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  #11  
Old 10-21-2018, 07:24 PM
goatflieg's Avatar
goatflieg goatflieg is offline
 
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Location: Clarkston, MI
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[quote=WingsOnWheels;1296547]Adding a few more pictures. Painting has been a little slower than I like. It has been raining almost every weekend for the last month and a half, and now it just got cold. Just bad painting conditions all around. But it is done now. I just finished the second wing. Still have to do the wheel pants and gear leg fairings, but that will be down the road a bit. For now, it is time to start bolting this thing together.

I feel your pain. I want to get my belly painted while the fuselage is upside down... but lots of rain, fog and high humidity have delayed it. Now it's getting cold in Michigan, and I had to devise a way to heat the incoming air to the booth without risking death. I think I might get it done in the next couple days, though. Wish me luck. Your paint work looks excellent!
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  #12  
Old 10-23-2018, 07:19 AM
WingsOnWheels WingsOnWheels is offline
 
Join Date: Mar 2009
Location: Plano, TX
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Quote:
Originally Posted by mbauer View Post
Thank you for the estimates on the cash outlay, in particular curious about the paint booth cost.

Any tips on construction? Was thinking of using 2x2 and then a thin strip of wood to hold the plastic in place.

Did you notice any places where the plastic was pulling loose from just the staples? Did the filters plug up with paint?

The spinner looks fantastic, overall really like the blue color you used.

Thanks for sharing the photos.

Best regards,
Mike Bauer
Edit: to actually answer your question, the paintbooth was around $200-250 all said and done.

For the most part the paint booth has held up very well. A few staples have come out, but nothing significant. I have replaced the floor plastic a couple of times just to keep things clean. It only costs about $5 to do it, so cheap insurance.

For construction, just make the frame strong enough to hang mid-weight parts like the rudder, flaps...etc. Anything more than that is overkill. I like having only plastic on the inside. I spray the floor down with water before painting and have washed the walls down on occasion. a wood strip inside seems like a dust source. If you have a lip at the front like I do, run the floor plastic over the lip and out. That way you can blow dust out without it getting caught.

For filters, I am using the cheap home depot woven poly type ($0.98 each). They do a good job cutting out the dust and not hurting the airflow too much. If I were to do it again, I would add a third or maybe forth fan. The filter cuts the flow down by a good 50-60%. I have replaced the filters once for both inlet and outlet, they do get very dusty (mostly the outlet), but you can vacuum them out.

My original plan was to use an old home HVAC blower, I still think that would be best if you can find one cheap. For me nothing popped up at the time. OSHA spray-booth minimum is supposed to be 1mph flow rate so for an 8'x8' cross section: 5280/60=88ft/min. 88x(8x8)=5,632 cuft/min. If I recall, the fans were rated at 3200cuft/min each, but I didn't realize just how great the loss would be with the filter. That is why I suggest more fans.
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Last edited by WingsOnWheels : 10-23-2018 at 11:56 AM.
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  #13  
Old 10-23-2018, 07:22 AM
WingsOnWheels WingsOnWheels is offline
 
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Quote:
Originally Posted by schaplerrh View Post
BEAUTIFULLY! Would you please come paint my plane.

Robert
Just don't get to close before you make a lot of compliments...haha

The small parts are easy and came out really nice. The larger ones aren't quite as nice. A little orange peel and some dry spray here and there. The white can be cut and buffed so that helps.
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Colin P.
RV-6A #20603:Painting and moving to the airport for final assembly. Getting very close!
PP SEL / A&P
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  #14  
Old 10-23-2018, 07:40 AM
WingsOnWheels WingsOnWheels is offline
 
Join Date: Mar 2009
Location: Plano, TX
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Default Lessons Learned

Now that I am pretty much done, I just wanted to post a few more lessons-learned I am not going to rehash too much of what I already noted in prior posts.

1) Even though I read this myself a bunch of times and was told, metallics are very hard so shoot in single-stage! They are very prone to tiger-stripes and mottling. I was able to get it done, but it wasn't easy.

2) You cannot cut/buff single-stage metallics - even if they say you can, it doesn't work well. So plan on not doing it.

3) White is often harder to spray than the metallic. The first coat is easy, not the second coat. Just very hard to tell if you have a wet coat.

4) More light is not always better. I have overhead lights in my shop and I added 4 2200 lumen LED lights to the sides of the booth. It is too much, it just washes everything out. Most of the time I just turn on one or two of the extra lights. Ideally, you want the light around 70 degrees offset from to face of the part, so you see the reflection at and angle. Straight-on and you can't see a thing (more of a problem with the white).

5) Overall I am still pretty happy with the paint. For the topcoat a 4:1:1 mix worked well. I just switched between slow and medium activator depending on the temp. I used medium reducer for all. It is not as good as the PPG MTK I used for the interior, but it is a third of the cost.

6) If you are using the Van's pop-rivet static port, install them after paint. The paint builds up around the rivet head and may cause errors. I'll probably drill mine out and replace them. May need to touch up the paint around them.

7) Don't use plastic to mask anything (or put paper over the plastic). I wrapped my engine in plastic when painting the fuselage. The paint does not adhere to the plastic. When I went to topcoat, any primer that was on the plastic blew right off in large flakes (like quarter-size) and landed in the topcoat. A layer of masking paper over the plastic solved that problem.
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Colin P.
RV-6A #20603:Painting and moving to the airport for final assembly. Getting very close!
PP SEL / A&P
N616CG (Reserved)
I donate every year on my B-Day (in Dec)

Last edited by WingsOnWheels : 10-23-2018 at 07:44 AM.
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  #15  
Old 11-17-2018, 11:10 PM
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Av8rRob Av8rRob is offline
 
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Thanks for posting all this, it helps to read your painting story.
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