Proper sealant for clearance lights?

[Fugitive861]

I want to replace my front Amber clearance lights but I'm not sure what product to use to seal between the base of the light and the fiberglass front cap. Proflex? Dicor nonsag sealant? Thanks for any advise.

[Ray,IN]

Either one will work, but many campers only have the foam backer there. I once had water damage to a 5er because water leaked into the wall via the wiring hole in the front cap. Water had collected inside the lens, then - because the light was sealed tight to the cap- water filled the lens to the wiring hole the followed the wiring into the wall.
I solved that by drilling a 1/8" hole in the bottom of each light lens.

[Chuck_Hammer]

1/8 inch hole.. AND to reduce water entering light housing..

I use clear synthetic grease, around body where lens make contact, and then install lens. wipe off excess.

I was lucky, no wall damage. I had to replace all 14 side marker lights (running lights).. fading/cracks/water.... 10 year old trailer.

but for Base to Wall, any good exterior sealer. not the poor gasket stuff that came with original.

[chuckbear]

I have rebedded ALL of mine with butyl tape. Hurricane Hermine just passed us with tropical downpours for many hours and 50 MPH winds overnight. No apparent leaks and we have checked pretty thoroughly today. Chuck

[barmcd]

I used the Dicor nonsag sealant and haven't had any problems so far.