While I had the sealer out I decided to install the Transponder Antenna and the ADS-B In antenna. They look the same, but frequencies are different. I use the sealer to make them waterproof on the outside. Recall I had already prepared ground plates inside the fuselage for them.
I used tape to keep the sealer from running wild, but I didn't really have to. My finger did a good job of rubbing in a nice fillet of sealer around the base of the antenna. And it dried clear. I could paint these but data says these antennas do better without paint. So not painting them.