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Old 04-13-2008, 01:09 AM   #1
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fixing cracked caulking on mdf painted trim


Our house is 5 1/2 yrs old, and with settling and shifting and our drastic change in temperatures here in Canada, the caulking we used on our interior trim has cracked at almost all joints. Our cove moldings are made of drywall, and trim is mostly mdf except where the headers and sills have parts that are paint grade wood [crown molding]. The caulking we used is called White Lightning, which is paintable and acrylic.
This has made things look not great for quite some time now. We are planning on selling and some how it needs to get fixed.
The cove molding is painted in a oil, and the baseboards etc in melamine.
Does anyone know how I can go about fixing this. Its really bad in our master, the cove has separated and pulled some on the ceiling paint with it.
Can I just caulk over the trim areas and paint over the caulk or am I going to have repaint all of the trim? I don't plan on redoing it in melamine. That was a big mistake. Our painters weren't careful and now we have runs everywhere.
I will post pictures and hope you can see clearly enough to help me.
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Old 04-13-2008, 08:19 AM   #2
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fixing cracked caulking on mdf painted trim


Was the molding back-primed?
Regardless...
If your painters left drip all over, I suspect they didn't caulk properly
I'm not that familiar with those types of molding materials, but I suspect you'll need to pull out any caulk that looks bad, re-caulk, and caulk the other areas just like you would for a re-paint

It's unlikely you could caulk and just paint over the caulk and have it look good
But hey, you might want to try...couldn't hurt

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Old 04-13-2008, 09:08 PM   #3
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fixing cracked caulking on mdf painted trim


Quote:
Originally Posted by slickshift View Post
Was the molding back-primed?
Regardless...
If your painters left drip all over, I suspect they didn't caulk properly
I'm not that familiar with those types of molding materials, but I suspect you'll need to pull out any caulk that looks bad, re-caulk, and caulk the other areas just like you would for a re-paint

It's unlikely you could caulk and just paint over the caulk and have it look good
But hey, you might want to try...couldn't hurt
no, the back of the molding didn't get primed. My father, who did all the finishing work did the caulking himself. I've pulled some of the dried caulking off in some areas and it is hard and dried out. Not very flexible. I don't know why there are some big gaps in the corner window sills, as they were glued together, my father is a very accomplished finishing carpenter.
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Old 04-14-2008, 05:26 AM   #4
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fixing cracked caulking on mdf painted trim


When you do Re-caulk,use a better product.............
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Old 04-14-2008, 02:29 PM   #5
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fixing cracked caulking on mdf painted trim


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Originally Posted by mark942 View Post
When you do Re-caulk,use a better product.............
So, do you know what product would be better? This product was supposed to be a better product.
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Old 04-15-2008, 05:49 AM   #6
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fixing cracked caulking on mdf painted trim


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Originally Posted by cinnabon View Post
So, do you know what product would be better? This product was supposed to be a better product.



http://www.dap.com/products.aspx?SubcatID=3

You might want to send your comments and photo here
http://www.wlcaulk.com

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