Abrasive Blasting 101
Updated January 2022: Almost all of our blast cabinets are able to use glass bead abrasive media. Most operators and manufacturers know when to use glass beads and why. We’re sharing some tips that we’ve picked up over the last 50+ years in this industry remember Media Blast manufactures more than 180 machine models.
ProTip: Garnet, slag abrasive, and glass beads all rate about 6.0 on the Mohs Scale. Garnet and slag are not recommended for blasting cabinets; yet glass beads are one of the most used recycle abrasives. Why? The secret is in the shape, ROUND!
ProTip: If you are buying an inexpensive abrasive like slags that recycle very few times, it’s good to reference that glass beads recycle 20 to 30 times. So you may actually be paying more for slags which create a huge mess when they quickly plug up any dust collector.
ProTip: Larger beads do not withstand the same pressure as smaller beads. Normally you need to reduce the pressure about 15% when blasting a stainless steel part, and even more when blasting super metals. The abrasive delivery method should also be accounted for because siphon and direct pressure have very different maximum impact velocities.
Blasting glass beads are a great choice for most abrasive blast cabinets because they recycle when used appropriately, maintain the integrity of most parts they contact, and improve visibility. Many of our abrasive blast cabinets are designed to use glass beads, check out our extensive line of machine models today.