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Old 12-29-2008, 05:39 PM   #1
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Painting over blackboard paint


Hi - Looking for some help please.

I have painted over some beams in my house previously painted with what i believe to be blackboard paint Before painting i removed as much of the black as possible.

I have used standard multi service primer but it seems to be reacting, turning brown and cracking where there was residue black underneath.

Any ideas? Thanks

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Old 12-29-2008, 11:26 PM   #2
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Painting over blackboard paint


The problem is your choice of primer. To often the paint manufactures in trying to make a multiuse primer make a primer thats decent at a multitude of tasks but not great at any.

Try washing again to remove any residue, then prime using Zinsser's BIN

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