I'm looking at buying an air eraser, also known as a mini-sandblaster. I want to use it to remove letters and numbers from O-scale freight cars without removing the underlying paint. I plan to use baking soda as the abrasive medium.
The products I'm considering are a Paasche model AEC air eraser and a Badger model 260 mini sandblaster. If anyone could share their experiences with either or both of these products, that would be a big help.
I know that Harbor Freight sells a knockoff version of the Paasche AEC. I have been through two of those and neither one worked. The first one had a completely stripped abrasive adjusting screw and the second one had much reduced airflow vs. the first and the tip clogged repeatedly. I was able to get about 5 or 6 seconds of use between cleaning the tip and it clogging again. I'm now looking at a "name" brand.
Thanks in advance for any help.