How to paint over silicon rubber sealant?


Old 06-28-04, 09:36 AM
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How to paint over silicon rubber sealant?

Hi, how do you paint over 100% silicon rubber sealant?
I had smeared it in the corners of my bathroom, getting some on already painted walls and trim, thinking I can just paint over it.
That's not the case - it's not paintable - the paint is just collecting into bids. It's hard to remove the white stiff - I can scrape it with the towel and it would come off a little, but not much.
I would like to paint over it to cover it up. Latext paint is not working for this stuff. Anyone had experience with this?
Thank you very much,

- Inga
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Old 06-28-04, 10:23 AM
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100% silicone caulk or sealant will not take paint of any sort. It is quite difficult to remove 100% silicone caulk completely.
Old 06-28-04, 03:34 PM
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The silicone can be primed with an alkyd primer, and that will allow it to be painted with latex. The silicone will 'bleed' oil for a long time tho so you should cut away any excess before priming and painting.

I should also add that you would want to wipe it down first with mineral spirits or paint thinner to rid it of surface oils. do this before priming.

Last edited by prowallguy; 06-28-04 at 05:39 PM.
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