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How to Choose and Use the Right Diamond Tools?

How to Choose and Use the Right Diamond Tools?
Oct 15 , 2021

Diamond tools are often used in floor preparation, restoration and maintenance. Under normal circumstances, diamond tools can be divided into metal bond diamond grinding shoe, flexible dry polishing pad, floor polishing pucks, etc. According to different floor conditions, it is necessary to select suitable grinding discs for processing. Several important factors that affect the selection of grinding discs are as follows.


  • The flatness of the floor

Manually trowel leveled floor or old floor that is loose and severely damaged needs to be leveled or remove the loose surface layer. A high-power grinder is necessary for the job. Choose the concrete diamond grinding discs that has strong grinding power and are suitable for leveling. The flatness of self-leveling concrete floor or the floor mechanically leveled by the trowel is better. Only using diamond resin pads can make a beautiful polished concrete floor and also save more grinding tools loss.


  • The hardness of the floor

The concrete used in the construction of the concrete floor is represented by a grade, which is what we usually called C20, C25, C30, etc. Under normal circumstances, the higher the number, the better the strength and hardness of the concrete. The hardness of the concrete floor is usually expressed by Mohs hardness. The hardness of the concrete floor is usually between 3-5. On the construction site, we can use some substitutes instead of the Mohs hardness tester to understand the hardness of the floor. The hardness of the dents and the scratches that can be drawn with iron nails and keys is less than 5, otherwise The hardness is greater than 5.


  • The weight and speed of the grinder

Floor grinding machines are usually divided into small, medium and large types. Generally speaking, the larger the machine, the greater the power, and the higher the rate. But in actual use, it is not that the larger the machine the better. Although the grinding rate of an oversized and overweight grinder is very high, it will often lead to excessive grinding during use, which increases the construction cost. Experienced workers will adjust the machine speed, moving speed, number of grinding discs and machine counterweight according to the machine to reduce the construction cost and increase the construction rate.


  • Type and bond of the diamond tool

The commonly used abrasives for floor construction are PCD grinding tools, metal bond grinding discs and resin bond grinding pads. PCD grinding tools are used to remove thick coatings on the floor surface. Metal bond grinding discs are used for floor surface preparation and rough grinding. Resin bond grinding pads are used for coarse grinding, fine grinding and polishing of the surface.


PCD grinding tools metal bond grinding discs resin bond grinding pads


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