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Floor Grinders

Using a Mohs Hardness Kit on Concrete

Before you begin grinding and polishing concrete, it’s necessary to understand the make up and consistency of the substrate. Knowing the hardness of the slab will allow you to make smart decisions and effectively plan the project, including: Whether you should use hard or soft bond tooling; What grit to use to get the polish […]

Does Grinder Size Matter to the Quality of the Polish?

If you want a smooth, near flawless polish on a concrete slab there are two key components to making this happen. First, you need to have the experience and knowledge to know what steps to take, how to care for the concrete, and how to operate the equipment properly. Second, you need to use the […]

Why Are Prep/Master Floor Grinders So Expensive?

“Why are these Prep/Master floor grinders so expensive?” We get asked that a lot here at Buy Manufacturers Direct, and it’s understandable if you’ve just started looking for a floor grinding machine. After all, what sets Prep/Master apart from the other brands? Aren’t they basically all the same? Not quite. To help you understand what […]

Planetary Grinders vs Rotary Grinders

When you’re shopping for a concrete floor grinder, there are several features you need to consider – electric or propane grinders, walk behind or ride-on grinders, etc. However, you also need to consider how the discs move to get the job done – they can either be “planetary grinders” or “rotary grinders.” To help you […]

How to Fix Glazed Diamonds on a Concrete Grinder

Using diamonds on your concrete grinder adds the grit you need to remove thick coatings like mastic or epoxy, and create a rough profile. However, if you’re grinding dry on hard concrete, the diamonds can glaze over, dulling their rough abrasive ability, preventing you from getting the results you need, and leading to longer hours […]

Disassembling and Reassembling the Prep/Master Jr. Floor Grinder

The Prep/Master line of floor grinders is one of the leading brands of grinders on the market, known for their power and durability. However, there will be times when you may have to perform routine maintenance or simple repairs. To help you save time and prevent damage, we’re walking you through the steps to take […]