Concrete Overlay

Decorative concrete overlays give new life to structurally sound, worn existing concrete surfaces. Curbside Lawns has engineered a number of concrete overlay systems to provide the precise blend to transform blemished concrete into a fresh canvas to achieve any imagined decorative concrete look. Whether you simply desire a consistent uniform color, a contemporary concrete stain appearance or are looking to obtain a natural stone texture or pattern, Curbside Lawns offers a complete system with fully compatible products and tools. A concrete seal is recommended to protect the decorative surface.
Decorative concrete overlays are comprised of many different chemical additives but generally use basic elements like, cement, aggregate (usually in the form of sand, silica, or calcium carbonate) and a polymer.
The polymer is the secret. Polymers can come in dry or liquid form. Dry polymers are often blended and already in the package when purchased, whereas liquid polymers must be added as an ingredient at the time of blending or mixing on site. Polymers are simply an acrylic type glue that helps these thin resurfacing systems bond to their substrate, giving them added strength, flexibility and generally improving their performance.
Additional chemical additives (sometimes as many as 12-15) are added to these thin resurfacing systems to help control the material and make it do what it is supposed to, including; leveling, quick drying, anti-foaming, slow drying(set retarder), etc.
By having access to numerous formulations, color options and finish techniques, a skilled professional can mold, color, texturize blend these elements to create hundreds of outcomes.
With many quality brands out there, there are still the standard systems that comprise the basis of most systems.

These are the basic types of decorative concrete overlays & resurfacing systems.

Skim coats:

Also referred to as: Squeegee coat, scratch coat, broom coat, micro topping.
All are similar in that they are designed to resurface using a very thin layer of cement. These skim coats are capable of resurfacing and covering floors, walls and accessories with a thin layer of polymer modified cement that can go down to 1/16th of an inch and usually no more than 1/8th inch.They are designed to resurface and add a new and refreshing canvas to the substrate they are applied to. A micro topping is also an ideal way for the addition of integral or topical colorations. Micro-toppings cover dull, drab, or damaged concrete surfaces that are otherwise poor candidates for the application of concrete stains or coloration or are used if a required color or texture cannot be achieved with a standard concrete substrate. They are often used on an overall smooth or level surface requiring only minor level adjustments or repairs due to their thin application.

Spray Toppings

Also referred to as: spray deck, splatter coat, spray-crete, spray & knockdown finish. Spray toppings are in the same family as skim coats or micro-toppings and often are the exact same product with a variation of their application. Following the same rules and application thickness as Skim coats. Spray toppings are mixed with water or liquid polymer and then filled into a hopper gun, the material is then shot out or sprayed onto the surface requiring decorating or covering. The material is left in small splatter points on the surface or is often 'knocked down' with a trowel or finishing tool to flatten it and spread it slightly. This finish is often found in exterior decks, pool surrounds, driveways and walkways.

Stamp Overlays:

Also referred to as: Stamped, imprinted or textured overlays. These systems are designed to resurface using a thin layer of cement. Stamp overlay systems are capable of resurfacing and covering floors, walls and accessories with a thin layer of polymer modified cement usually averaging between 1/4" -1/2" inch thick. The thickness is determined by the stamp or imprinting pattern that will be used.Stamp Overlays are designed to set-up or dry slowly to allow the craftsman the time necessary to "stamp or imprint" a pattern in to the setting topping system.
Hundreds of patters are available and most often resemble rock, tile slate and other natural surfaces.

Self-leveling Overlays:

Also referred to as: Semi self level, leveling overlays, liquid-tile, Etc. Self-leveling overlays are one of the newest technologies available in the decorative concrete market. Often comprised of the most number of chemical elements these systems are truly engineered products. Self-leveling overlays as the name implies are designed to level and smooth out a damaged or out of level floor. They are designed to resurface and add a new and refreshing canvas to the substrate they are applied to. To allow for the product to properly level they must be applied at a minimum thickness of about 1/4"inch and can often fill up to 2"inches in a single application. Self-leveling overlays can be integrally, or topically colored, or a combination of both. They cover dull, drab, or damaged concrete surfaces that are otherwise poor candidates for the application of concrete stains or coloration. They are often used on a damaged, pitted or out of level surface that requires a smooth level finish. Because of the advanced chemistry found in many self leveling overlayments many were designed to dry in as little as 3-4 hours and are an ideal choice for quick turnaround projects, requiring traffic on the surface soon after installation.