Introduction

Medias’ Botanical Abrasives are hard and fibrous abrasives made from crushed walnut shells, apricot pits and corn cobs in accordance with the industrial standards. These products are well known for their excellent durability and elasticity, hence, used widely in grinding and polishing processes.

Properties

Characteristics

1. These botanical abrasives are suitable for grinding and polishing surfaces without leaving scratches which may lead to oxidation.
2. The different grain sizes available can produce different effects. Walnut Shells are available in 15 grades, Apricot Grits and Corn Cobs in 8 grades.
3. Compared with similar abrasives made from other materials, botanical abrasives have a lower cost.
4. There is no danger of silicosis or other occupational diseases developing from the use of botanical abrasives
5. It is easy to handle botanical abrasives.

Usefulness

1. Grinding, Polishing
   1. Shot Blast
      • Deburring products made from hardening resins such as urea, phenol and epoxy.
      • Deburring semiconductors and other electronic devices
      • Deburring zinc, aluminium, tin and other soft metals
      • Removing residual foreign matter from castings, etc and removing rust, paint, carbon deposits and other adhering substances
      • Surface finishing of firebrick
   2. Barrel Finishing
   • Polishing and burnishing eyeglass frames, watch cases, etc
   • Polishing and processing buttons, glass, rinsing fixtures, screws, etc
   • Deburring zinc, aluminium, Tin and other soft metals
   • Dressing of skins
2. Others
   • Manufacturing of grinding wheels
   • Filter materials (strainers in septic tanks)
   • Adhesives and fillers for resin molded products, venners, etc

Principal Applications

• Electric components
• Semiconductor
• Eyeglass frams
• Watch case
• Buttons
• Glass
• Screw
• Pinsing fixtures
• Table ware
• Mold
• Firebrick
• Grinder grindstone
• Many others

Following many years of research, and development walnut shells have been found to be a comparatively soft high grade botanical abrasive. This is our best-selling abrasive, with the widest applications in the market. Our walnut shells have uniform grain size. We take great care in preventing the inclusion of foreign matter or dust in our abrasives, thus assuring its high quality
Apricot grit is made from apricot pits. It is slightly harder than walnut shells. Through a special process, the fat has been removed from the pits, making this abrasive suitable for processing after soldering of semiconductors, such as deburring, where fat is not desired.
Corn cobs are the softest abrasives. It is widely used as a polishing agent in various barrel finishing processes. Since corn cobs are also highly absorbent, they not only absorb both water and oil but also brighteners, such as wax. This increases the effectiveness of the polishing

Standard (Walnut Shells)

Grain Size Example(full-scale)

• Note: Products with antistatic treatment are also available

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