Wednesday, January 20, 2021

Painting flap and trim-tab

Next we decided to paint the flaps which are going to be painted with Superflite's "Cessna Vestal White", an off-white color.  We built a few new supports that hung down from the ceiling of the paint room so that the parts could be fixed rigidly and not swing around while spraying, which was an issue we ran into during the priming.  This time around, we took extra steps to try and fix the dust issue.  We ran the paint booth fans for about 20-30 minutes prior to painting to reduce the dust population in the room, used tack rags to wipe any dust, and blew the parts off with air prior to painting (these tips came from internet searches of other painters who deal with this issue).  We also wet the floor prior to painting (another common trick), but had done this last time when we still got a lot of dust in the paint. 

We sprayed a mist coat, and then a full cross-coat of the Vestal white.  At first glance, the parts looked great, and the good news is that we only saw a couple dust specs in the paint.  However, upon further inspection, the bad news is that we ended up with a ton of runs in the paint on both the right and left flap.  We may have thinned the paint a little too much, and I may have sprayed the last coat too slowly.  I've been pretty successful priming and painting without runs up to this point, but not so lucky this time around.  Sigh...this will take some time to fix as we will have to sand and respray.  Another learning experience.  I'd like to be able to do less learning, and more painting.  

Dreaded Run in the flap

The trim tab came out better, but has one small run at the bottom that we need to fix.   Hours: 6
Trim tab painted

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