caulking

I have a Keystone camper and they state to use dicor on roof surfaces and silicone for sides and all other seams on the rv. Proflex I have found to be very difficult to work with as it comes out of the tube tacky and hard to smooth with your finger, and is very sticky. I can make a nice smooth line with white or clear silicone. However I will use proflex in place of putty tape if i am installing trim moldings, exterior lights, or windows where I don't need to worry about a nice looking bead. Many folks on here won't like silicone, which is fine, but as long as it is not used on roof surfaces it is fine to use.