First Time Trying My New Air Eraser

[Fossil Claw]

About 10 minutes of practice.

Mainly focused on the large brachiopod.

[TOM BUCKLEY]

I'm assuming that the picture on the left is post air abrasion. It looks like the brach cleaned up nicely. The striations show much more clearly. What abrasive and air pressure did you use?

Tom

[Fossil Claw]

Mix of aluminum oxide and baking soda. About 50 psi.

[Malcolmt]

Looking good.... you should give just dolomite a try at about 30 PSI , works fine in a top load air eraser . 50 PSI is really more than you generally need to use in a top load air eraser. I believe that the air eraser is only rated for a max of 55 PSI. You can get dolomite at pottery supply stores as they use it for making glazes. Aluminum oxide is very abrasive and is nasty stuff if you breathe it in. At 50 PSI and using some aluminum oxide you risk burning through the small brass holes at the bottom of the top load tank. The brass is quite soft compared to the rest of the air eraser construction.

[Fossil Claw]

Aluminum oxide. Too harsh.dolikite. too harsh.

Baking soda very very slow.

Thinking about trying fine grit walnut shells.

Much of what I have found looks great natural. Some have excessive shale, matrix etc. And would look better with some vleaning.