Seal Concrete

The Right Way to Seal Concrete

If you want to add a sealer to your concrete sealing floors, you can use one of many methods. One of the most common methods is mechanical abrasion. However, mechanical abrasion can cause damage to the concrete, and this should be avoided if possible. A sealer absorbs into the concrete without building up a film. Therefore, the concrete must be properly cleaned before application. Also, it’s important to choose a material that’s compatible with the sealer.



First, remove the old sealer. You can do this mechanically or chemically. Mechanically removing the sealer destroys the original surface, exposing the aggregate underneath. The downside is that this method is messy and takes a long time. In addition, it can expose you to fumes and the vapors from methylene chloride, which can damage your skin and creep into your clothing. In addition to removing the old sealer, mechanical removal is also expensive.


With safety goggles

Using goggles for a construction project can provide you with the protection you need while working around chemicals or other hazards. While safety glasses will protect your eyes from larger particles, safety goggles provide better protection from fine particles and debris. Indirect ventilation safety goggles feature angled vents that keep particles from directly touching the inside of the goggles. However, these are not recommended for dust, liquid, or extremely fine particles.

The best safety goggles to wear for a concrete job are those designed to seal the area around the eyes. They have a head strap that keeps them in place. They also shield your eyes from dangerous chemicals, dust, and flying debris. If you are working near a concrete slab, make sure you wear a goggle that is rated for silica dust. You’ll want to be as safe as possible, but you can’t afford to go without one.


With solvent-based sealers

There are two types of concrete sealers: solvent-based and water-based. Both types are effective decorative topcoats that protect and enhance concrete, while offering stain and chemical resistance. Decorative concrete sealers add gloss and long-term color enhancement by coating the concrete with a polymer that is left on the surface after application. The glossy, matte, or textured finish of sealed concrete is often considered desirable for aesthetic purposes.

A water-based sealer will appear milky on wet weather, but will usually dry clear after several days. It’s also safer for the environment and your employees, and you can apply it over an existing solvent-based sealer. It won’t damage acid-stained concrete, and you can clean it up with a hose. And, since it’s safe to use, it won’t make the concrete appear cracked or damaged.


Types of sealers

When applied to a concrete surface, the right kind of sealer can make all the difference in the appearance and performance. Concrete sealers react chemically in the capillaries of the concrete, protecting it from deicing chemicals and water penetration. Often used on exterior concrete surfaces, they shield the concrete from damage caused by corrosion and freeze-thaw cycles. Unlike polyurethanes, these products don’t leave a sheen or other visible signs of the application process. Regardless of the type of concrete surface you’re dealing with, there are a few types of concrete sealers you can choose from