Spray Texture System
Don’t tear out your old unsightly concrete; resurface it with the Concrete Solutions® Spray Texture System.
The Spray Texture System, also known as trowel knockdown, is a spray applied texture coat of polymer concrete designed to restore old, stained concrete and provide a decorative, slip-resistant finish over existing concrete surfaces.
Unlike the Broom Finish System, the Spray Texture system is applied using a hopper gun and then troweled to create a knockdown texture finish. It can be color coated to provide a durable, fade resistant finish and will revitalize deteriorated concrete in residential and commercial areas such as pool decks, driveways, walkways, patios and more. Spray Texture can also be applied on vertical surfaces such as steps, curbs and seating walls.
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SYSTEM DATA INFO
Spray Texture System Instructions
Spray Texture System Flyer
Texture-Top Spec Sheet
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Knock Down Finish for Pool Decks
A spray knockdown finish is an ideal solution for resurfacing a pool deck that is old and damaged. When it comes to real estate, a pool area is almost always a common sight in Nashville, Tennessee. It is also common for these to have concrete pool decks. Some top it off with tile while some leave it as it is. While both are durable, both can get very slippery especially when wet.
This is what a spray knockdown texture aims to resolve. It features a spray texture that dramatically enhances the grip of shoes and bare feet on the pool deck. It is highly recommended for updating and repairing outdoor concrete surfaces, including driveways, front entryways, walkways, and patios. Now, that is versatility at a friendly cost.Contact us for a free quote
Why Choose a KnockDown Finish?
There are many different pool deck texture coatings available. Each one has their pros and cons. So, why should this knock-down finish be an ideal option?
- Slip-resistant - The trowel finish creates a texture that improves traction. Even wet bare feet would be able to walk comfortably on the surface without slipping or falling.
- Appealing - Who wouldn’t want a gorgeous pool deck area? A knockdown texture on concrete that has been sprayed and knocked down is similar to stucco. The difference is that it features more subtle grooves and dips. It also comes in a wide range of colors.
- Cool Surface - Concrete that has been under the sun for hours is difficult to walk on, especially with bare feet. This pool deck knock down finish has the capability to keep the surface 30% cooler than most materials.
- Affordable - Updating or repairing a pool deck would cost a fortune if it involves slab removal, concrete replacement, or high-end topping materials like tile, stone, or pavers. The acrylic concrete coating, on the other hand, requires just a thin layer, a few installers, and the existing concrete pool deck.
- Durable - Although only a thin layer is needed, the material is durable enough to stay in place and protect the slab underneath from external damage.
- Easy to Clean - Not everyone has the time to clean pool decks meticulously. A knock-down finish requires minimal cleaning and maintenance, perfect for busy homeowners.
Ready to enjoy a spray knockdown finish?
Call 615-822-7134 for more info.
When it comes to spray-down concrete resurfacing, you can trust Sundek of Nashville. We have been servicing both residential and commercial locations in the Nashville area since 1984. We specialize in resurfacing concrete pool decks with a spray knockdown finish and we take pride in our work.
Have questions? Need a quote? Call or email us today. Let’s talk about your dream pool deck and the range of options that we offer.
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Versatile and easy to apply, spray-down concrete systems offer a wide array of finish options. Usually they are sprayed evenly onto concrete with an air-powered hopper gun, but they can also be applied as a splatter coat to create a textured, slip-resistant surface or "knocked down" with a trowel to create a smoother finish. They are very similar to microtoppings in that they are thin, but differ in that they usually contain more sand and provide a rougher, grittier finish.
These systems are often used for concrete pool decks and patios to give them a decorative slip-resistant finish. They also are a good option for high-traffic interior floors because of their durability, low cost, ease of application, and range of patterns and colors. A popular decorative technique is to use paper or adhesive stencils to produce designs such as borders and medallions, tile patterns, and embossed or inlaid motifs.
Buy Products:Exterior Resurfacing
How to spray concrete texture
Spray-down toppings are usually applied by a hopper gun under pressure. The type of finish (knock-down, orange peel or smooth) depends on the spray pattern and method of spray application. If stencils are being used, a base coat of material is applied and then the stencils are adhered to the floor, followed by the application of a second color coat. Finally, a sealer is applied to protect the surface and enhance the color.
Options to Cover Concrete Floor Surfaces
A New Concrete Resurfacing Option
These days, it seems days that the construction industry is getting the upper hand on creativity and art. Whatever the project, the industry seems to come up with an idea that beautifies the result. Surprisingly, that is even true of concrete. Colorized and textured concrete are becoming common and provide a beautiful and innovate touch to floors. Considered among the best techniques a comparison between Knockdown vs. Handtrowel highlights the artistic approaches used to make concrete sparkle like eye candy.
