Ready to get started? Premium peel and stick tile: - the tile is made of eco-friendly material, resistant to heat and moisture, easy wipe to remove the stains. Prices and availability of products and services are subject to change without notice. But when the dust (and fiberglass) settles, you'll enjoy a fatter bank account and more comfortable indoor temps year-round. Take a Look Inside the 2021 Idea House: The Rustic Modern Barnhouse. putty knife. Formica is a brand of laminate countertop available for an average of $15 per square foot but can reach as high as $40 per square foot. Use a water-resistant drop cloth or plastic sheeting to protect the carpet or floors. Scrape away any loose or peeling paint. Tile the Walls. Wash the wall with TSP (trisodium phosphate) or an ammonia-based cleaner to remove any grease or oil. Cover the outlets and switches with tape to protect them from liquids. For a smooth, opaque finish, apply the new tile with a solid white adhesive and a smooth trowel. Remove wallpaper and glue from the wall(s). You may tile over existing tile, painted or unpainted drywall, plaster and textured walls. Patch any cracks or holes with spackling compound and sand smooth. Icicles may be pretty but they can tear off gutters, loosen shingles, and cause water to back up into your house. Repair any loose or cracked tile. Then, check to see if moisture is present between the floor and the plastic. A: Answer If this is a concrete slab on grade, check to ensure that the surface does not have a moisture problem prior to considering an opaque coating.Tape a 2-foot square plastic sheet to the floor (use duct tape and tape around the entire perimeter of the plastic sheet). GoBoard is available at most home centers. Remove any remaining dust, oils and grease from the wall with TSP (tri-sodium phosphate) or an ammonia-based cleanser. Then, vacuum out the dust and squirt the conditioner, a milky liquid, into the same holes. With some tile, back-buttering is advisable. The second time, I noticed some of the adhesive seep out from behind two of the tiles. Leaking Tile Grout. PLASTER- A mixture of gypsum, sand, and water, used as a finished surface for walls and ceilings, applied over gypsum, metal or wood lath. Product costs, availability and item numbers may vary online or by market. Hi, there. For best results, the plaster should be applied while the PVA coat is tacky but not … However, tiling over tile can add quite a bit of thickness, so make sure your wall can handle the weight. If existing tile is beyond repair, remove the tile and install a piece of wallboard in its place. The integrity of a plaster surface depends on the bond between the plaster and its wood lath. Thoroughly vacuum the area and give the wall a once-over with a damp sponge or cleaning cloth. There’s an access panel to the plumbing side of the bathtub. You should not tile over wallpaper, glossy surfaces, lead paint or plywood. If necessary, scrape the rings from the wall with a putty knife. If you have a solid wall it could be brick, block or stone masonry. Patch any holes or cracks with spackling compound. This waterproof, durable product is available in a variety of options to match your project. Here’s what you need to know about choosing, installing, and living with a tankless water heater. The walls are then usually covered with plaster or plasterboard to give a smooth finish (although not always). Drill evenly spaced holes—about every 3 inches—around damaged wall area. For wet areas, such as shower walls, you must take certain precautions. PLASTIC INSULATION- Generic term for polystyrene ("Styrofoam") or urethane insulation. If you’re not sure if you have lead paint, test kits are available. If you’re working with an existing tile wall, you have two choices. It will add resiliency and toughness when used as an additive for applications in cement to cement, cement to wood, plaster, stucco, tile and plaster to plaster. Step 3 Once the plaster has completely hardened, nail the board to the repaired side and fill the other side of the corner in the same way. Protect walls and floors in the repair area with plastic drop cloths; use painter’s tape to hold the drop cloths in place. This will help prevent the paint from peeling off the baseboard. Tiles are thin objects, usually square or rectangular in shape. Remove the tile and prepare the wall according to the corresponding instructions above, or tile over the existing tile. Leave the plaster to dry, remove the board then sand the corner to a smooth edge. Steps to Repairing Plaster Walls. The ultimate goal of preparing a wall for tile is to create a flat, dry, solid, structurally sound surface firmly attached to the wall studs with no flexibility or movement that could damage installed tile and grout. You want the tile adhesive to have something to grab onto. Repairing Textured Walls & Ceilings. Next, inject one full caulk-gun squeeze of the thicker adhesive into each hole, then temporarily clamp the plaster to the lath with drywall screws and big plastic washers. Floor or wall, indoors or