Sealers for Concrete Counter tops. A two-part series covering forms, mixes, tools and finishes. Part Two: Precast Countertops by Susan Brimo-Cox
Concrete countertops need protection from everyday abuses. The acids in vinegar and lemon juice can etch the surface, and the strong colors in tea, red wine and mustard can cause stains. While sealers are not a total guarantee, they can go a long way in ensuring a concrete countertop retains its “like new” appearance for a good long while.
A wide range of materials can be used to seal concrete countertops. Each has its own performance characteristics and maintenance requirements. Methods of application may be an important consideration. In the kitchen, a prime issue is whether a sealer is food-safe.
If you are new at creating concrete countertops, it is wise to consult with an experienced countertop contractor to learn which sealers work best for specific countertop applications. Often, you can also acquire appropriate knowledge when you take in-depth concrete countertop training. For the sake of our brief discussion, the experts at the Concrete Countertop Institute divide concrete countertop sealers into two main categories: penetrating sealers and film-building sealers. The following is an overview: