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Diagnose Water-Based Primer Failure on OSB

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Don’t use water based primer on osb #diy #tools #home

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What happens here

The video begins with the presenter showcasing a wall made of OSB (Oriented Strand Board) that was improperly primed with a water-based primer. He points out and physically demonstrates the resulting defects, which include a rough and uneven texture, visible staining (likely from the wood's tannins and resins bleeding through), and bubbling. He explicitly states that this is what happens when water-based primer is used on OSB, emphasizing that the wall is not sealed correctly.

Goal: Identify and understand the problems caused by incorrect primer application on OSB.

Tools and materials

  • OSB Wall Unspecified — The surface exhibiting primer failure, requiring rectification
  • Water-based Primer Valspar — The cause of the current wall issues, visible in the beginning of the video on a can

What they say

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I know that this looks bad. This is exactly what happens when you use water-based primer on OSB. This is exactly what I'm dealing with. Rough, uneven, just not sealed right. It's staining, it's bubbling. That's what happens when you use water-based paint. Is this done? Absolutely not. It still needs another coat and it needs your top coat, probably two coats of top coat. But, I want to correct this issue before I go any further. This is a

Auto-generated from the video audio.