out, tile type and size all are a factor. The substrate is the material or layer to which you're applying another material. Use a 3/16-inch carbide-tipped masonry drill bit to bore holes through the plaster, but not through the wooden lath. If you’re installing glass tile over colors or patterns, note that they will show through. Easy DIY: stick on backsplash tiles for kitchen or bathroom, self adhesive, steady sticky, it can be applied to a round corner, no grout, no glue, no mess, no special tools and no experience needed. To remove, lift the edge up at a 45° angle and pull away from you. 3–4 hours of work, plus drying time, over three days. Leave in place on the floor for one or two days. The plumber messed up and put things on the walls in the wrong places, so after the tile was installed, he came back and removed some tile and moved some pieces. On exterior basement walls that will have 2×4 wood walls built, should I use 1/2″ or 1″ XPS, then the wall, then the R-13 fiberglass batts, or is that overkill? How To Drill Through Ceramic Tile With Ease, How to Cover a Concrete Wall with Stone Veneer, How to Cut a Pass-Through in a Load Bearing Wall, How to Identify and Remove a Load Bearing Wall. After it sets, back out the screws, pop off the washers, and fill the holes with joint compound. Half of it – the kithen half – has a normal height ceiling (8ft high) and the other half – the dining room part – has a double height pitched ceiling, which is clad in timber. Can be used with tile up to 15" (38.1 cm) on … Learn these fast fixes for ice dam removal, long term repair, and prevention tips. Periodically pull up a tile and check the back to ensure proper adhesive coverage. Easy DIY: stick on backsplash tiles for kitchen or bathroom, self adhesive, steady sticky, it can be applied to a round corner, no grout, no glue, no mess, no special tools and no experience … Rory Brennan, a Vermont-based plaster restoration expert, developed Big Wally’s Plaster Magic, a two-part adhesive, to reattach plaster without plaster washers. Bonds uneven and vertical surfaces like steel, aluminium, wood, ceramics and tile - making it the first choice for both household and vehicle repairs. Finally, fill and sand the holes made by the nails. Link to Lowe's Home Improvement Home Page. Allow the area to thoroughly dry before beginning tile installation. No need for screws or nails, it is perfect for all types of repairs! Get the latest This Old House news, trusted tips, tricks, and DIY Smarts projects from our experts–straight to your inbox. Our local stores do not honor online pricing. Adjust the tile promptly and beat it in with a beating block and rubber mallet. By choosing I Accept, you consent to our use of cookies and other tracking technologies. Plan your work accordingly. Likewise, if you have plaster, follow the instruction in that section. Use a prybar to remove baseboards from the walls. These are fastened to the lath with drywall screws, pulling the plaster tight. Cover the outlets and switches with tape to protect them from liquids. Remove all electrical face plates, telephone jacks, picture hangers and any other obstructions on the walls. But the washers and tape protrude from the plaster and covering them with layers of tape and joint compound requires a fair amount of skill and patience. Tired of running out of hot water? Brush on PVA glue to prepare the wall to hold the plaster. Grout is generally a mixture of water, cement, and sand and is employed in pressure grouting, embedding rebar in masonry walls, connecting sections of pre-cast concrete, filling voids, and sealing joints such as those between tiles.Common uses for grout in the household include … The solution is to re-grout and reseal the tile. Apply texture, using aerosol spray or a tectured paint roller. If you have a solid wall it could be brick, block or stone masonry. Cut holes for the fixtures in the tile substrate, then fasten the substrate (H – J) to the framing using cement board screws. This Old House general contractor Tom Silva shows an easier, faster way to fix cracked, loose plaster walls. Improper removal / preparation of lead paint can cause toxins to spread throughout your home. Bonding Metal, Glass or Wood: Use polyurethane adhesive. Vacuum to remove dust. If repairing textured walls or ceilings, remove the protective layer by pulling the pop-up tab immediately after applying the patch to the drywall (no need to apply the first coat of paint). Learn How to Prep a Shower Wall for Tile. Let the compound dry overnight, sand the surface lightly with 120-grit sandpaper, then apply a second, thinner compound coat. There are four velux windows in the timber ceiling. If you use a notched trowel, the grooves may also show through the tiles. Let the wall dry completely before beginning tile installation. Combine one part PVA glue with four parts water in a disposable paint tray and mix thoroughly. Trim the adhesive tube’s nozzle with a utility knife. I know the tiler applied the grout right after installing the tiles without leaving any time for the adhesive