cutback adhesive is a solvent-based formula that is made to adhere vinyl tiles, sheet vinyl, indoor and outdoor carpeting to a … Adhesive layers must be removed, as they reduce mortar bond strength to cement surfaces. Mike Antonetti I Support TFP Senior Member. Others have suggested using an elastomeric fast-dry concrete "link" topped with a a higher quality thinset like Flexbond or Versabond. The removal of cutback using grinding, sanding or blasting may contain asbestos. Re: Tiling and cutback on concrete Shawn, yes, we scrape anything that will come off the cutback, then clean it. The flooring structure below the cutback adhesive must be the proper thickness. The adhesive you describe is cutback adhesive. After the skim coat has cured, we install the membrane with whatever is appropriate. Almost every modified thinset these days is approved for going over cutback, Mapei Ultraflex 2 is a good all-round thinset. Do not sand or grind adhesive residue, as harmful dust may result. Can I put an SLC (like the Henry product available at Home Depot) over my cutback adhesive, the apply an epoxy garage floor coating on top of that with good results? You need to try to remove as much of the adhesive as you possibly can. In fact, it is such a thin layer that when I rub my finger across an area where there is adhesive and isn't adheisve, I can barely tell any height difference whatsoever. this forces the thinset into the micropockets and greatly enhances adhesion (also known as back buttering the tiles and floor). Discover MAPEI mortar & tile adhesive products, from polymer-modified to dry-set mortars and latex additives. This poses serious health concern. The standards also help to identify adhesive bond or joint mechanical properties which include strength, creep, fracture, and fatigue. The chemicals don't work and could cause even deeper penetration of the black adhesive. The different effects of environmental factors on adhesive bonds and joints are also evaluated. If that floor is from the sixties, its quite possible that the tile your removed and the adhesive both contain asbestos. Jun 19, 2018 … Tile mastic is a ceramic tile adhesive that is used mainly on vertical spaces like walls. Learn what you need to complete your next DIY project. Applications Asphalt-based cutback adhesive remaining on a concrete floor after removing old vinyl tile and other flooring represents one of the most difficult and risky subfloors for the installation of new flooring. Cutback adhesive SETTING MATERIALS VERSABOND® FORTIFIED THIN-SET MORTAR Pro formula, all-purpose mortar Very good bond strength for most installations Fast setting even in cold weather Polymer modified — Exceeds ANSI A118.4 and A118.11 PRICE DSC137 5/07R … I've found thinset doesn't usually adhere well if there is a decent amount of cutback left in the floor. The adhesives are utilized to form bonds or joints between adherend materials which can be metal, wood, or plastic. Use extreme caution; adhesives may contain asbestos fibers. You can remove the black cutback with a product called "Bean-E-Doo". Acrylic Additive), asphalt cutback adhesive, vinyl asbestos tile (VAT), linoleum or non-cushioned sheet vinyl, existing ceramic tile and cementitious terrazzo. The adhesive that I assume to be cutback is black in color, however it is very thin. If I go the peel and stick route Armstrong S-700 Thin Spread Floor Tile Adhesive can be used without scraping down to the residue layer. Not to worry. Jiong. 200 Multipurpose Adhesive; 210 Contract Grade Adhesive; 90 Duoflex Premium Adhesive Offline . Cutback adhesive is an asphalt-based glue that was common years ago for attaching vinyl or asphalt tiles, and it usually contains asbestos or crystalline silica. Unmodified vs modified. Leveling a Subfloor It's not uncommon for subfloors to develop low spots or other imperfections over time, but before installing a new floor over one, it's very important to address these issues and make certain the subfloor is level. If you can't scrape yours to a stain, I wouldn't even consider tiling over it. Bonding to Cutback Adhesive. Ceramic Installation Systems. XL Brands TriSeal Adhesive Residue Encapsulator – Triseal is a light-colored, high-strength acrylic polymer compound formulated to isolate *cutback and other types of old adhesive residues that would affect the bond of the new floor adhesive over concrete substrates. C-Cure thinset mortars approved for use over properly prepared Cut-Back Adhesive Residue are: 1) M-Flex Strata 914 Dry-Set Mortar 2) PST 948 additive mixed in lieu of water with C-Cure ThinSet 911 Dry-Set Mortar 3) UniFlex 916 Elastomeric Dry-Set Mortar Follow all applicable instructions found on containers and information sheets. If the cutback adhesive is installed over plywood - see LATICRETE TDS 152 "Bonding Ceramic Tile, Stone or Brick Over Wood Floors" for more information on the proper subfloor and underlayment thickness). If I didn't know any better, I'd think it was painted on the concrete. Use extreme caution; adhesives may contain asbestos fibers. Mastic is a general term for a type of glue-like flooring adhesive. Professional, ready-to-use tile adhesive. If you'll read the installation instructions for the bonding mortars that the manufacturers indicate for use over old cutback adhesive, I think you'll find they want the cutback reduced to a stain. This stuff appears pretty nasty and probably is. • Adhesive residue (except tacky or pressure-sensitive adhesive) All substrates must be dry, structurally sound with maximum deflection per industry Lstandards of ⁄360 for ceramic Ltile installations and ⁄720 for natural stone installations; and free from oil, grease, dust, paint, sealers or concrete curing compounds. Since the tile is already gone, no sense in worrying about it now. (e.g. It is strong, water resistant and once in place, it cannot be scraped or sanded easily. Adhesive layers must be removed, as they reduce mortar bond strength to cement surfaces. Ceramic Tile Adhesives. Product Menu. Cutback adhesive is a solvent-based formula that is made to adhere vinyl tiles, sheet vinyl, indoor and outdoor carpeting to a surface, as well as a variety of other adhesive duties. Joined: Dec 11 2005 . The adhesive is known as "cutback" by the way. Thousands of workers harmed by asbestos exposure have filed lawsuits against asbestos adhesive manufacturers to seek compensation for their medical costs and suffering. Search Mapei's products results for: Premium Mosaic and Glass Tile Mortar with Polymer Adesilex P10 Mosaic & Glass Tile is a premium-grade, bright white, multipurpose thin-set mortar formulated with non-sag properties. January 31, 2006 - 12:58pm #7. Looking for a cheap, easy to do way to have a modern floor in my basement. Bonding to Cutback Adhesive. Once you have removed as much cutback as is humanly possible then you can use a modified thinset rated for use over cutback adhesive to install your tile. Thinset Decoded: Which is the best thinset to use for Ditra, Kerdi, porcelain tile, floors, large tile, wood look tile, and showers. By contrast, asphaltic cutback adhesive is an older type of mastic made with asphalt-based cement. Top. sariebell, Oct 11, 2012 #1. I think I would put the coating over the glue. Removing Black Cutback Adhesive. For cutback adhesive residue, verify that the thin-set manufacturer's mortar is compatible. It was the black mastic (cutback adhesive) from the old tiles that I was asking about. Be careful though, as many old cutback adhesives contain asbestos-don't grind or sand it. Kerabond T is a premium-grade, nonsag, nonslump mortar for use in thin-set and medium-bed applications in interior/exterior residential and commercial floors and walls when mixed with water.