how long to wait before painting over calk

Old 10-14-13, 08:14 AM
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how long to wait before painting over calk

hello, in conjunction with my current job

i filled some gaps in my wood porch with DAP alex plus calk
the label states wait two hours before painting, it sat overnight but it still seems soft where it was applied deeper. is it safe to paint over it while slightly soft or will this compromise the job

Old 10-14-13, 08:48 AM
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It depends on how thick it was applied, and the conditions it was applied in. I seem to remember you're in NY state (can't see it while I'm typing this). I'm almost at the same latitude and we're getting fairly cool nights which will slow down the dry time. Might consider letting it sit for another day if it's still feeling soft.

That might be overkill, but I'd rather it cured properly before sealing it with a coating of primer on top
Old 10-14-13, 10:23 AM
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The biggest issue with painting over uncured caulking is the paint will dry and the caulk shrinks a little as it dries resulting in fine cracks in the finish. As Bill stated, cool and humid temps will slow [sometimes stop] the curing process.

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