What do you paint OSB with?

Tips for Painting OSB Prime with two coats of an oil-based primer such as Kilz Complete or Sherwin-Williams ProBlock. Roll on the primer and paint rather than spraying the paint. Leave as many panels uncut as possible to preserve the factory edges. Click to see full answer. Consequently, what kind of paint do you use on OSB?If your OSB panels are used indoors, an acrylic latex primer will be an ideal base coat because it’s so easy to work with. Latex primers are fast-drying, so they can be painted over in as little as an hour.Secondly, which side of OSB board goes out? Answer. OSB roof panels should always be installed with the grade stamp facing into the attic and the screened surface (with the nail guide lines) facing up. Besides, can I paint OSB for exterior use? Seal both sides of the OSB and the joints with a quality waterproofing primer. Paint the OSB with two coats of a premium exterior topcoat. Use a topcoat that will stand up to the weather in your area. OSB will fare much better when painted with a paint that protects it from the elements.Do you have to Prime OSB before painting?OSB’s open strands readily absorb paint, requiring two coats at a minimum but more likely three coats. Older OSB will be especially porous, requiring several coats of paint plus primer. Particularly old OSB that is beginning to fall apart cannot be painted; the paint will not help glue the OSB together.