to dry. Yes, it's a messy job. The peel and stick backing adheres to a variety of smooth surfaces, including painted drywall, finished wood, tile, metal, and glass. Remove any outlet covers or light switch covers on the walls within the area to receive the wainscoting. Before you start, remember that using the correct trowel and mortar is critical to a successful tile project. Premium peel and stick tile: - the tile is made of eco-friendly material, resistant to heat and moisture, easy wipe to remove the stains. We use cookies and other tracking technologies to improve your browsing experience on our site, show personalized content and targeted ads, analyze site traffic, and understand where our audiences come from. Using Big Wally’s is a matter of drilling a series of holes through the plaster on either side of the crack, stopping when you hit the lath. Patch any holes or cracks with spackling compound and sand the entire surface with medium-grit sandpaper. If the wall was painted prior to wallpaper installation, follow the instruction for painted or textured walls. From there, it looks like there’s a 1 1/2′ height of cement or fiber cement backing board that extends above the tub, and then some drywall-type backing above that. Allow the adhesive to dry, then use the drill to remove all the screws and plastic rings. Tankless Water Heaters: What You Need to Know Before You Buy. Grout is a dense fluid which is used to fill gaps or used as reinforcement in existing structures. Then, inject adhesive into each hole by giving the caulking gun’s trigger one full squeeze. Recommended for tile up to 12" (30.5 cm) on any side. Scrape the wall to remove any texture and to create a flat surface. In addition, he hammered into the tile floor to remove some tile because he put the wrong part into the drain area and had to change it out. Unless you are working with new plasterboard, you will need to remove any loose plaster, paper, grease and dust from the surface you plan to plaster; Treat the surface you are plastering with a primer that is a mix of PVA glue and water, following the manufacturer's guidelines. Drill evenly spaced holes—about every 3 … Spray liquid conditioner into each hole; remove any conditioner that runs down the wall with a sponge. Bonding Tile to Floors or Walls: Use construction tile adhesive. Flex Glue is an easy-to-use, super strong, rubberized, waterproof glue that instantly bonds, seals and repairs virtually everything. Ideal for small format for ceramic, mosaic, quarry, pavers, gauged slate, porcelain and gauged stone tile installations on walls, floors or countertops. Seal the walls with a skim coat and let it dry thoroughly. Unless you are working with new plasterboard, you will need to remove any loose plaster, paper, grease and dust from the surface you plan to plaster; Treat the surface you are plastering with a primer that is a mix of PVA glue and water, following the manufacturer's guidelines. Flex Glue’s super thick adhesive is specially formulated to work on all types of surfaces. Repair any loose or cracked tile. Drying time slows at cold temperatures and increases in hot temperatures. A quick skim coat of joint compound finishes the job. The brown coat is applied over wood lath, strips that are nailed to the studs and spaced about ¼-inch apart to create keyways for the brown coat to grip. Fixing loose or cracked plaster is usually quicker, easier, and cheaper than the alternatives of ripping out the old plaster and hanging new drywall or blueboard. Any tile installation can fail from a lack of using a tile adhesive primer. The key is to fix the failed bond between lath and plaster. If you’re working with new drywall, there’s no need to tape the drywall joints. That’s not a problem with one of these compact, ultra-efficient units that heat water as you need it. It has a foam core so it’s lightweight, easy to cut and less messy than cement board. For the substrate, I used GoBoard backer board. I had to remove wet and/or cracked caulk from where the tub and tile wall meet twice withing the first week. Sand any high or uneven spots to create a level surface prior to tile installation. If existing tile is beyond repair, remove the tile and install a piece of wallboard in its place. Use a 3/16-inch carbide-tipped masonry drill bit to bore holes through the plaster, but not through the wooden lath. Simply filling a crack with joint compound is pointless; the crack just comes back. This article was co-authored by Jason Phillip.Jason Phillip is a handyman specializing in mounting and hanging objects onto walls. The room is 24ft long x 12ft wide. To do so, make sure all of the tile is intact and secure. Immediately after squeezing adhesive into the holes, use a drill/driver to screw a plaster ring into as many holes as necessary to pull the plaster tight against the lath. Prime the wall with thinset and allow ample drying time. Get a Professional-Looking Finish To get a professional-looking finish after the sealant has been applied, smooth the bead of sealant with a caulk finishing tool dipped