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That Beast Mode

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Yes, but that doesn't really seal (and would take ~5 cans just for the outer surface). Had also considered just going with rattle can bed liner. OSB needs a coat or two of oil based primer like Kilz shoved in the cracks with a stiff bristled brush followed by top coat of exterior paint.
Which I wasn't going to do until I had some actual test data. Paint costs more than the wood. It's a process, not a product.
Get a gallon of rhino liner and a paint roller, it'll seal that thing right up.
 


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mongo

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Get a gallon of rhino liner and a paint roller, it'll seal that thing right up.
Yah, an $80 gallon of Rust Oleum would do a coat, but that wasn't worth it to us before testing if it worked. Other issue is it's water based which might destroy the OSB. They do make an oil based bed paint, but it's out of stock.
 
 








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