New Way Letter - Go Build, Part 7, Tube Seam Fill

I like to mark the tube spiral indents with a sharp pencil. It makes them easier to see when applying the CWF filler.

I dip just the tip of my X-Acto knife in the thinned CWF filler.

You won't need much, so wipe the excess off the back of the knife tip.

Run the tip into the seam recess with a back and forth motion. The blade directs the filler into the seam.

I dip and fill about one inch at a time.

I had hoped the plywood fins would only require some filler/primer to fill the very shallow grain.

There were a few "splinters" that needed some CWF and sanding.