Is my compressor too small?
I bought a compressor several years ago. It is a DeVilbliss 4.0 30 Gallon. It puts out 6.9 CFPM @ 90 PSI. t. I bought it mostly for sandblasting and painting. However I have never been happy with the results of sandblasting. I have used glass bead and some black oxide something but I find it still doesn’t completely remove all traces of rust. Is it too small? What can I do to make it better? Should I try different abrasives?