David Rose
07-19-2006, 12:57 AM
I am setting up a too small compressor to save my sand blaster sand from oil, water and particle contamination. The job I am doing requires that I go straight from the blaster to air cleaning, then painting. The blast agent must be VERY free from oil for this to work. The paint is a sort of baked finish that seems finicky as to how it adheres. NO solvent is suppose to be used after the blasting.
I'm confused. On the (most excellent) advice of T. Hatfield, I bought a dual filter air cleaner/dryer for line use and a small filter for use right at the paint gun. Cambpell Hausfeld suggests, "Install a CH filter (PA2121) before and after the coalescing filter/dryer for optimum performance." The air cleaner/dryer is the PA208501 setup with a water trap/filter (coalescing) and a silica gel (drying) filter connected inline to each other. The filters that CH recommend attaching on either side are both 5 micron. The main filter/dryer is .01 micron. I can see that maybe that would "protect" the main filter system from large particles, but what good would it do downstream? Are they just trying to sell two more $20 filters, or is there benefit?
Btw, until I get the compressor and all lines replaced, does anyone know a good way to remove oil and water from my old flexible (rubber?) line? I thought about pouring denatured alcohol through it.
David
I'm confused. On the (most excellent) advice of T. Hatfield, I bought a dual filter air cleaner/dryer for line use and a small filter for use right at the paint gun. Cambpell Hausfeld suggests, "Install a CH filter (PA2121) before and after the coalescing filter/dryer for optimum performance." The air cleaner/dryer is the PA208501 setup with a water trap/filter (coalescing) and a silica gel (drying) filter connected inline to each other. The filters that CH recommend attaching on either side are both 5 micron. The main filter/dryer is .01 micron. I can see that maybe that would "protect" the main filter system from large particles, but what good would it do downstream? Are they just trying to sell two more $20 filters, or is there benefit?
Btw, until I get the compressor and all lines replaced, does anyone know a good way to remove oil and water from my old flexible (rubber?) line? I thought about pouring denatured alcohol through it.
David