Which type of primer to use on new T&G planks?

JbrigMarch 6, 2009

We are about to install tongue and groove (pine) beadboard planks in our small powder room. It will be painted. I know from reading here that I should backprime. The wood is primarily clear, but there are some planks w/ knots that we may have to use. Is there any need to prime and/or backprime everything w/ Zinnser BIN or can I just use the BIN spray primer over the knots and then go ahead w/ BM Fresh Start Acrylic primer? Or should I use something else besides the Fresh Start?

I will also need to spackle over these knotholes--after I prime (correct?). I have some DAP sandable/paintable spackling (the kind that goes from pink to white as it dries). Is that suitable or is there something else that would be better?


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You can probably get away with just spot priming the knots. Fresh Start is fine. I have never used the DAP spackling but not all things are sandable as marketed. I just use regular drywall mud after priming to fill holes, knots, flaws, etc. The DAP would be fine though as long as it is truly sandable.

    Bookmark   March 6, 2009 at 2:38PM
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Thanks so much, paintguy. One more question... when I sand, what grit(s) should I use? And should all sanding be done before priming? (Ok, make that 2 questions :-) )

    Bookmark   March 7, 2009 at 3:06PM
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I would use 150 grit or a fine/medium sanding block. Since the primer will raise the grain in the wood and make the surface rough, you will need to sand after primer no matter what. I would prime everything first, patch, sand and then apply finish coat.

    Bookmark   March 7, 2009 at 3:31PM
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