Prior to installing the antenna to the fuselage allow the SLGFR to gel up, gel time is 15 to 20 minutes at 77 degrees F or 25 degrees C. Here's a link to our Self-Leveling Green product page: avdec.com/products/injectable-sealants/self-leveling-green
I'm a NAVAIR Corrosion Maintenance Readiness Team representative out here on Okinawa. I have been trying to raise awareness of Av-Dec products like self-leveling green, Hi-Tak Tape, gaskets, and connector wraps for our aircraft out here.