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                        HELP! Something that looks like iron filings in my paint??

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                        5 replies
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                        shrikes
                        • Member since
                          November 2003
                        • From: Manila, Philippines
                        Posted by shrikes on Saturday, February 21, 2004 3:12 AM
                        Sigh [sigh] I guess i should stick the the good ol' dependable rattle can... At least for this project. Just so you guys know, i've scrubbed down most of the aluminum already. (I just went at it with a toothbrush and soap because it's acrylic and i didn't want to harm the other bits i painted with enamel). I hope to get this done by march! Smile [:)]

                        Thanks for the autopsy, Scott and heath!! Wink [;)]
                        Blackadder: This plan's as cunning as a fox that used to be Professor of cunning at Oxford University but has now moved on and is working with the U.N at the high commission of cunning planning
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                        Anonymous
                        • Member since
                          November 2005
                        Posted by Anonymous on Friday, February 20, 2004 8:36 PM
                        I agree with Scott, I'd be shooting a cardboard box or spare piece of plastic, before I hit that model again. I thought the same thing Scott did about the paint drying too fast before it hit the model.
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                        MusicCity
                        • Member since
                          January 2004
                        • From: USA
                        Posted by MusicCity on Friday, February 20, 2004 8:25 PM
                        If you want to come to Tennessee you can use mine Big Smile [:D]

                        If the pressure is too high and you get closer you'll start to get runs, obviously. It might be work it to pick up a sheet of styrene at the local hobby shop and practice with that until you find a distance and paint feed rate that works best.

                        Scott Craig -- Nashville, TN -- My Website -- My Models Page
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                        shrikes
                        • Member since
                          November 2003
                        • From: Manila, Philippines
                        Posted by shrikes on Friday, February 20, 2004 6:02 PM
                        It may be the pressure. My buddy has a simple compressor with just an on and an off switch, so i have no idea at what pressure we were spraying at... i was spraying at about 9-12" from the surface. maybe i was too far. i experimented and came up to about 4-5" and bubbles started to form on the surface of the model... Regardless, i suppose spraying closer is the key (since there is no way to adjust pressure)... Let me clean it up and have another go.
                        Thanks, Scott!
                        Blackadder: This plan's as cunning as a fox that used to be Professor of cunning at Oxford University but has now moved on and is working with the U.N at the high commission of cunning planning
                        Report Abuse
                        MusicCity
                        • Member since
                          January 2004
                        • From: USA
                        Posted by MusicCity on Friday, February 20, 2004 6:35 AM
                        I'm no expert, but from the photos it looks to me like the paint was drying too much between the airbrush and the surface of the model. What pressure were you using and how far from the model?

                        I haven't used the flat aluminum paint specifically, but most of what I paint is with Tamiya acrylic thinned with alky and shot with Badger brushes, although not the Badger 150. I usually thin the paint with 90% isopropyl alcohol (note that it is 90% and not the more common 70%) mixed 3:1. I usually spray at about 15 psi around 4-6" from the surface (probably more at 4" than 6").

                        If you haven't sealed it yet the paint will probably come off with Windex or Simple Green.
                        Scott Craig -- Nashville, TN -- My Website -- My Models Page
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                        shrikes
                        • Member since
                          November 2003
                        • From: Manila, Philippines
                        HELP! Something that looks like iron filings in my paint??
                        Posted by shrikes on Friday, February 20, 2004 6:00 AM
                        Hiya, fellas! Need some help here!

                        My friend (Redknight38) was good enough to come over to my place today and let me use his airbrush... i intended to paint my F-86F that i had painstakingly primed, sanded and prepped for this big day.

                        i bought a new bottle of Acrylic Tamiya XF-16 Flat aluminum just for this. The airbrush we were using was a Badger 150, and we stirred the paint well and thinned it with alcohol, to what looked like the consistency of milk... We set up the Sabre and let 'er rip, only to find what looks like iron filings on the model... i figured we didn't mix the paint well, so we made another batch and put it in a bowl of hot water (like you do with rattle cans).

                        After 30 minutes, we sprayed on another coat, and still those filings appeared... i can't understand it. Redknight switched paint and tried some olive drab in it and no filings were present... is it something with the paint?? I can't understand it! I wasn't letting the paint accumulate in any one spot because i kept going back and forth on the model with out stopping and over spraying to keep the paint consistant.

                        I took some pictures and here they are below.i hope you can see what i mean... now i don't know how to remedy this... Sigh [sigh]

                        does anyone know what i did wrong?

                        -Shrikes




                        Did all the images come out?
                        Blackadder: This plan's as cunning as a fox that used to be Professor of cunning at Oxford University but has now moved on and is working with the U.N at the high commission of cunning planning
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