If you have a concrete garage floor, driveway, sidewalk, or patio that is starting to show its age, you are left with two options: You can demolish and remove the old surface, prepare the base, and pour a new slab; or you can use a resurfacing process to restore the slab to its youthful appearance. Concrete resurfacer is a very strong product, rated for a compressive strength of about 4,500 psi. He has also edited and written multiple articles and books on the topic. Concrete resurfacer should not be applied in cold weather. That’s pretty much it. If you are fully resurfacing a concrete slab, make sure to use a resurfacer designed for the purpose, such as Flo-Coat Concrete Resurfacer from Sakrete, Concrete Resurfacer from Quickrete, or Re-Cap Resurfacer, also from Quickrete. Score in a horizontal pattern. It's sometimes called a skim coat, a rapid coat, or a thin coat. Scratch coat shall substantially cover the lath. I was nervous about this part but once you start, you get a nice rhythm going. (3 mm) 4 Skim coat of stucco material ¼ in. Now it was time to mix up the concrete feather finish and start coating the fireplace! … Such a slab is probably not a good candidate for resurfacing. You may also find both consumer-grade and commercial-grade products available; the commerical grades are designed to be more durable than the consumer grades. Lots of high and low spots. Let the final coat overnight dry. I found a handy tool when I was skim coating a wall that also made this job a lot easier. A number of tools and materials are available to do-it-yourselfers that, in most cases, make skim coating preferable to demolishing and replacing old, damaged concrete. 3 hours. Skim coating can freshen up old concrete blocks and give your home or a wall on your property a new look. Skim-coating is the process of applying a thin layer of material, such as cement, over a wall to even out the surface. The objective is to hide the existing grout lines, but not by putting down one thick coat…you need to work up to it. Apply from featheredge to 1" thick. Average thickness is 12mm. This does not work for very long, since mortar lacks the additives and bonding agents that allow resurfacer to adhere to the slab. This is a thinner mixture than the Texture Pave below and will be approximately one-eighth of an inch thick. 6.5 quarts of water were added to each 55 pound bag of Thin Finish. Always invest in a true concrete resurfacer when renewing a concrete slab. Skim coating in floor preparation is a process in which a compound is applied to the subfloor as an underlayment to reduce variations in the floor and provide for a smooth and adherable surface over which new floor coverings can be installed. Application thicknesses can range from 1/4 inch to 2 inches or more, depending on whether the overlay will be imprinted with a shallow or deep texture. 2 hours. NOTE: for patches or cracks over ¼-inch thick Concrete Patching Compound should be applied in multiple layers, allowing each layer to dry before applying the next. Because of their high polymer content, vertical mixes require no curing. Apply a second coat to a nominal thickness of 3/8-inch (9.5 mm) brown coat. Concrete resurfacer is a special cementitious product that blends ordinary Portland cement, fine sands, polymer modifiers, and other additives aimed at providing adhesion. Water Penetration Testing of Stucco on Concrete Masonry Construction Page 4 Table 1—Wall Specimens and Stucco Thicknesses Stucco Thickness Number of Walls Description None 1 Control wall – no stucco ⅛ in. But a slab with small cracks, chips, and spalls where pieces of aggregate have come loose is an ideal candidate for resurfacing. Powered by WordPress, Pimp My Cabinets, Phase 3: Crowning Achievement, Chapter 1: Beginnings (September 2012 - May 2014), http://www.buddyrhodes.com/pure-pigments-for-concrete/, Updating a Kitchen on a Budget - 15 Awesome (& Cheap) Ideas - Refresh Living. Open the premixed concrete and scoop some with a flat metal trowel. You don't have to worry about trowelling to a level surface, as you do when pouring a slab with new concrete. The application of concrete resurfacer is quite an easy process. These tutorials assume the pre-existence of countertops, albeit ugly ones. They pour and spread easily, and your only real job is just to ensure that the resurfacer has been spread around the entire surface. Jeff Beneke is a home renovation and conversion expert. He was. Because resurfacer is an expensive product, some homeowners try to do the job with ordinary mortar mix, which has a similar consistency to resurfacer and is much cheaper. A 40-pound bag typically covers 15 to 90 square feet, and you usually apply two or sometimes three coats. How to Apply an Epoxy Coating to a Garage Floor, Building Your Own Home: a Step-by-Step Guide, Concrete Flooring for Bathrooms: Pros and Cons, Tips for a Better Concrete Garage Floor Slab, Inexpensive Options for Flooring in Basements. J ... Ive already got 2 coats of skim coat on. This highly flexible can be used to damp-proof existing block walls, as a scratch and brown or parge coat, or to build block walls without mortar joints – saving labor compared to traditional masonry construction. Concrete resurfacer comes as a dry mix in 40-pound bags or 50-pound pails. Integral color can be added to create a base coat of color for the acid stain (Image 2). How to Skim Coat Concrete Blocks. Thorough preparation is the key to long-lasting results when resurfacing concrete. Total basecoat shall be a nominal ¾ inch thickness for lath and ½ inch for direct application to masonry substrates. Roll on a layer of bonding agent. Expect to buy quite a number of bags if you are resurfacing a large slab. 1- 2mm. Introducing "One Thing": A New Video Series. The skim (finish) coat is responsible for smoothness. 