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To properly apply new caulking over old caulk for a seamless and effective seal, you should first clean the area thoroughly to remove any dirt, debris, or old caulk residue. Next, use a caulk softener or remover to soften the old caulk and make it easier to remove. Once the old caulk is removed, apply the new caulk in a smooth and even bead, making sure to press it firmly into the joint. Finally, use a caulk tool or your finger to smooth out the caulk and create a seamless finish.

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4mo ago

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