To polish a concrete floor, use a concrete floor grinder to remove fine particles. Choose the best size grinder for the job and consider buying or leasing. Look for dust collection systems and check if the machine is suitable for wet or dry grinding.
To bring a concrete floor to a high polish, concrete floor grinders should be used to remove the fine particles of the concrete. Choosing the best concrete floor sander starts with determining the size of the job or jobs you will be doing, as well as how often. These machines can be quite expensive, so you’ll need to decide whether it’s worth buying new, buying used, or leasing. If you’ll be doing just one project, it’s best to rent, but if you own a business or will be working frequently, consider buying.
The size of the job or jobs you have to do will determine which size of concrete floor grinders will be best for you. Exceptionally large floors, such as garages or basements, will require the use of a much larger unit, while small slabs may require a small unit or even an edging unit. The edging units are designed to fit into tighter spaces and angles, making it a suitable machine for getting into spaces that a large grinder can’t reach. You may need to rent or purchase more than one type of grinder to meet your needs.
The smallest type of concrete floor sander is portable and can be used for other types of concrete projects as well. Portable angle grinders can be equipped with the appropriate abrasive discs for grinding concrete; these little power tools are great for getting into tight corners and other tight spots that a larger unit can’t reach.
Look for concrete floor sanders that have dust collection systems. When concrete is dry ground, a significant amount of dust will be kicked up and it will contain silica. Silica is dangerous to breathe in and can damage your lungs, so it’s important to collect as much of the dust before it enters the air. A dust collection system on the unit will help prevent excess dust from accumulating, although you will still need to wear a respiratory mask and eye protection when using concrete floor grinders that are dry grinding.
Concrete can also be wet ground, which helps break down some of the dust created by the grinding process. If you intend to smooth the surface of the concrete when it’s wet, make sure the machine you choose is intended for wet sanding. Most manufacturers will clearly state whether the machine is suitable for dry grinding, wet grinding, or both.
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