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Author Topic: sanded too much!  (Read 1156 times)

Offline Chris Belcher

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sanded too much!
« on: April 30, 2018, 10:16:13 AM »
I am finishing a Legacy 40 and used carbon veil with Nitrate dope on the fuse and wing, which is a sheeted Bob Hunt wing (tail feathers are either solid or Polyspaned and doped).
I think I sanded too much dope off because when I used DC540 primer there are places that look like...well...like i sanded too much dope off. Like it's going down to the carbon veil itself. The real problem is I cannot SPRAY dope, I can only BRUSH dope. Should i just sand as much of the primer off as I can and fill the bad spots with more dope? I tried this on a small piece (landing gear spat) and the dope softened what little primer was still there and made it "tuggy", like I could feel the brush dragging the primer a bit. It sanded smooth after drying but I would hate to learn this doesn't work  on the nose or top of the wing which by stunt law is where all finishing anomolies occur!!  Any suggestions??
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Offline Chris Belcher

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Re: sanded too much!
« Reply #1 on: May 03, 2018, 04:00:00 PM »
Hey Ty...thanks for the info. I should have said that I can only brush dope BUT...plan to paint with Rustoleum spray cans...i left that part out. I got a really nice finish from Rusto spray cans on an earlier plane and plan to do so this time as well. SO my only issue is that the primer is on and need to sand off and add more dope just to the areas I sanded too much of the dope off before I primed.
I brush dope in my apartment but can go elsewhere to use spray cans but not really equipped to spray dope. Wish clear dope came in  a spray can...does it??
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Offline RknRusty

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Re: sanded too much!
« Reply #2 on: May 03, 2018, 05:54:54 PM »
Chris, it does if you go to Home Depot and buy a PreVal sprayer kit and some extra cans of air.
Rusty

https://preval.com/diy-pro-products/preval-sprayer/
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Offline Avaiojet

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Re: sanded too much!
« Reply #3 on: May 03, 2018, 06:11:19 PM »
Chris,

I would spray some primer into a small container. Let it set up a bit then brush it over those areas. They are low areas.

As many coats as needed.

Sand it down a tad and you'll never know you brushed those areas. Color coat will hide it even more.

I spray ALL my models outside and enjoy doing it.

CB
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