Knockdown is pretty much what it says. The contractor or mason knocks down high points appearing on the flooring’s face. That may sound strange after pouring, but a spraying or direct application of additional concrete (or a compound) is added — usually within 28 days. As the cement cures, the surface and the sprayed or applied concrete bond, creating a unifying single surface. Before the curing process is complete, the high points created by the sprayed or applied concrete/compound, are knocked down and the desired texture appears.
The appearance is much like knockdown drywall. The flat version, or a California knockdown, is the most common texture design applied to cement flooring.
The attributes of this flooring technique are multiple. Beyond just providing various, appealing colors with a textured surface, there are several advantages to this technique. The flooring creates more friction-reducing incidents of slippage. This is important around pools and other like areas. The surface remains cooler and during summer, especially in arid regions, the impact of this feature is compelling.
With the troweled surface, there is clearly a handcrafted result, giving it an artisan’s touch. Both techniques try to provide a beautiful but functional surface. In the case of a hand-troweled surface, a very important aspect is how it challenges densification. That is pushing air away from the surface to create a harder surface. Passing the steel trowel over the surface several times creates a burnish and further passes of the steel trowel can give the surface a mirror-like appearance. This latter approach does not serve well outdoors because of the slippage factor, despite its appeal.
The ultimate look can appear plain and flat, per above, but nowadays texturing is so popular that the added touch of the hand-trowel to create a unique surface each time makes it an appealing surface for both indoor and outdoor flooring.
Concrete has come into widespread use as a result of the artistic applications so easily applied to its surface. Once consigned to garage floors, sidewalks, and large public spaces, the material has found renewed interest by the public within the walls of their homes and surrounding areas. Color and texture have proven a prime impetus driving its use and popularity to its highest levels.
With that comes a responsibility to preserve these surfaces, providing for the continued beauty, utility, and longevity such surfaces provide. Without the help of maintenance and waterproofing techniques, however, like all materials cement surfaces can experience failure. Mostly, that failure comes through the water. As in the case of the knockdown surface, it many little decorative pits and channels hold water. If allowed to sit unabated and evaporated, overtime the cement’s surface will weaken. An extra precaution demands waterproofing in this particular case.
Even in the troweled flooring, the same problem exists. It can come from water swelling up from underground, changes in the weather from warm to freezing, etc. It represents the ongoing battle and early treatment by waterproofing products with an earned reputation is the only answer. Prolonging your beautiful flooring surfaces serves to protect what always proves to be a good investment.
Contact us, Pli-Dek Systems, to learn more about the various functional and beautiful surfaces that concrete has to offer in addition to a concrete waterproofing system.
Tags: artistic approaches, avoid problems, better results, color and texture, deck waterproofing, durability, extended life, floor surface, fyi, handcrafted result, handtrowel, home appeal, How To, knockdown, precautions, quality products, texture design, Tips and Tricks, waterproof deck coating, Waterproofing
Concrete knock finish down
Applying a "knock-down" finish to a concrete slab
It can be done. You could use a variety of better products, but the easiest for a DIYer to obtain will come from Lowes, HD, etc. Here are the steps:
1) THOROUGHLY clean the slab of all sealer, paint, dirt, oil, etc. If you used a curing compound on the slab, it will need to be completely stripped.
2) Mask off any walls, doorframes, etc.
3) Mix 2 parts play sand or white sand to 1 part portland cement. Dry mix it first in a pail. Then add acrylic concrete fortifier or concrete bonding agent. Quikrete sells both at the stores I mentioned. You can use a little water too to get it to a consistency like a very heavy paint or pancake batter.
4) get the floor damp but with no standing water, and use a whitewash brush to drip or splatter the mixture on the slab. Either immediately or waiting a minute or two, use a steel concrete trowel (not a float or a bricklayers triangular trowel) to skip over the surface. It "knocks down" the high spots or blobs and flattens them down closer to the concrete surface. You don't want to completely flatten or eliminate them, just knock 'em down and spread them out a little. The amount will depend on how it looks to you.
5) allow it to dry for a day or so before walking on it.
Be aware that the splatter coat will almost certainly be a different color than your existing concrete. Usually it is darker than the existing. If you don't like the multicolored look, you'll have to paint or stain the floor afterwards. Good luck.
Looking for a cool idea for the pool deck or backyard patio? A knockdown finishes for concrete will fit the bill, say experienced professionals.
A knockdown finish on horizontal concrete is not dissimilar to the knockdown finishes common on drywall. It involves a cementitious material that is dispensed by hopper gun, applied with spatter brush, or in some cases screeded, troweled and textured with rollers or stamping tools. The textured material is “knocked down” with a trowel shortly after application. This is done when the material is partially but not totally dry, to level the high points. Doing this produces a more uniform, less-rough surface that is comfortable to the bare foot while also providing resistance to slip.
Using the knockdown method to apply an overlay gives visual appeal to otherwise gray or aged concrete by adding color and texture.
What’s more, knockdown veterans say the finish makes the surface cooler on hot summer days.
