Question on boat plug replacement?

[dkprofishn]

I'm going to replace my plug flange in my boat and was wondering if I should use rtv or some kind of silicone that u use around sinks, windows , bathtubs, it has some kind of clear stuff on it now just needing some advice thanks.

[LJP]

There is a waterproof silicone that you can use . Made for underwater

[coombro]

There is a waterproof silicone that you can use . Made for underwater

Make sure its 100% silicone.

[Shimano4Life]

Personally, I would use one of two products:

1. 3M FastCure 5200

2. LifeSeal (Above and Below the Waterline)

Both are available at virtually any marine product supplier. I have used both at each dealership I have worked at and have yet to experience any problems with either one. I have used both to seal screwholes for transducer cables and mounts, speedometer mounts, etc., and have also used both to seal mounting holes for engines.

I would use something formulated for marine applications. In other words, don't just go to Lowe's and buy the first tube of silicone that you see.

[coombro]

!00% silicone do the same thing for a lot less. And it's waterproof.

[coombro]

100 % silicone will do the same thing for a lot less. Waterproof too.