How does the inside of waterproof air dry caulk dry?

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If some caulks dry by exposure to air but are waterproof when dry, what keeps the caulk from forming a shell causing the inside of it to stay sticky?

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2 Answers

Anonymous 0 Comments

Most silicone calks are moisture cure. There is moisture in the air. You can also mist it with water to speed up the curing. Read the ~~tune~~ tube.

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