Want to permanently cover up surface imperfections in existing concrete? Or turn a plain-jane slab from drab to fab? With today’s decorative overlays, it’s easy to give almost any concrete surface, indoors or out, a complete face-lift and at a much lower cost than removal and replacement. The real challenge is choosing from among the many resurfacing products available and the diverse array of decorative finishes possible. There are multiple options available for achieving any look imaginable with a concrete overlay.
Although cement-based overlays have been around for decades, many of today’s systems blend polymer resins with cement, sand, and other additives to improve performance, wear resistance, and aesthetic qualities. Polymer-modified overlays can be applied in layers as thin as a credit card or up to several inches thick without delamination or failure. They adhere well to existing concrete and resist damage from salt, chemicals, UV exposure, freeze-thaw conditions, and abrasion.
It’s important to be aware that not all existing concrete can be resurfaced. The underlying base for an overlay must be sound. If your concrete is heaving, has severe cracks, is spalling due to damage from deicing salts and freeze-thaw cycles, or resting on unstable soil, resurfacing will not solve your problems. This is when total replacement will be your best option.
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