Cleaning Aluminum valve covers?
 

Want to make valve covers look nice and new looking again. Not wanting polished but mild corrosion, and dull removed. Some kind of blasting, chemical? Thanks. Sorry tried posting picture but it is to large from my phone

Re: Cleaning Aluminum valve covers?
 

Get some new Glass Bead from MSC or other similar supplier.(But clean all the oil out of them 1st or the glass will pack into wherever its wet.) After a few uses the glass will break down and get real powdery which will change the appearance of what you are blasting.

Re: Cleaning Aluminum valve covers?
 

NAPA aluminum brightener----nasty stuff so follow directions carefully---wear gloves and eye protection---- DO NOT GET IT ON YOUR SKIN OR BREATH THE FUMES ---it will burn you has acid in it---FED 387

Re: Cleaning Aluminum valve covers?
 

See if there is anyone around that does soda blasting. It will make them look very nice with no chance of engine damage like you have with glass beads.

Re: Cleaning Aluminum valve covers?
 

I've used it, and the Purple Power version (not the purple cleaner).
You have to be careful. It turns some material dark, rather that bright.

Re: Cleaning Aluminum valve covers?
 

Wet blasting is amazing what it can do to the finish