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Old 10-23-2012, 12:57 AM   #1
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Sealing pine knots before painting


I am going to be painting some exterior knotty pine siding and want to seal the knots so they do not bleed through. I am going to use a shellac based primer to spot prime the knots, then a coat of latex stain blocker primer on the entire surface before my finish coat. Will this do the trick? Any other sugestions for sealing the knots?

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Old 10-23-2012, 01:11 AM   #2
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Sealing pine knots before painting


If you just used shellic on the knots then the shellic based primer you would save a step.

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Old 10-23-2012, 04:40 AM   #3
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Sealing pine knots before painting


Good to go, despite what Mr, Joe says.
Bin is not an exterior primer, it IS OK to spot prime with

Last edited by chrisn; 10-23-2012 at 04:43 AM.
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Old 10-26-2012, 08:40 PM   #4
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Sealing pine knots before painting


XIM 400 for exterior
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Old 10-27-2012, 04:34 AM   #5
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Sealing pine knots before painting


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Originally Posted by smalpierre View Post
XIM 400 for exterior
XIM is a fine primer but not labeled for sealing pine knots
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Old 10-27-2012, 11:04 AM   #6
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Sealing pine knots before painting


Shellac is what you want for the knots but my next step would be a full coat of oil primer.

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