Grind and seal
Concrete grinding and sealing is a method of polishing concrete, we grind back the top layer of concrete to show as little or as much stone as the customer desires. (Some like to see a lot, and some like to see only a little, it is a personal preference).
Once the right level of stone exposure has been achieved with the concrete grinding we then use finer diamonds to remove visible scratching and get a flat surface ready for a coating. At this point the concrete can be dyed if you want to change the colour and/or it can be grouted if you want a much smoother more refined glass like surface. For a full stone exposure finish, we will always grout the floor, but for a minimum/random exposure you can choose if you want to add this step as it will cost more.
Lastly the floor is finished with a protective sealer. You can also choose different gloss levels, tints, contrasts, add pigments, slip reducing additives and there is a lot to offer with different solids content and also environment friendly coatings and sealers.
The advantages of choosing grind and seal concrete system are:
The initial installation costs are somewhat lower than other polished concrete options.
The nature of the surface means that less effort is required to keep the floor clean.
There are many different types of sealers for many different types of jobs and can get very confusing for which is the right sealer for the right job. Knowing which sealer is right for your job is crucial and should be applied by a trained qualified professional.
Here at Concrete Floor Restorations we are always looking for the best sealers to use and to keep a high quality standard. On site our qualified applicator will be there every step of the way throughout the job giving advice, experience and expertise on the job at hand.
Impregnating sealers are most commonly referred to as penetrating sealer. Impregnating sealers are designed to penetrate into substrate leaving no topical coat and mainly used in honing external areas and mechanically polished concrete.
They are invisible to the eye and when applied and must not be confused with film forming concrete sealers. Impregnating / penetrating sealers come in two forms, solvent and water bases as their resin carrier. Up until recently, water based impregnators were mainly used for external concrete and masonry material. High quality solvent based impregnate sealer offers water, oil and food spill stain resistance.
Topical sealers sit on top of substrate surface, used interior and exterior for commercial and
residential. They can provide visual enhancement as well as topical protection from stains and chemicals. They require a dry, clean surface during application to gain adhesion. Topical sealers may alter the coefficient of friction which can make substrates slick when wet – a condition that can be remedied by adding anti-skid materials. Life span is generally 1-5 years, although high-end epoxy/urethane systems can last significantly longer.
Penetrating sealers (includes silanes, siloxanes, silicates,
- Penetrate and react chemically within the capillaries of the concrete to shield against moisture penetration and deicing chemicals.
- Exterior concrete surfaces subject to corrosion and freeze-thaw damage Where a natural, matte finish is desired
- Provide invisible protection without changing the surface appearance or leaving a sheen.
- Provide excellent protection against outdoor exposure conditions. Most products are also breathable, allowing moisture vapor to escape.
Available in both solvent- and water-based formulations, acrylic sealers are ideal for projects where easy application and economy are important. They can be used on both interior and exterior surfaces to form a thin, protective film that provides good protection against water and chloride intrusion while permitting moisture in the slab to escape.
- Form a thin protective film on the concrete surface. Available in both solvent- and water- based formulations.
- Both exterior and interior concrete On projects where easy application and economy is important To enhance the beauty of coloured, stamped or exposed-aggregate concrete on fast- track projects, since acrylics often dry to the touch within an hour.
- Available in a range of sheen levels. Solvent- based acrylics generally enhance color better than water- based products.
- Provide good protection against water and chloride intrusion, but usually wear faster than polyurethanes and epoxies.Solvent-based acrylics generally perform better than water-based products for outdoor use. On indoor surfaces, softer acrylic sealers usually require regular maintenance with several coats of a sacrificial floor finish, or wax, to prevent wear and black heel marks.
Form a high-build protective film on the concrete surface. Available in both solvent- and water-based formulations
Form a high-build protective film on the concrete surface. Most are two-component products mixed prior to application.