So you sandblasted your valve cover and now its trashed...wait! Theres a solution!
Oct 12, 2014, 10:38 AM
#46
Just a suggestion to anyone that wants to powder coat ANY valve cover and not want to have to go through a process like this. Have your powder coater either use ONLY soda as their media of blasting, or you can combine the use of chemically stripping the paint with some type of paint stripper and then use XL soda as the media for etching. If you don't understand why, its because its dissoluble with water. Strip, blast, rinse, coat and no need to worry about sand or glass beads damaging bearings. I've used this method to complete MANY valve covers for many types of vehicles. No issues with bearings or powder adhesion.
You gotta look out for powder particles/grains getting inside the baffleing though.. Those will do just as much damage as sand og glass.
I had to remove my baffles after powdercoating, to clean for these *****es.
Jan 18, 2015, 10:50 PM
#49
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people have been sandblasting and powdercoating valve covers for ages without any of this. most shops that have done this sort of thing before, cover the opening before blasting and whatever dust gets in easily comes out after. just put the valvecover in a large tub of water and hose it from both ends. you will see the initial dust come out, then clears. I did mine in a white tub and nothing came out of it after a few washes. this is my 4th valve cover I have done and not issues.
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