“By using a texture that imparts peaks and valleys, you can lessen the surface area that the bare foot comes in contact with,” said Todd Fisher, of family-owned Unique Concrete NJ, located in West Milford, N.J. “The valleys then act as a cooler zone filled with air, leaving only the peaks for the foot to come in contact with.”
Though knockdown finishes are relatively uncomplicated in design and installation, expert practitioners of the knockdown art emphasize the importance of proper practices and techniques to ensure the finish meets target durability and performance parameters.
“The most important things are preparation and accurate measuring of the product,” says Dick Krach, CEO of Sundek of Washington, a decorative concrete contractor based in Chantilly, Va.
Important preparation procedures include inspection to determine if the surface is clean and free of existing coatings or sealers. Consider whether a hard-troweled surface should be ground or scarified to open up the concrete to ensure the overlay will penetrate and adhere. Also, you should maske adjacent areas for protection from overspray.
Krach said a typical system installed by Sundek includes a polymeric coating-type material. You apply this system as a bonding agent or primer, a base coat of the cementitious product — often a polymer-modified material, and a finish coat using the same cementitious material but applied with a hopper gun that dispenses globules over most, but not all, of the surface. You can apply protective sealers, based on acrylic, polyurethane or other chemistries to the finished knockdown surface.
Supplying cementitious material
The cementitious mixture arrives as a dry material in bags and mixed with water on-site. The mixture is a combination of portland cement, sand, other specialized additives, and a polymer that acts as a binding agent — the glue, says Krach.
Not all such mixtures contain the polymer component. Fisher, of Unique Concrete, says his company applies cementitious materials that are not polymer-modified. Instead, the mix contains a colloidal silica admixture that he says reduces the potential for efflorescence. It also enhances strength and density and decreases concrete shrinkage. On the job site, the company adds the liquid colloidal silica to the mix water. They then complete the cementitious mixture with cement, sand, integral color, and PVA (polyvinyl acetate) fiber for added strength and shrinkage reduction.
Tips and techniques
Unique Concrete of NJ takes a different tack with its knockdown finishes than many contractors, Fisher says, as it does not employ a hopper gun to dispense the finish material. Rather, Unique Concrete’s typical approach is to pour, screed and trowel the overlay in a conventional way. They then use specially designed rollers to create texture ridges that you can knock down with the troweling methods.
“To give variation and uniqueness you can knock it down in different ways,” Fisher says.
The creation of texture using the rollers does not vary greatly on Unique Concrete jobs. “What does change is the timing of when you knock down the finish. You can adjust that. For example, doing it sooner when the mixture is softer will make the surface more suited for a project where barefoot traffic will be common, while still providing traction due to having peaks and valleys.”
By contrast, for a project on a driveway, knockdown troweling is done later, when the placed mixture is more set up. Thus, removing less material from areas of raised texture leaves behind more relief and more grip.
Also, you can use different troweling methods to give variety to the texture, Fisher says. These techniques include moving the trowel in different directions rather than just left to right. You can also use an S-type curving motion to produce “movement.” Doing this creates a variegated texture rather than a consistent or repetitive knockdown.
Knockdown does not inherently give the concrete a widely variegated texture. “We try to move the trowel in different directions to create more variation,” Fisher says.
Tom Ralston is the owner of Tom Ralston Concrete, in Santa Cruz, Calif. He calls knockdown finishes a “bulletproof” decorative option for pool decks. He implies that is relatively difficult to get wrong if you follow a few basic guidelines.
- Make sure the mixing ratios are accurate, as too much water will weaken the mix design.
- Move quickly when applying the product, to ensure consistency.
- Don’t apply if the surface is too hot or too cold. Air temperatures between 60 F and 70 F are optimal.
- Ensure all tools are in good working order before starting. This includes clean mixing buckets, the mixing drill apparatus, and the hopper gun, hose, compressor and trowels. “If all is not in order, issues will arise,” he says.
Ralston says slip resistance is a key selling point for knockdown finishes, in particular for commercial applications. The ability to renew aged or plain gray concrete with color and visual appeal are also important marketing attributes.
Adds Sundek’s Krach: “That’s really what we’re selling. We say we beautify ugly concrete.”
Questions from Readers
I have a knockdown patio that looks like the top photo with the dog laying on it. It has become stained from potted plants. So, I would like a recommendation for a product to coat our patio so it looks like that patio. I pressure washed the patio yesterday and it is clean. However, process did not remove the stains.
Answer from Concrete Decor
Glad to hear that your patio has already been power washed and is clean of any dirt, grease etc.
Here is the product we would recommend for recoating your knock-down finish on the patio. The product should cover those stains from planters in one-coat. However, if you need a second coat, apply more after the first coat has dried. This product is very easy to work with and is offered in solvent- or water-based formulations. There are also numerous colors to choose from.
SureCrete ColorTec Pigmented Sealer SB
SureCrete ColorTec Pigmented Sealer WB
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