How long does caulk take to dry before sanding

Caulk seals seams and cracks around the home and keeps them waterproof.

Before painting or using the area, you'll want to know how long it takes for caulk to dry.

Caulk takes two to four hours to dry before painting and is fully cured in 24 hours.

Caulk Drying vs.

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Curing

After application, caulk progressively reaches three stages of drying: tack-free, paint-ready, and fully cured.

• Tack-free: In 30 minutes, caulk is tack-free. Tack-free means that the caulk has developed a thin outer skin.

  It is dry to the light touch but cannot be painted yet.

• Paint-ready: Most caulk is ready to be painted in two to four hours. However, it has not fully dried through by this time.
• Fully cured: In 24 hours, caulk is fully cured.
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  It has become solid and dry from top to bottom. Some caulk may take up to three to seven days to fully cure.

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