Grit Size Conversion Chart

Steel abrasives are often measured in grit size indicating the number of particles in a specific area, whereas mesh sizes measure the particle size passing a woven wire screen. Non-steel abrasives larger than 40 grit also use the direct pressure delivery blasting cabinets to pneumatically push the larger and heavier abrasives. Media Blast & Abrasive recommends the PowerPeen for these larger sizes.

Siphon abrasive blasting cabinets, i.e. the N-200 can also use steel type abrasives when the size is 80 grit and smaller. Normally a larger production gun is used to boost the siphon-feed of these larger/heavier abrasives. We offer additional information related to:

• Media blasting basics
• Compressed air basics
• Glass bead conversion chart
• Dictionary of blasting terms and options