5-extra Round Grinding Disc

5-extra round grinding disc is oxalic acid pressed abrasives stone, made with selected materials and exclusive oxalic acid bond, to get high mirror polishing at low polishing cost.

5-extra Round Grinding Disc (often referred to as oxalic acid polishing block) is the final "finishing touch" process of stone grinding, specifically used to stimulate the final high glossiness on the surface of marble and other stone materials.

It has a clear relationship with the Magnesite grinding disc and resin diamond grinding disc in terms of succession and division of labor

The black buff and white buff are widely in use for dark color and light color granite respectively. Red buff is sometimes required for polishing red or brown granite and it is also available upon request.

The key to achieving the final highlight effect of 5-extra Round Grinding Disc lies in their unique dual action mechanism:

Chemical reaction (core): Oxalic acid (COOH) ₂ reacts chemically with calcium carbonate, the main component of marble, to form a thin and transparent crystalline film of calcium oxalate. This layer of film fills the micrometer sized pores on the surface of the stone, forming a smooth "glaze" that greatly enhances its glossiness.

Physical effect (auxiliary): The polishing block also contains extremely fine abrasives (such as alumina, white corundum, etc.). Under high-speed grinding, the surface is subjected to a final micron level "refinement" to remove the fine marks left by the previous processes

* Accept OEM/ODM, accept customization;

* Packaging can be customized;

* Contact customer service for details;

* Other specifications can also be customized;

(Practice has proven that using our company's stone abrasive tools can achieve higher stone brightness and lower manufacturing costs,)

Scope of application: Oxalic acid is mainly suitable for carbonate stone materials, such as marble, limestone, terrazzo, etc. For silicate stones such as granite, other specialized polishing materials such as special polishing blocks need to be used.

Potential risk: Improper operation (such as uneven ground or poor quality polishing blocks) may leave long strip-shaped flower marks or imprints on the surface of the stone. Therefore, this step requires certain skills and experience from the operator.

Overall, the oxalic acid circular grinding disc is the "stepping stone" that achieves a high gloss mirror effect on stone. Through the synergistic effect of chemical joint filling and physical polishing, it transforms stone from "delicate" to "bright". When using, the core is to master the degree of "wet dry alternation". Choosing the appropriate 5-extra Round Grinding Disc is crucial for improving work efficiency. Our company has many years of experience in manufacturing and researching stone slab grinding tools, and has supplied stone abrasive tools to multiple stone factories throughout the year, accumulating rich experience. If you have the idea of improving work efficiency and reducing costs, please feel free to contact us. We provide you with high-quality stone grinding and polishing solutions for free.