I am looking into purchasing a compressor for airbrushing. I am aware I will need a moisture trap, but what other technical specs should I be looking for regarding:
HP
PSI range
Also, how will I know the compressor I get won’t result in pulsing?
Is a regulator necessary?
Is there anything I should know about buying a compressor for use with a Badger 150?
The horsepower is not really a consideration if you are using it for modeling only.
Any compressor that will deliver 20-30 psi or more should suit you just fine.
The only compressors that pulsate are the diaphragm models such as the Paasche D-500 and others like it.
If you are just spraying single colors on something like cars then it is not absolutely necessary unless you are using a compressor that delivers more than 40 psi or so.
You must get one if you want to be able to control the air for fine detail spraying.