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Clear spherical Glass Bead Grade 7 (AB Grade), 180-300 microns, used for satin metal finishing and precision cleaning.
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Glass bead Abrasive (GB-07/ AB Grade)

Original price was: ₹100.00.Current price is: ₹70.00.

What is the micron size of Glass Bead Grade 7 (AB)?

Glass Bead Grade 7, also known as AB Grade, features a particle size range of 180 to 300 microns (50–80 US Mesh). This mid-range size is ideal for balancing cleaning speed with a high-quality surface brightness on metal parts.

What are the best applications for 180–300 micron glass beads?

The 180–300 micron range is best for medical instrument finishing, aerospace parts cleaning, and mold maintenance. It effectively removes heat scale and light carbon deposits while providing a “satin” or matte-bright finish on stainless steel and aluminum.

Will Grade 7 glass beads damage my parts?

No, Grade 7 glass beads are non-destructive abrasives. Because they are spherical and chemically inert, they remove surface contaminants through impact rather than cutting. This ensures the original dimensions of your precision-engineered parts remain unchanged.

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1. Product Description 

High-Precision Glass Bead Grade 7 (AB Grade) | 180–300 Microns

Glass Bead Grade 7 (AB Grade) is a premium spherical abrasive with a micron range of 180–300 $\mu m$. It is specifically engineered for precision surface finishing, light deburring, and creating a uniform, glare-free satin finish on non-ferrous metals like aluminum and stainless steel.

Unlike aggressive abrasives, Grade 7 beads clean and peen surfaces without causing dimensional changes to the workpiece. This makes them the industry standard for high-tolerance sectors including aerospace components, medical surgical instruments, and automotive engine restoration.

Why Choose Coreblast Grade 7 Beads?

  • Dimensional Integrity: Cleans surfaces without removing base material.

  • Satin Aesthetics: Delivers a smooth, non-reflective professional finish.

  • Eco-Friendly: Chemically inert, lead-free, and safe for delicate environments.

  • High Roundness: Minimum 80% roundness ensures consistent stress relief (peening).

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