Rick, this is one of the coolest finishes I’ve seen on this forum. How did you get the tape to lay so flat on the fin can and fillets?
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Thanks. It looks even better now, with a urethane clearcoat over the whole thing.
It isn't quite as perfect as the photo makes it look, but its part luck and part technique I think. There are four strips of foil tape that are run axially between the fins, and then a wrap band at the top of the fin can (and another below the cone). The luck part was width of the tape was just slightly wider than the arc length between fins. If applied centered, then it goes partly up onto the fillets. In fact, the tape was just wide enough for the pieces to just touch aft of the fins. So, happy coincidence there. The technique part was as I described before, start with the tape centered and apply the center of the tape first. Then work it forward and back, the to the sides, with your thumbs. While aluminum tape does wrinkle, it is also quite malleable. It can be worked smooth if you're careful and take your time. But it comes from plying it a little at a time, and working from the center out tends to mitigate wrinkling. The tricky part is really making sure you start with the tape aligned the way you want it. I have been able to pull it back up and re-apply it, and smooth it out again. It probably more forgiving than you think.
The bands were applied as if they were wrap decals, so there was trial and error in getting them pulled around straight. I've found some success in using a masking tape wrap as a guide. But as with the other segments, the key seems to me to work from the center of the decal out, pushing it smooth toward the edges.