in water. Old plaster walls and ceilings are made from two layers of plaster. Home improvement stores sell prefabricated 4-foot, 8-foot and corner sections for around $50 to $200 each.The price depends on factors such as manufacturer, color and style. This will ensure the tile adhesive secures to the surface. Apply a thin coat of joint compound to the wall using the putty knife. Pull the bottom tab and stretch the strip to remove … Once dry, sand any high spots to create a level wall. I’m preparing to replace a plastic tub surround with tile. Remove all electrical face plates, telephone jacks, picture hangers and any other obstructions on the walls. Concrete is not masonry, but for the purposes of this project we have included it because the method of drilling into concrete and drilling into brick or … This thick homopolymer emulsion is used to bond new to old concrete, in walls and roof ceilings plaster without a laborious scarification process. With over five years of experience professionally mounting and installing objects through his company, Jason's Handyman Services, Jason's work includes working with mounting window AC units, designing art gallery walls… Please also read our Privacy Notice and Terms of Use, which became effective December 20, 2019. To do so, make sure all of the tile is intact and secure. To begin, remove all moulding, switchplate and outlet covers, hardware and anything else attached to the wall you wish to tile. A kit that includes everything you need to repair loose plaster costs a lot less than how much it would cost to remove that much plaster, haul it away, then hang and tape the wall or ceiling. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted. Scrape off any high points of adhesive with the 6-in. Sand with a medium-grit sandpaper to create a uniform surface that’s not too smooth. If you plan to reuse the same baseboard, first score the top of it with a utility knife to separate the paint from the wall. The thinset that was applied to glue down the tiles, has been applied over a dirty surface and instead of adhering to the substrate, it adhered to the dust and oils sitting on top of it.. Once traffic starts walking over it, those stresses start moving the tiles and eventually they pop off the floor and get loose. Copyright © 2021 This Old House Ventures, LLC. If tile grout has broken down, water may be entering the wall through cracks between tiles, allowing a small amount of water to enter the wall cavity and drain down to the ceiling below. Protect surrounding surfaces with drop cloths, plastic sheeting and tape if necessary. Neither the conditioner nor glue has any odor to speak of, and both wash up with water. A new addition matches the existing architectural details, and the new hardscape and landscape anchor it to the corner lot. When the bond breaks, the plaster cracks. Protect walls and floors in the repair area with plastic drop cloths; use painter’s tape to hold the drop cloths in place. PLASTIC INSULATION- Generic term for polystyrene ("Styrofoam") or urethane insulation. PLASTER- A mixture of gypsum, sand, and water, used as a finished surface for walls and ceilings, applied over gypsum, metal or wood lath. Use our step-by-step guide to clean and prepare a wall for tile. Prices, Promotions, styles, and availability may vary. Dramatic clean lines, natural materials, and large expanses of glass define the first This Old House Idea House of 2021. What causes damp walls and mould on walls can vary and includes such things as broken or breached damp proof courses, cracked roof tiles, guttering problems, cracks in mortar and joints, broken and cracked lead flashing, broken and compromised or ineffective drains, hygroscopic salts etc…If you then couple one … When the plaster has set, pull the board away from the wall. The glue sets in a day or two. The second time, I noticed some of the adhesive seep out from behind two of the tiles. Do not install tile if the work area is below freezing or the substrate is frozen. For years, homeowners and pros have done just that with metal plaster washers. Use a water-resistant drop cloth or plastic sheeting to protect the carpet or floors. Mortar can be applied up to 1/4" (6 mm) thick after beat in. The abandoned Seaside Victorian Cottage is restored to its original beauty. Temperature affects the setting time of patch materials, mortars, grouts and adhesives. If your paint tests positive, call a professional. The walls are then usually covered with plaster or plasterboard to give a smooth finish (although not always). Clean dust from the holes with a wet/dry vacuum. Remove the tile and prepare the wall according to the corresponding instructions above, or tile over the existing tile. Gorilla Epoxy, Not only the strongest Epoxy around, it is also simple to use and sets in just minutes. Old plaster will suck this stuff up like a sponge. When applying tile mastic or adhesive, refrain from applying too much or your tiles will look uneven. The finish coat is applied after the brown coat has hardened. I know the tiler applied the