Understanding abrasive sizing for abrasive blasting




When it comes to sandblasting abrasives – many people in the industry underestimate the importance of using the correctly sized abrasive for the job.

It's important to understand what the mesh size means - For example, a 30/60 vs an 80#?

These numbers refer to the physical size of an abrasive’s particles, as they relate to a linear inch. Picture it this way – a 30 mesh means if you get 30 abrasive particles in line, like in a row, they'll take up an inch. An 80 mesh will fit 80 particles in a linear fashion in that same one inch.

The higher the number… the smaller the abrasive particle, it’s the same as sandpaper.

So when you have a 30/60 this means that all the abrasive particles are supposed to be between then 30 mesh and a 60 mesh size.

The size of the abrasive particles make a large impact on your project results. The larger the particle, typically the larger the profile you will create. If you create too much profile, you will be wasting paint. Other points to consider are the consistency of the particle sizes. The more consistent they are, the better you can meter them, saving you money.

Also, some abrasives have names and not sizes like a “Medium” or “NewSteel” or “GX2”. What that means is we recommend that you always talk to a BlastOne representative about what you are blasting, before you order abrasive. This will allow us to get the perfect abrasive for your project.

You can refer to our Abrasive Size vs Surface Profile comparison guide here.

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Mesh, grade, size? We'll talk you through it.

Your choice of abrasive can have the biggest impact on your project results. Talk to us about your specifications and we can help you select a suitable abrasive size.