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Old 08-16-2013, 10:55 AM   #1
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ABSOLUTE BEST mold proof caulk? Is there one?


I keep getting the black moldy stain on my caulk joints in the shower and where the sink and backsplash meet.

Granted, I am in Miami, FL the humidity capital of the world so that helps the mold out .

I have read and tried those vinegar, Oxiclean products and they work for a day or two and the moldy crap returns.

I am going to remove all the moldy caulk again and redo new ones this weekend. I see some tubes that says MOLD PROOF. Do those really work? I don't remember what I had before.

Is there an absolute best mold proof caulk I should buy?

also, is silicon or latex better for such application - wet areas inside shower or bottom of backsplash.

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Old 08-16-2013, 12:07 PM   #2
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ABSOLUTE BEST mold proof caulk? Is there one?


I also live in Fla. and I use caulk for baths and haven't had any problems. sounds like you aren't moving any air in there. Do you have an exhaust fan? If you do take a piece of toilet paper and make sure it is drawing. Try leaving it on awhile longer after your shower. If in your area like a lot of Fla. code says an exhaust fan or a window in the bath. If you don't have a fan just a window you need to install one.

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Old 08-16-2013, 10:03 PM   #3
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ABSOLUTE BEST mold proof caulk? Is there one?


There are wet are specific silicone caulkings, however, if anything stays wet for long enough...it will grow.

Whats the ventilation like in there? Are you running bath fans?
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Old 08-17-2013, 12:22 AM   #4
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ABSOLUTE BEST mold proof caulk? Is there one?


There are bathroom caulks with mildicides and such in them. They are pricey but your paint store should be able to get them.

One challenge I think you are facing is you may have mold spores hiding behind what you are trying to caulk and up under the tile where you cannot see anything. Pure silicone will just make that situation worse if you cannot kill of the behind the scenes characters in this.
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Old 08-18-2013, 09:05 PM   #5
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ABSOLUTE BEST mold proof caulk? Is there one?


I haven't found anything that can be just left on for years without getting discolored or moldy. I recaulk my tub/shower enclosure every year with 100% silicone. It is easier to remove than latex and keeps it looking good.

Last edited by Larryh86GT; 08-19-2013 at 08:27 AM.
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Old 08-18-2013, 09:20 PM   #6
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ABSOLUTE BEST mold proof caulk? Is there one?


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Originally Posted by Larryh86GT View Post
I haven't found anything that can be just left on for years without getting discolored or moldy. I recaulk my tub/shower enclosure every year with 100% silicone. It is easier to remove than latex and keeps it looking good.

You got to be kidding!!!
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Old 08-18-2013, 09:34 PM   #7
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ABSOLUTE BEST mold proof caulk? Is there one?


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sounds like you aren't moving any air in there. Do you have an exhaust fan?
Yep. This could be the main problem. And if you do have a fan, is it really pulling air from the areas that get moldy. i.e is the fan mounted directly in front of the door, so that it mostly just pulls air from the hallway? Is your shower maybe built-in, with no air flow out the top?

All "kitchen and bath" caulkings have a mildewside in them, but the label will say they are mold resistant, not mold-proof.

Last edited by SPS-1; 08-19-2013 at 08:34 AM.
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Old 08-19-2013, 08:23 AM   #8
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ABSOLUTE BEST mold proof caulk? Is there one?


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You got to be kidding!!!
Nope.
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Old 08-19-2013, 05:52 PM   #9
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ABSOLUTE BEST mold proof caulk? Is there one?


mold proof caulk? Is there one?

NO

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