Corrosion inside aluminum dessicant dryer

[myredracer]

I have a 2 quart aluminum Wilkerson dessicant dryer that I bought used about a year ago. When I got it, it had some corrosion inside, the white powdery stuff. I cleaned it and put new beads in it when I got it but it appears I may not have been keeping on top of checking the beads because I just opened it up and found there is now a lot more white powder than it had before.

Is there some kind of cleaner I can put inside to dissolve the powder/corrosion like CLR or something? After that, is there a POR-15 kind of product out there that I can paint over the aluminum and whatever corrosion might still be in there? The canister is almost 2' tall and hard to reach down into it and sandpaper isn't going to work. What about blasting it clean with some coal slag that I have?

I might also ask it there is an estimated number of hours you can get out of these things before have to replace or dry the beads out? Have been using my air tools a lot lately and need to get this thing back in service pdq.

I have about 40' of copper pipe before the dryer plus a Devilbiss filter/water separator and a Motorguard filter.

Thanks!

 

[Hammer1963]

Clean thoroughly with an acidic aluminum prep cleaner and apply a two component epoxy coating such as an epoxy primer or epoxy adhesive/filler. I use this method on the internal areas of corroded aluminum wheels where the tire seats and seals.

 

[pilotmotor]

some newer car bodies are aluminum so a body shop supply would probably have something to meet your needs.

 

[myredracer]

Clean thoroughly with an acidic aluminum prep cleaner and apply a two component epoxy coating such as an epoxy primer or epoxy adhesive/filler. I use this method on the internal areas of corroded aluminum wheels where the tire seats and seals.

I've got some EP I can probably reach in with a brush or a brush taped to a stick. Will see what the local body shop supply place had for an aluminum prep cleaner.

Thanks!