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How to Re-Caulk a Bathroom

Re-caulking the bathtub, sink and shower is an easy way to fix seals that are broken or cracked, and it will help prevent mold and water damage.


Bath caulking, while making a bathtub, sink and water-proof shower for many, many years, it doesn't last forever. Over time, caulking may become worn, cracked, discolored and contracted, which may eventually cause water damage. Prevent mold, mildew and damage caused by water by keeping the bath accessories. In addition, a new caulking cord can make your space look new.

Clean Tiles and Surfaces

Use a small vacuum to remove excess caulk residue. Moisten a paper towel with alcohol. Use alcohol to clean the debris from the surface of the tiles along where you will need to reapply putty. This preparation work helps ensure a strong connection between the new caulk and the clean tile.

Apply New Caulk or Silicone

Use a utility to trim the edge of the caulking tube and a long, thin nail works well to pierce the blade that seals the tube (picture 1). Use a caulking gun to activate the tube and release the caulk or silicone.


Drag the tip of the gun in a fast motion that matches the speed at which the caulk is emerging (picture 2). If excess caulking appears in certain areas more than others, or some areas only have a fine caulking line, it is still fixed. You will get hang of it if you work slowly.


Clean the tip of the caulking tube after each length. Continue along the perimeter of the tub and shower, working to recaulk all edges.

Clean Excess Caulk and Smooth Lines

To remove more caulking balloons and create uniform lines, immerse your finger in water and corríela through the caulking line to soften it (picture 1). When cleaning every length of the putty still wet; That effectively the most caulking force in the open space between the tiles or between the bathtub and its enclosure. If you use a paper towel on your finger, fold it several times to make sure it is not transferring excess putty on the face of the tiles. If you are only using your finger, clean and remoisten your finger regularly.


If you find a space where you did not apply enough caulking, you may be able to clean the excess of another part of the same seam. If not, apply a new fine caulking cord using the caulking gun and immediately apply with a damp paper towel to melt with the rest of the new putty.


Most calafetadores and silicones have a short adjustment time. Therefore, if the caulk is dried in the surrounding tiles, use a razor blade to mark the edge of the caulk near the original cord and then scrape it clean from the tile face without interrupting the waterproof seal.

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