painting over silicone caulk?


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Old 09-15-20, 12:27 PM
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painting over silicone caulk?

The a/c installer used silicone inside to hide a gap between wall and his tube run ( vinyl raceway enclosure).
Can this be painted? If not, is there anything I can do?

I have not tried to paint it yet, but it will soon come up as we paint our way thru the house. Oh such fun!
 
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Old 09-15-20, 03:18 PM
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You have to give it a couple coats of Zinsser BIN pigmented shellac primer. Then it will hold paint. Would have been better if he didnt use silicone.
 
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Old 09-16-20, 02:16 AM
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I agree, pigmented shellac dries quick enough so the primer doesn't have time to crawl. After a few coats of BIN the silicone should be covered and your paint will adhere to the BIN.
 
 

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