5:55. It's a project that just about anyone can tackle, and it's a lot more affordable than replacing the concrete slab. Chris was not sold on the durability or strength. I have known people go down to an inch, but any less needs something like polymer emulsion or epoxy resin screeds for a decent job. This type of product will be clearly labeled as "concrete resurfacer" rather than "floor leveler." A smooth finish is obtained by applying a skim coat of finish plaster. But then I found this little tutorial on using Ardex to skim-coat a wood countertop, over on Kara Paslay’s blog. At $25 to $55 per 40-pound bag, or up to $70 for a 50-pound pail, resurfacing is not a cheap project, but it is less expensive (and much quicker) than tearing up an old slab and pouring a new one. The finish will be quite smooth, so you can add texture to the final coat by brushing it with a broom while it is still slightly wet. The first layer is Thin Finish and it should be 1/8 inch thick. Free pizza and other things that keep me up at night. Unlike other cement products, it is designed to be applied in very thin coats (no more than 1/2 inch thick), and its additives provide good adhesion to an existing slab. Concrete resurfacers are only available in one color—ordinary gray. Apply first coat directly to primed substrate and allow to dry completely before applying second coat. The Decorative Concrete Channel by SolCrete, LLC 5,081 views. New concrete looks new, and old concrete looks old. The process for skim coating concrete is much the same; however, the material used is not joint compound, but rather, a solution designed for use with concrete. Roll over image to see After Image FEATURES Easiest wall FIX EVER! Usual thickness is 20 mils +/-. Skim Coat is a smooth, sand-free, hydraulic cement-based material used under flooring for patching and skim coating on interior and exterior projects. 810 is a three-part urethane polymer concrete high-build coating. So if your layer doesn't cover the entire floor you'll need to deal with that by tooling at partial cure, or by skimming with another product such as a vinyl concrete patch. This is actually stronger than the slab itself, so properly applied, resurfacing layers can be very durable. Play some tunes or listen to a book on audio. Re: Homemade Self Leveling Skim Coat Our floors here are often 4 inch concrete with a 2-3 inch sharp sand/OPC 3/1 dryish mix screed to level. Apply two coats of StoColor Lotusan at 5 – 7 wet mils, per coat, by brush, roller, or appropriate spray equipment. If you are resurfacing a slab with expansion joints, don't cover over the joints with resurfacer. The crawl space is graded with limestone and then six mil visqueen is laid as a moisture barrier. Stains may seep through the resurfacing material unless they are removed prior to application. Jump to Latest Follow 1 - 3 of 3 Posts. Make sure that the current temperature is at least 50 degrees Fahrenheit, and that the temperature will stay above 40 degrees for at least the next 24 hours. Answer: This is the three inch thick concrete which is poured as the covering of the soil in the crawl space. It is designed as a thin film roll applied, concrete resurfacing classified, for concrete protection flooring product ranging from 8mils to 16mils thickness. 1.2kg / m 2 / mm thickness 20m 2 / 25kg bag at 3mm thickness… Just three mm of thickness, micro cement Micro topping allows you to renew existing surfaces on different bases (concrete, self-leveling, ceramic, wood…) without having to … - Duration: 15:06. The skim coat is applied to the backing coat at a thickness of 2-3 mm. 1.4kg / m 2 / mm thickness 10m 2 / 40kg bag at 3mm thickness. But they can be tinted with colorants made specifically for concrete products. Concrete overlays can range in thickness from 1/8-inch to two inches. Most jobs require a second, and sometimes a third coat of resurfacer. The concrete is poured over the visqueen thus holding the foundation walls from moving inward and holding the moisture out. Skim-coating or resurfacing concrete patios, walkways, driveways, walls and stairs not only renews their appearance, but it extends their lifespan by improving drainage and waterproofing. Also, work when the area is most shaded, or at least when the sun's glare is at a minimum. This preparation involves pressure-washing the slab, repairing significant damage using a quality concrete patch product, and removing any stains from oil, paint, or