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Posted: 1/6/2015 9:08:53 PM EDT
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Ok, so I got the upper stripped, and degreased with carb cleaner, and a toothbrush. Also scrubbed in hot soapy water with brush, and rinsed with hot water. I put them in the toaster oven to dry out.
Now that everything is oil free, and dry, the upper, and charging handle still have a sort of a rusty looking haze in some places. Any way this can be removed? Will it harm the moly resin? I plan to give everything a wipe down with acetone right before they get heated and sprayed, just wondering if this haze will matter, or is it a stain in the anodizing? |
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As long as you prepped it by sand/media blasting, you should not have any problems.The original anodizing is what I believe leaves that "rust" color behind.
Don't forget to pre heat the parts before spraying too. I keep a hairdryer nearby to keep the parts hot between coats. DanG |
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Quoted:
This is a rust colored like haze in some of the nooks and crannies on the upper. it has not been bead blasted, still has original anodizing... Quoted:
Quoted:
Dark areas are most likely left over areas of anodizing This is a rust colored like haze in some of the nooks and crannies on the upper. it has not been bead blasted, still has original anodizing... Understood. You should be fine. You've done more prep work than 90% of the bubbas of the world do before they use gun coatings. If you want to be absolutely sure you could make up a lye bath. Google will tell you how to do it. |
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Quoted:
Understood. You should be fine. You've done more prep work than 90% of the bubbas of the world do before they use gun coatings. If you want to be absolutely sure you could make up a lye bath. Google will tell you how to do it. Quoted:
Quoted:
Quoted:
Dark areas are most likely left over areas of anodizing This is a rust colored like haze in some of the nooks and crannies on the upper. it has not been bead blasted, still has original anodizing... Understood. You should be fine. You've done more prep work than 90% of the bubbas of the world do before they use gun coatings. If you want to be absolutely sure you could make up a lye bath. Google will tell you how to do it. Yeah, I hosed it all down with carb cleaner, and then a hot soap and water scrub with a tooth brush, rinsed with water and heated to dry. Didn't see any oil weeping out of it with heat, so I think I'm good as long as i wipe it down with acetone right before the airbrushing. I might try to take some steel wool too the spots and then scrub them again to be sure. My lower is new, so no worries on it, but someone had filled the roll marks with china marker, that was a bitch to remove. Soaked it with kroil, and scrubbed with tooth brush, then blasted with carb cleaner. It's all oil free that is for sure! |
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