How to Avoid Mildew Regrowing Under New Caulking
Caulk is used to seal the areas around bath and kitchen fixtures. Excessive moisture can cause mildew to grow under the caulk and eventually make its way to the surface. Although caulk appears to be solid, it has a level of porosity that allows mildew to grow right through it. Mildew growth makes caulk appear dirty and discolored and no amount of surface cleaning will remedy the situation. The best way to avoid a regrowth of mildew under new caulk is to keep the area clean and dry. Does this Spark an idea?
Things You'll Need
- Caulk remover
- Utility knife and extra blades
- Needle-nose pliers
- Bleach
- Sponges
- Caulk
- Caulking gun
Instructions
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Remove all old discolored caulk. Once mildew has grown inside of the caulk, it must be replaced. Apply a commercial caulk remover and follow the manufacturer's directions.
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2
Use a sharp utility knife to scrape out any remaining caulk. Pull out large pieces of caulk by gripping it with a pair of needle-nose pliers. Check all crevices to make sure all of the old caulk is removed.
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3
Clean the area thoroughly with a 50/50 solution of bleach and water to kill existing mold and mildew. Clean and thoroughly dry the area before proceeding.
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4
Apply a thin bead of caulk along the area. Wet the tip of your finger and smooth it along the caulk with even pressure to press the caulk down, keeping the open area completely sealed. Add more caulk if necessary, wiping off the excess after smoothing with your finger.
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Allow the caulk to dry for the amount of time recommended by the manufacturer before using the sink or tub. This usually takes up to 24 hours.
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Improve air circulation in the room to prevent moisture buildup. Turn on the exhaust fan when the sink, shower or tub is being used. Leave the door open when the room is unoccupied. Leave shower curtains open. Wipe down showers, sinks, and tubs after use.
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Tips & Warnings
Choose a caulk that contains a mildewcide and choose the right type of caulk for the job.
References
- Photo Credit IT Stock/Polka Dot/Getty Images
