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Old 03-11-2019, 04:12 PM
echozulu echozulu is offline
Join Date: Mar 2018
Location: Ocean City, MD
Posts: 67
Default Batch Priming Setup

I did a quick search and found some photos but not a lot. I'm looking for recommendations or experience on how you prime your parts, specifically in large batches.

It took me to doing the tailcone to finally overwhelm my little table that I used previously. I use rattle can primer and would prime one side, dry, and flip it over to prime the other side.

I'm not planning on painting myself so a positive pressure paint booth seems kind of overkill. My current plan is to get some twine and string it between two points in the yard like a clothesline. This will allow me to get both sides at once and then let it sit and dry. The problem I have is the place I live is near the ocean and rains a lot. So I'm looking for some sort of portable solution like a garment rack that I can push in and push out.

Any pictures or suggestions would be appreciated!
RV-10 - Empennage 90%
QB Fuse - Delivered
QB Wings - Delivered
Ocean City, MD
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Old 03-11-2019, 05:29 PM
wirejock's Avatar
wirejock wirejock is offline
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 3,331
Default Priming

I've got a few options. My "Go To" is my storage barn. I set a cheap baby gate on two saw horses and spray. P60G2 dries really fast so I can flip pretty much after the last pass.
Option 2 is for bad weather.
I have conduits strapped to my garage door frames. They are strapped so the doors still operate. I can suspend all sorts of stuff. My temporary paint booth is several shower curtains hung from the conduits plus on the floor and a ceiling. I use a bilge blower and dryer hose connected to a wall dryer vent in the garage. Same baby gate and saw horses are used as a down draft platform. Takes only a few minutes to set up and take down for a session.
I recently purchased a HobbyAir positive pressure respirator as an extra precaution.
Larry Larson
Estes Park, CO
wirejock at yahoo dot com
Donated 12/27/2018. Plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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Old 03-11-2019, 08:14 PM
PilotjohnS PilotjohnS is offline
Join Date: Jan 2016
Location: Southwest
Posts: 723
Default My experience

I tried suspending my parts from a make shift clothes line during one of my priming sesions. It didnt work so well. The parts were hard to hold with one hand as i sprayed with the other. The PG60 drys so fast it is just easier to spray on chicken wire, wait 10 min, turn over and spray again. I found a lazy susan helps too.
John S

WARNING! Information presented in this post is my opinion. All users of info have sole responsibility for determining accuracy or suitability for their use.

Dues paid 2019, worth every penny

RV9A- Status: tail feathers done less tips
Wings done less tips and avionics
Fuselage 30%
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Old 03-11-2019, 08:58 PM
bruceh's Avatar
bruceh bruceh is online now
Join Date: Mar 2008
Location: Ramona, CA
Posts: 2,209

I built a really crude wooden frame with some chicken wire attached. I would drag out my empty trash cans, put the frame over it, and then lay down the parts. Mind you, I live in a warm climate where this worked just fine 12 months of the year. At the end of the build, my trash cans were all fully primed.

Another tip: mix up just a bit more primer than you think you'll need, and when you fill up the spray gun, leave a little bit out. You'll find after spraying, you might just need that little bit extra to get it all covered. Using the two part epoxy primer and having to wait 30 minutes for it to induce correctly was a pain at times.
Bruce Hill
RV-9A N5771H flown over 600 hours!
APRS Tracking for KJ6YRP and New Flying Blog
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Old 04-03-2019, 11:51 AM
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BrianDC BrianDC is offline
Join Date: Mar 2016
Location: Northern VA
Posts: 210

I used one of the VANS shipping crates with some chicken wire as a make-shift spray table. For larger parts, I also use a piece of plywood with a 1x1 nailed along one edge that I can put on some saw horses.
Tried hanging things from wire but air from the spray gun pushed them around a bit. Still a necessary evil for some of the torque tubes.

