Filling/painting Joints In Molding - Painting - DIY Chatroom Home Improvement Forum

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Old 10-31-2007, 08:31 PM   #1
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filling/painting joints in molding

I've got a bunch for 8-foot crown molding

It's white vinyl capped, I'm just wondering what's the best way to fill in where two ends meet so I can paint and have the appearance of a long-as-the-room piece?


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Old 11-02-2007, 04:58 PM   #2
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I use latex caulk. Easy to work with, easy to clean up, sticks good, and doesn't seem to crack or swell. I have a few gaps of 1/8" that held up for 10 years now. This was floor molding in a basement which got painted.
If your painting with Latex paint, gaps fill fine with Latex caulk.

Good Luck,
Mike -


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Old 11-14-2007, 08:08 PM   #3
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Why not nice scarf cuts? Caulk seems to shrink too much for me.
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Old 11-14-2007, 09:23 PM   #4
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I recommend a very good, stretchy caulk. Vinyl expands and contracts more than most any (home) material ie: aluminum or wood. Putty, wood filler and even scarf joints won't hold up if there is a temperature change. (scarf joints will "hold up" but you'll be able to see the joint during contraction.)

Apply the caulk, let it dry and inspect it for shrinkage, if you aren't satisfied, then apply it a second time. If you are applying only one coat of paint, be extra prudent about wiping the excess caulk so it won't show through the paint.
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Old 11-18-2007, 02:20 PM   #5
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Painter's Caulk is great for crown molding and baseboards but not for nail holes or gaps as it tends to shrink just a bit and sit below the finish, making it visible. I've had success with non-shrinking vinylized spackle. It comes in a can and it dries reasonably quickly. If you wet a finger after it's dried a bit, you can smooth the surface of it to where it will blend in and be unnoticeable.
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