tree sap. Use on vertical walls for repairs from 1/8 to 2 inches (3 to 50 mm) or apply it in lifts to maximum 3 inch (76.2 mm) thickness. But when the problem is just superficial cracking, discoloring, or minor chipping or spalling, resurfacing is a very good option. roll on layer of bonding agent and smooth. skim coat thickness over cutback residue. There are lots of concrete mix products on the market—including mortars, repair patchers, fast-setting concrete mixes—and it can be hard to choose among them. How to skim coat concrete Microtoppings are easily applied with trowels, squeegees, brushes, or rollers, depending on the desired look. Unlike other cement products, it is designed to be applied in very thin coats (no more than 1/2 inch thick), and its additives provide good adhesion to an existing slab. Learn tips for creating your most beautiful (and bountiful) garden ever. And 10 months ago (back when I thought I was going to be totally awesome at DIY and the whole reno would take 3 months), I figured that I could handle making concrete countertops. If you plan to resurface only part of a larger slab, be aware that it is hard to match colors. Bag of vertical concrete mix from Flex-C-Ment. Product instructions generally advise that resurfacing is a viable option if the slab has not cracked all the way through and when damage is limited to cosmetic issues. We did not have said countertops. 2 - 4mm. Instead, cover the joints with duct tape to prevent the resurfacer from sticking to them. Approx. If it’s really humid or temperature is colder, it may take a little longer. Sakrete Surface Bonding Cement is a professional-grade, fiber-reinforced portland cement based coating for concrete block and masonry walls. ... with a bead of approximately 1/8 inch thick. Minimum recommended thickness for self-leveling concrete topping (skim coat) Ask Question Asked 3 years, 1 month ago. Repair and renew concrete surfaces by skim coating them rather than demolishing and starting anew. Sometimes a concrete slab is just too unstable or too badly damaged to make resurfacing possible. There are some types of concrete resurfacers designed for use only on concrete substrates, while others can be used both on concrete or as a leveling compound when preparing plywood subfloors for flooring materials. Concrete should be skim only, unless lath is used. This product is easily applied with flat to 1/8” v-notched rubber squeegees, brushes, Question: What is the skim coat in a crawl space foundation? Concrete resurfacer is a special cementitious product that blends ordinary Portland cement, fine sands, polymer modifiers, and other additives aimed at providing adhesion. The procedure implemented to skim-coat a … They can be applied in layers as thin as 20 mils (a mere 0.02 inch), or you can apply several coats to create a textured broomed or troweled finish. A number of tools and materials are available to do-it-yourselfers that, in most cases, make skim coating preferable to demolishing and replacing old, damaged concrete. Final thickness of StoColor Lotusan shall be minimum 2.5 dry mils, per coat. (6 mm) 4 ½ the code required thickness Coverage. CrownCrete U™ Skim Coat Product No. Apply the Concrete Mix. (Not liquid to dry.) The dry powder is mixed with water to form a slurry, which is then spread over the concrete slab using a long-handled squeegee. As the overlay gets thicker, you need to increase the size of the sand being used. Step 5b Spread and texture the concrete patch to match the surrounding concrete. Skim coating concrete entails applying two layers of finish. This can be hard to determine, but if the height of the slab is offset on adjoining sides of cracks, it is an indication that major heaving is occurring. Coat Thickness. Let dry at least 2 hours between coats. The process involves applying a … D. … Start with proper surface preparation and move on to creating a durable, attra… Smooth the concrete onto the mesh with the trowel until the entire counter top is covered. Approx. If you really want to make the surface look new again, it's best to plan on resurfacing all of it. All barriers to Micro-Top adhesion and penetration should be removed prior to the cementitious skim coat application. Micro Topping (Skim Coat) Micro topping Renovation of old concrete with colored concrete layers not exceeding 3 mm thick. "A Duck's Tale" - Concrete skim coating in Lakeworth, TX - Duration: 5:55. Finally, make sure there is no rain in the forecast for at least 8 hours after application. The concrete was kind of..... wavy. This process is a good way to prepare a cracked and uneven cement wall for painting or other finishing. Resurfacers are self-leveling, meaning that they don't need to be worked extensively to create a level surface. Mix the Thin Finish with your paint mixer (Image 1). Stir Concrete Patching Compound using a margin trowel or putty knife. Spray the driveway with a hose so the finish will form a strong bond with the concrete.Spread the Thin Finish with a squeegee and wait for it to dry. Trowel apply 2-3 coats – no more than 1/16” thick. 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