Originally Posted by mark.g
The dicor up top is good. I think I nailed down the last water entry point to the roadside front marker light. It has a clear sealant around it but it there is a section on top that has been compromised. Is this just clear silicon caulking or something else?
That's a common issue and not only with F.R. products. The caulking around the light is just the first line of defense. The main seal is supposed to be butyl tape under the light. Now days it tends to get skipped either by intent or just missed. You can get more water in one of those lights than you think, especially on a front curl of other sloped surface.
Even when they are sealed correctly, water can sometimes get past the lense on the cheap fixtures and chase the wiring through the body of the light itself.
A lot of manufacturers are going to silicon sealants, the only way you can be sure what they used is ask them. If it is silicone it will be "neutral cure" and not "acetic cure". Acetic cure is what you find at the big box or ace hardware that smells like vinegar, you don't want to use that. Neutral cure is the s$#t.......It can only be found at commercial supply houses, glazing supply, online, etc.