Does anyone know what this is? We are painting the wood paneling and wood trim and molding in our house.

Question

We have painted Latex Kilz primer on the all the areas and two coats of latex paint and these spots started coming through.

Tri-Lite Builders ~ Homework Remodels · Answer

Is this a wall or a ceiling? When did it first appear? Did it appear after a rain? Is this wood and was it painted before?

Kory S · Answer

It is a stained wood trim that was just recently painted.  It was wiped down with de-glosser, primed and then painted.  No, it didn't appear after a rain.

Donna McCrummen · Answer

Looks scary, maybe you should have used Bin Zinser (sp) alcohol based primer. It is lethally stinky but I used it to seal old cedar paneling in my family room. It only needed two coats of paint on top of that.

Peace Painting Co., Inc. · Answer

It looks like tannin bleed which is the resins in the wood.  Shabby Daze suggestion is your best shot.  However it will be harder to seal now that you have three coats of other paint.  So it may take two coats of BIN.
Best, Charles

Tri-Lite Builders ~ Homework Remodels · Answer

I'm in  agreement with Shabby Daze & Peace Painting. Cedar can be difficult.

Woodbridge Environmental Tiptophouse.com · Answer

When I first saw the photo it looked like a metal shower wall that has rusted. Sounds as though you need to remove the finish and re-prime let dry and then repaint.  Cedar has its own oils that can easily bleed through if not properly prepped.

Kory S · Answer

Thank you for the replies.  We are going to try the primer you mentioned.  I will let you know how it goes.

Donna McCrummen · Answer

Please Kory get a respirator. A good one. Contractor grade at the paint store. It is well worth the money not to get sick. Trust me this stuff is brutal. But it Will work.

Peace Painting Co., Inc. · Answer

Great advice Shab.  You don't get used to the chemicals, just more sensitive.

Nichter's Home Services Corp · Answer

The Bin is the answer but it is just alcohol odor.

HandyANDY - Handyman & All Repairs, LLC · Answer

Try Zinser Coverstain..it's an oil-based primer...one coat will typical prevent tannin bleed-through which is what this appears to be.  You do want to use a respirator and crack a window and it will stink the inside for a bit.  You don't have to remove the previous finish coat...just prime it, let it dry and spot prime again over any lingering troublesome areas.  LUCK!

Kory S · Answer

Thank you for all your replies.  The BIN Zinsser did the trick.  Thank you!

Donna McCrummen · Answer

I'm so glad it worked for you Kory.

Glenda H · Answer

Can you share a picture of the new and improved finished project?

Kory S · Answer

Sorry!  I have been out of pocket for a bit.  The primer worked great!  Here is a picture after the primer and paint.

Donna McCrummen · Answer

Beautiful finish!

Peace Painting Co., Inc. · Answer

No mystery there.  That was an easy one.
Nice job.
CP

Glenn C · Answer

It the sap bleeding through the paint from the wood. The only way to get rid of it is replace the wood. Its poorly dried wood or not dried it all.

Glenn C · Answer

Yes, it worked for now. Just wait 30 days. It will reappear.

Maribeth Merton · Answer

I hope Mr. SUNSHINE is wrong, and it works perfectly! The only thing wrong with DIY is when you have to DIY it OVER! My fingers are crossed for you!

Marion Nesbitt · Answer

Old fashioned shellac will seal just about anything. Then prime and paint.

Debbie · Answer

My concern is , what is behind that wall ? Chimney ? If that is a chimney wall , it is Creosote soaking through and needs inspected .

Janet M · Answer

I don't know what it is but the Latex Kilz does not work. I have tried it a couple of times and it didn't work and I have had many people tell me not to use it because it doesn't work. The oil based Kilz is wonderful and covers everything even smoke. You may have to repaint using the oil based. Good luck. I love painted paneling.

Sue A. Stevens · Answer

Whenever & I do mean WHENEVER I have to seal an issue, I always use, I mean I ALWAYS use Bin Zinsser Shellac base, It does have an odor, but never have to have a RE DO :( I have used it for 30 years, just ventilate area. No matter what the others promise, never have I been disappointed in using it, 
A little more cost, but SO WORTH IT ;)

Jackie Johnson · Answer

Zinsser BIN primer is so tough it is acceptable as a cover for lead-based paint as opposed to taking down sheetrock or plaster that has been painted in it. It was a home inspector who told me about it lo those many years ago, and I've used gallons of it since then. If it can prevent lead in paint from leeching through I'd think it would work on whatever is coming from wood on a cabinet that was made nearly a hundred years ago. Glenn C You seem awfully quiet on the topic. This was first posted in March of 2012; I think your thirty days have passed, yes?

Nancy L Sires · Answer

Could be the glue they use on wood paneling

Joan · Answer

my guess is blood

Amy · Answer

We did all the paneling in out place but I read up first and knew about this issue. You HAVE to use the smelly oil based stuff no way around it, except to take paneling down I guess. Be prepared to steer clear of the room and leave all ventilation sources for the room open a couple days

Jane Heath · Answer

I have to agree, it is the sap bleeding through. Sorry. You will have to replace it. Jane Alton, Il.

Eileen Hall · Answer

Kory S, we bought a home built in 1986. The owners didn't seal or paint the woodwork. After 20+ yrs of heavy cigarette smoke we bought it.e. We liked the patina until we decided to paint the sunroom. It took 2 coats of paint, 3 coats of Kilz and it still bled through.I was ready to replace the wood when I was told about Zinnser BIN primer. It took ONE coat and covered beautifully. We put latex paint on over this and it is now 7 years later and there is no bleed through. Zinnser BIN is really the best primer around.

Does anyone know what this is? We are painting the wood paneling and wood trim and molding in our house.

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Does anyone know what this is? We are painting the wood paneling and wood trim and molding in our house.

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