| Hi,
I'm no expert on the Astec range , but spraying at twice recommended pressure will almost certainly cause problems with over-spray, not to mention possible damage to the airbrush.
There were some compressors available on E Bay quite recently, if memory serves they were about £40 and appeared reasonable. If you are using it indoors, please get a quiet one, some older models make a very irritating, loud din.
J. |