- This topic has 21 replies, 7 voices, and was last updated 17 years, 10 months ago by
SCOTT EVANS.
SCOTT EVANS.-
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Conway Stevens
Well after some talk with Art It looks like we are working out a painting workshop for folks to come and learn and watch. It will be a topic at the NCR meeting that we will discuss. Anyhow.. I actually work in the chemical and sales side of paint for automotive. I have over many years now painted and done prep work so I do have experience. So from that experience let me let you in on something other then just the primer you use. But the primer is where we start… First off use a good prep cleaning agent. Gets all the waxes and greases off. Those can make for paint that easily flakes off Next I recommend using a 2K primer. One that catalyzed or hardened. It will make for less issues with chemical reactions as well as be more durable and chip resistant. Next Sand and prep over that again using a good cleaning agent. Then spray a good base coat or single stage if you wish. Both of which again I recommend using a catalyst in it The catalyzed base coat will now also become more durable than one that is just evaporative curred like most reduced only bases are. Then lay a good high solids clear and catalyzed Clear coat over the top. You will have a paint job that survives a lot and also looks great. Ive worked with Dupont, House of kolor, PPG, Martin Senior, Sherwin Williams, BASF and others.. Many are very similar Try to always use a good Acrylic enamel or Urethane based set up. HVLP is the best way to go.
Conway Stevens
BTW if ANY of you want custom colors or special made paints or even have a color you want come and see me and I can mix it and get you hooked up with everything you need. That even includes all the prep and finishing glazes you need all the way down the line and I give a nice discount for rocketry members to. Ask Art or Justin and some others who have gotten paint from me..
Bruce R. Schaefer
Ask Art or Justin and some others who have gotten paint from me..
My next rocket is sitting in the garage in pieces. The one before it was justed primed with over-the-counter spray can Napa gray primer. Great primer (but not for filling). I wasn’t going to paint this next one until I fly it once–maybe never, just fly the fins off it, hopefully figuratively. But after the paint job Art did on the one that flew last June, it will have to be painted eventually. But I don’t want him to come up with the paint. And since I know where he gets his paint, Conway, we’ll talk at the annual meeting about me getting what he needs to do it, plus I’ll get him an M reload. The rocket Art painted, besides enduring an M flight, went on a dance across the grasslands. Two fins that were plowing the grasslands wore down (passed the clear, paint, primer, and outer FG layer) to the Carbon-Kevlar hybrid layer–which is kinda cool if you want to show someone what “composite” means. The thing picked up rocks for goodness sakes! Some paint chipped off where I used 6 screws to hold two sections together. That junction took a lot of stress. But other than that, hardly a scratch. If you want a finish that takes punishment, automotive paint works really, really well. First flight will be the spray can Napa primer. Then I’ll talk to Art…
Art Hoag
JW, I think you would be doing yourself a big favor if you were to clear a rocket, wet sand it with 2000 and buff every last millimeter of the rocket. I really think you would be making a difference by doing that.
Just my thoughts, anyone else?
Art
SCOTT EVANS
HVLP
I think thats what they like to use painting aircraft fabric covering.
What king of pressure those guns work on???
My old Sharp runs on 35lbs, or maybe thats the texture gun. 55lbs ???
Been so long since I pulled off the shelf!Scotte
Conway Stevens
JW, I think you would be doing yourself a big favor if you were to clear a rocket, wet sand it with 2000 and buff every last millimeter of the rocket. I really think you would be making a difference by doing that.
Just my thoughts, anyone else?
Art
agreed.. It would be a polished finish then and the air flow would be better.
Conway Stevens
HVLP is High Volume Low Presure. They normally run from about 15 to 45 psi but use about 5 to 9 CFM. Much better then a standard old style gun.
Anonymous
JW, I think you would be doing yourself a big favor if you were to clear a rocket, wet sand it with 2000 and buff every last millimeter of the rocket. I really think you would be making a difference by doing that.
Just my thoughts, anyone else?
Art
Art, I am going to try a TRA altitude attempt for the M next year at BALLS and I’d like to pull out all the stops. I’m also going to try to fly the rocket 2 or 3 times in the same day (long story) but I won’t have time to wet sand it. I’d be very interested in as smooth of a finish as possible. This may be a great idea…
SCOTT EVANS
😯
HVLP systems
I was checking the price on the net. hmmm
Kinda hard to spring for that when you have a compresor
and a high presure gun already on the shelf.scotte
Conway Stevens
JW, I think you would be doing yourself a big favor if you were to clear a rocket, wet sand it with 2000 and buff every last millimeter of the rocket. I really think you would be making a difference by doing that.
Just my thoughts, anyone else?
Art
Art, I am going to try a TRA altitude attempt for the M next year at BALLS and I’d like to pull out all the stops. I’m also going to try to fly the rocket 2 or 3 times in the same day (long story) but I won’t have time to wet sand it. I’d be very interested in as smooth of a finish as possible. This may be a great idea…
Wont have time to wet sand it? It wont take anymore then a day. and then polish it the next day.. And you dont need to do it between flights. Maybe just wipe it down with a spray cleaner wax. Then your good to go.
Conway Stevens
Bruce R. Schaefer
Art Hoag
SCOTT EVANS
Anonymous
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