Title: Prep and paint Left HS frame parts
Nothing too exciting to share here, literally my least favorite part of the whole process, scuffing parts for paint. Several nights spent scuffing all of the left side skeleton pieces. It's been very cold over the last few weeks so not ideal to paint in a small garage that is not heated. Fortunately the weather has warmed the past week and I was able to finally get all of the left side parts primed. Process went much better this time after my initial experience with the rudder. I will say this, I chose a gray colored SEM primer because I didn't like the dark green or neon green that is more common but looking back, CHOSING GRAY PRIMER as a color was stupid. It makes it very hard to see where the thin parts of the paint are. I really have to look closely at what I'm painting to see if it needs another pass with the rattle can. Overall though I'm happy with my paint setup in the garage. If I can paint with the garage door partially open it is manageable. My order of battle for paint is to prep the parts by deburring and edge prep first which is usually done during the mockup process. Then once the parts are separated after mockup, scuff with maroon Scotchbrite pads using a little bit of distilled water to remove the alcad layer. The water keeps the AL dust down and seems to help with the scuffing process. Then clean with denatured alcohol until the rag is not showing any more signs of aluminum residue. Then dimple any parts that need to be dimpled. Finally a quick cleaning with acetone and immediately into the paint booth to await spraying. Trial and error has taught me that it's a lot easier to scuff and initially clean parts if they are not dimpled yet. Seems to make the process go a little easier that way. Also in this round of work was the need to drill a hole through the left side front spar and spar doubler to accommodate a pass through for a trim cable. So that was done prior to scuff and paint with a unibit stepping the hole up one diameter at a time.


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