No. Because it is an acrylic, it remains flexible, yet extremely durable. Freeze/thaw cycles cause concrete to expand and contract. Because the Spray-Tek™ system is essentially part of the concrete surface, it moves with the concrete and not against it, as do other products like tile, slate, pavers, asphalt or concrete patches.
We cannot eliminate the heaving of concrete. However, after application, the surface will be more much less porous. Large cracks that previously allowed greater amounts of water penetration can be reduced. Consequently, less water is retained and the effects of heaving caused by freeze cycles should be noticeably reduced over a period of time.
Total thickness is approximately 1/8 - 3/32". We are more concerned about the acrylic penetrating the concrete than building up the surface. Actually, the thinner it is, the better flexural properties it has, which is very important to allow for expansion and contraction of concrete during freeze/thaw cycles. Skim coats can be applied thicker for holes and spalling (chipping, flaking). Larger and thicker areas are filled or rebuilt using high-density acrylic mortar called Fast-Patch™.
First, the surface is etched with muriatic acid or EZ Prep and pressure washed to clean off dirt, remove loose aggregate, and open the concrete pores. Next, a very thin "skim" coat of the acrylic cement mix is applied by trowel. This is to provide maximum absorption into the pores of the concrete. Patterns are laid out using reinforced tape when the skim coat is dry. A second coat is applied using a drywall hopper in a random spray pattern, or troweled for multi-hued color variations. When this coat is dry, the tape is pulled, revealing the patterns, and two to three coats of solvent based sealer is applied using a roller. This sealer coat penetrates and softens the skim and spray coats and bonds all layers to the concrete. When dry, these two layers become a permanent part of the existing concrete, providing outstanding weather and stain resistant properties.
Acrylic resurfacing has been in use since the early 1970’s. Polymer was added in the 1980’s to provide superior bonding properties, and increase strength, durability and longevity.
Concrete Coatings Incorporated Spray-Tek™ Acrylic System is a combination of a modified acrylic resin and specially formulated Portland cements. Colorants are added as needed. We combine the strength of cements with the durability and bonding power of acrylics. A penetrating sealer is applied to provide superb durability, weather, UV resistance, and to ensure a long product life.
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