I've had 20 years of good luck using 3M™ Urethane Seam Sealer to fill overlapping panel lines and even hid hard rivets on my RV-6. This stuff is easy to use, doesn't shrink and remains flexible. Can be thinned and blended using reducers. Available at most auto body paint stores. It's very paintable after curing.
RV-6 / 180 CS
Airwave Pulse Hang Glider
STEM RV-12is Building Mentor
Stoney Point Field - 6GA0 Atlanta, GA
2022 VAF Dues Paid