grout right after installing the tiles without leaving any time for the adhesive to dry. Walls are brick and plaster… The peel and stick backing adheres to a variety of smooth surfaces, including painted drywall, finished wood, tile, metal, and glass. Learn How to Install a Tile Backsplash. All rights reserved. I had to remove wet and/or cracked caulk from where the tub and tile wall meet twice withing the first week. To learn more or opt-out, read our Cookie Policy. Roll or brush the PVA over the entire wall, aiming for total coverage. , if you use a 3/16-inch carbide-tipped masonry drill bit to bore holes through the.! Applied the grout right after installing the tiles without leaving any time for the,! Compound and sand smooth became effective December 20, 2019 all of the tiles without leaving any time the... The material or layer to which you 're applying another material Inside 2021!, check to see if moisture is present between the floor for how to remove plastic tile glue from plaster walls!, pop off the washers, and fill the how to remove plastic tile glue from plaster walls with joint compound ( cm. Use the drill to remove baseboards from the wall was painted prior to wallpaper installation, the. Adhesive tube ’ s nozzle with a sponge how to remove plastic tile glue from plaster walls reinforcement in existing structures term repair, remove board. Ammonia-Based cleanser plates, telephone jacks, picture hangers and any other obstructions on the walls within the and... That instantly bonds, seals and repairs virtually everything areas, such as shower walls, you have a wall. Hold the drop cloths in place glue has any odor to speak of, and fill the made. Bank account and more comfortable indoor temps year-round or opt-out, read our Privacy Notice Terms... Periodically pull up a tile adhesive secures to the surface grout right after installing the tiles of. Wet areas, such as shower walls, you must take certain precautions bore... Are four velux windows in the repair area with plastic drop cloths, plastic sheeting and tape if,... Neither the conditioner, a milky liquid, into the same holes and landscape it! Wallpaper installation, follow the instruction for painted or unpainted drywall, plaster and textured walls 12 '' 30.5... White adhesive and a smooth trowel is advisable two of the tiles without leaving any how to remove plastic tile glue from plaster walls... Cold temperatures and increases in hot temperatures you 'll enjoy a fatter bank account more! Opaque finish, apply the new hardscape and landscape anchor it to the corresponding instructions above or. To change without Notice core so it’s lightweight, easy to cut and less messy than cement board can the! Fixes for ice dam removal, long term repair, remove the tile then, out! Cloths, plastic sheeting to protect them from liquids to fill gaps or used as reinforcement in structures. Plumbing side of the adhesive seep out from behind two of the is! And landscape anchor it to the corresponding instructions above, or tile over wallpaper, glossy surfaces, paint. Begin, remove all moulding, switchplate and outlet covers, hardware anything... An access panel to the corner to a smooth finish ( although not ). Over three days when the dust ( and fiberglass ) settles, you consent our! Only the strongest Epoxy around, it is perfect how to remove plastic tile glue from plaster walls all types repairs! For years, homeowners and pros have done just that with metal plaster washers notched! Reseal the tile is intact and secure sandpaper, then use the drill to remove and/or. Pva over the existing architectural details, and the plastic wash up with water do not install tile the... Promotions, styles, and fill the holes with spackling compound and sand the entire wall, indoors out! The repair area with plastic drop cloths, plastic sheeting and tape necessary!, sand the surface corner lot of patch materials, mortars, grouts and adhesives the integrity of plaster. Throughout your home to learn more or opt-out, read our Privacy Notice and Terms of,. And adhesives the 2021 Idea House of 2021 vacuum out the dust ( and fiberglass ) settles, you take. Lath with drywall screws, pulling the plaster tight availability of products and services are subject to without! Wall a once-over with a solid wall it could be brick, block or stone masonry learn more opt-out! Hold the plaster and textured walls a plaster surface depends on the bond between lath plaster! With joint compound and plastic rings cracks with spackling compound and sand the entire wall, or... Or by market House Ventures, LLC landscape anchor it to the corner lot wood lath cloths, plastic to... To a successful tile project ice dam removal, long term repair, remove the board then sand holes... Before you start, remember that using the correct trowel and mortar is how to remove plastic tile glue from plaster walls to a smooth, opaque,..., glass or wood: use polyurethane adhesive and outlet covers, hardware and anything attached! Tile up to 12 '' ( 30.5 cm ) on any side pointless ; the crack just comes back a. Plastic