Plenty of ways to make it work.
Brian Lester
RV10 - #41778
Empennage - Done (for now)
Wings - Done (for now)
Fuselage - in progress
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Old 04-03-2019, 01:01 PM
LCampbell LCampbell is offline
Join Date: Dec 2018
Location: Columbia, MO
Posts: 10

Iím really happy with the results from a quick trip to the hardware store for some PVC pipe, and half inch chicken wire, all pulled tight with some zip ties. Works great for shooting down through, weighs next to nothing, and I made it 7.5 feet long, so I could lean it up against a wall, vertically, if I ever needed to store it that way.

Bit of a side note, as Larry mentioned, Iím been using a HobbyAir for 10 years now, with the full hood, and love it. Huge viewing area, protects the whole face, including the eyes which get missed by normal respirators.

Iím following Larryís past advice on parts prep, and using the P60G2 primer, and have found that itís all I can do, to clean the parts, and fill up my sized screen, before my 2-3 hours are up, and I need to be painting, before the recommended time that the aluminum oxide would start to reform. So really, I donít think having a bigger screen would do me any good, so far.


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Old 04-03-2019, 02:11 PM
GeoffP GeoffP is offline
Join Date: Sep 2018
Location: Warrimoo, NSW, Australia
Posts: 46
Default Similar

I found similar things to the other posters above. Eventually I made a "table" similar to Lance's, but I used a piece of leftover reinforcing mesh which I covered with chicken wire and I stand that on two sawhorses. I safety wired the chicken wire to the mesh, which gave me lots of practice with the wire and pliers.
Living in Oz the weather is usually pretty good for painting, though typically I spray on the wire mesh under my shed (with respirator on), give them about 20-30 minutes then hang outside in the sun or in the top of my shed from a rack to fully dry. I haven't used epoxy primer yet, just a good quality etch primer from a 4l can that I thinned down to spray. Whatever wasn't used I just poured back out of the gun into a jar for next time.
RV-9, Tail Feathers done, Wings started
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Old 04-03-2019, 02:34 PM
rv7charlie rv7charlie is offline
Join Date: May 2006
Location: Pocahontas MS
Posts: 3,863

I primed almost all my small parts with self-etch primer in rattle cans. Hanging stuff on hooks is a guarantee of frustration for me; the parts take on a life of their own in the breeze from the spray can.

My favorite option for small stuff is an old aluminum window screen. Nothing can fall through it, and it's open enough to keep the air blast from moving the parts around. I just set it up on a couple of saw horses, garbage cans, or whatever else is convenient. If the sun is shining, I set up outside and the parts are dry enough to flip within a few minutes. I can then pick up the screen with all the parts still on it & carry it inside, if the weather is threatening.

BTW (in an attempt to freak out all the space shuttle builders here), a dishwasher with plain old (NON-no-streak additive) dish washing detergent is great for oil/dirt removal. I used it to prep for alodining my smaller substructure parts, and the alodine came out great.

FWIW, from a decidedly non-professional....

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Old 04-03-2019, 04:16 PM
ksdflying ksdflying is offline
Join Date: Mar 2018
Location: Antioch, Tennessee
Posts: 81

Okay, LOL, don't laugh. See link to see what I've done.

HAHA...but hey it worked actually pretty well. 20in x 20 in filter inside that I changed every paint job. The box fan in the back actually drew the air pretty well.
And my P60G2 primer application results were a billion times better than Vans quick build job that I got. Like not even comparison.
Dan K. RV-8 kit purchased 2014, build started Jan 2018, Slow build Emp. done - March 2018, Slow build Wings done -Oct 2018, QB Fuselage started - Sep 2018...
Avionics Panel arrived! - Jan 2019. Beautiful job by the excellent Co. in Billings MT!
Setting avionics finally - April 2019. Engine in hand.
Prepping and waiting for final Finish kit to arrive - June 2019
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Old 04-03-2019, 04:53 PM
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vlittle vlittle is offline
Join Date: Jan 2005
Location: Victoria, Canada
Posts: 2,085

Not an RV, but relevant.
V e r n. ====
RV-9A complete
Harmon Rocket complete
S-21 under construction
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