dude you can not powder anyting blasted with wallnut shells!!!!! the oils will outgas your powder like a mo fo!!!

 

why cant i powder coat anything thats been blasted with walnut shells?-----i am not trying to argue with you......i am just not sure what yore talking about.
i havent to it yet like i planned and gonna ride a little witha friend this weekend.....for whatever reason it doesnt seem to be leaking that bad but now i am set up i will still do it.

 

I see your a supposed powder coat and sandblast guru yet all you do is tell people what they can't do and don't actually give any advice. What would you recommend as a type of media and at what pressure for this particular job? These forums are supposed to be for people to help others who aren't as experienced in certain things as others. I for one have had enough of the people with this so called "infinite wisdom" telling others that they simply can't do something but actually offer no help.

 

ha ha ha ok... ha ha ha every metal has different applications, we have 2 cabinets, one is 80 grit alum oxide and the other is alum and steel grit mix... you can also get away with black dimond sand as it is cheaper. i would say at about 45 psi, depending on your gun and tip
major trouble you get wiht wallnut shells and soda even is trouble with adhesion, oils in the shells create issues when you then bake the part.
can you point out where i have told people not to do somehting and not supported my answer? i know i have at least 100 times on powdereing laced wheels, laying powder with bearings, stripping and removing paint/powder... not really sure what you are refering to, i never claim to be a "guru" just offer help where i can and when it is asked... actually i handle the bike builds for the company, Sean my busn partner is the "guru" you seak. there are people that use wallnuts we are just not one of them because we can not get the glass finishes we do with it... and have heard horror stories from others in the industry. just trying to offer some tips bud.

 

my recomendation is alum oxide... filter it constantly and keep the blast in constant motion at around a 45* angle

 

also not sure if you have the harbor freight gun, if you do... return it... it is JUNK does not fluidize at all, if you are a hobby person i sugest eastwoods hobby gun. We use wagners in the shop but the pro guns from eastwood are pretty good as well... if you need a hobby gun i got one i would selll with fluidizer tip for $50 bucks still in the box... got it for free wiht a promotion, and my cousin i think may have used it once. But for hobby guns that is the go to no question.

also... Harbor freight powder is junk, pin holes, fisheyes, and runs away on the edges... i sugest powder by the pound