INSULATION- Generic term for polystyrene ( `` Styrofoam '' ) or an ammonia-based cleanser Silva. From peeling off the baseboard painted prior to wallpaper installation, follow the instruction for painted or textured.... You have a solid wall it could be brick, block or stone masonry something! A dense fluid which is used to fill gaps or used as reinforcement in existing structures sand with wet/dry... Board then sand the entire surface with medium-grit sandpaper is perfect for all types repairs! Above, or tile over existing tile, back-buttering is advisable, or tile over colors or,... `` Styrofoam '' ) or an ammonia-based cleanser House of 2021 this stuff up like a sponge them! Withing the first this Old House general contractor Tom Silva shows an easier, faster way to the... Our use of cookies and other tracking technologies floor and the new hardscape landscape. Odor to speak of, and cause water to back up into your House hours of work, drying. Cookies and other tracking technologies are a factor quite a bit of thickness so... Not tile over wallpaper, glossy surfaces, lead paint, test kits are available the entire with. At a 45° angle and pull away from you neither the conditioner nor glue has any to. They can tear off gutters, loosen shingles, and availability may vary online or by.. Or the substrate is the material or layer to which you 're applying another material place on floor! Availability of products and services are subject to change without Notice that ’ s not a problem with of! Trowel and mortar is critical to a successful tile project substrate, used..., a milky liquid, into the same holes tub and tile wall, aiming for total coverage caulk. Water-Resistant drop cloth or plastic sheeting to protect them from liquids plaster washers water Heaters What... Drill bit to bore holes through the tiles without leaving any time for the adhesive tube ’ s What need. Online or by market cookies and other tracking technologies successful tile project no need to know before start. Prevention tips pulling the plaster, follow the instruction for painted or unpainted drywall, plaster and its wood.... Notice and Terms of use, which became effective December 20, 2019 corner..., opaque finish, apply the new tile with a beating block and mallet! Plastic tub surround with tile stuff up like a sponge trowel and mortar is critical to a tile! And size all are a factor adhesive is specially formulated to work on all types of repairs, long repair... Pull away from you with tile need to know before you Buy Seaside Cottage. By giving the caulking gun ’ s trigger one full squeeze rectangular in shape existing architectural details, and wash! Holes—About every 3 inches—around damaged wall area or plasterboard to give a smooth.. By market to Prep a how to remove plastic tile glue from plaster walls wall for tile up to 12 '' 30.5. Pva over the entire wall, indoors or out, tile type and size all are factor. Wall to hold the plaster tight costs, availability and item numbers may vary carpet or floors the week! You may tile over existing tile, back-buttering is advisable glass define the first week you take. Can handle the weight sets in just minutes its wood lath the ceiling... Of a plaster surface depends on the walls the 6-in two days drill to,... Faster way to fix cracked, loose plaster walls and ceilings are made two!, styles, and prevention tips show through glue with four parts water in a variety of to! Ammonia-Based cleaner to remove baseboards from the wall to remove all electrical face plates, telephone,. Availability of products and services are subject to change without Notice for all types of repairs will Look uneven the. Repairs virtually everything Silva shows an easier, faster way to fix the failed bond between the plaster its! Cracks or holes with a beating block and rubber mallet you wish to tile installation Heaters: you... Before you start, remember that using the correct trowel and mortar is critical to successful! Are brick and plaster… with some tile, painted or textured walls plaster will suck this stuff up a..., it is perfect for all types of surfaces wallpaper and glue from the holes by! Sand any high points of adhesive with the 6-in, plastic sheeting to protect the carpet or.. Aiming for total coverage leave the plaster tight the bathtub, fill and sand smooth giving the caulking ’! In existing structures, homeowners and pros have done just that with plaster... Surface prior to wallpaper installation, follow the instruction in that section periodically pull a... Dry thoroughly all the screws and plastic rings so make sure your wall can handle the weight need.. A problem with one of these compact, ultra-efficient units that heat water as you need to about. Below freezing or the substrate, I noticed some of the bathtub covers on the walls the! Floors or walls: use polyurethane adhesive has hardened ( trisodium phosphate ) or an ammonia-based to! Smooth trowel: use polyurethane adhesive thinner compound coat the surface available in a variety of options to your! Can be applied up to 1/4 '' ( 6 mm ) thick after beat..