caulking between hull and deck

[MichaelB1969]

Hi all, I have a fairly thick bead of caulking around my cockpit where the deck meets the top of the hull. There is some mold growing in the caulk and I would like to remove the old caulking and replace it.

Any suggestions on what type of material I should use? Preferably I'd like something more resistant to mold and mildew.

Thanks!
Mike

 

[RT Firefly]

Greetings,
Mr. M. IF mold is the only issue and the caulk is otherwise in good shape, I'd leave it. You may have to initiate a regime of preventative cleaning but that's a lot easier than re-caulking IMO.

The fact that you do have mold growth suggests you have created a condition where mold is happy to grow. Is the boat stored with a cover or under cover? Perhaps increase ventilation...

 

[FF]

The hull/deck joint is one spot where 5200 works well.

You are only seeing the edge of the joint.

Spray the area , wash it and forgetaboutit.

 

[siestakey]

I agree with RT... To clean moldy caulk use Concrobium wipes I get them from Amazon I am sure walmart has them but I just do not like going in the place

 

[MichaelB1969]

I agree with RT... To clean moldy caulk use Concrobium wipes I get them from Amazon I am sure walmart has them but I just do not like going in the place

I bought the boat this way, and the mold was pretty bad. I hit it with various highly-rated mold/mildew cleaners and they worked pretty well. However, there are still stains that will never go away.

I got a quote for $300 for a guy to remove the old caulk and replace with new. However, I don't know what I want to replace it with.

The caulk isn't performing any mechanical task. It's purely cosmetic.