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Stesso

Prime the Prepared OSB Surface

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Day 1 of renovating my garage

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What happens here

Once the OSB surface is completely smooth, clean, and dust-free after all mudding and sanding iterations, apply a high-quality primer. For OSB, an oil-based primer or a high-hide PVA (polyvinyl acetate) primer is strongly recommended. These types of primers are effective at sealing the porous wood chips of the OSB, preventing uneven paint absorption, and creating a uniform, adhesive base for the topcoat. Apply the primer evenly with a paint roller for large areas and use brushes for cutting in around edges, windows, and corners. Allow the primer to dry thoroughly according to the manufacturer's instructions before proceeding.

Goal: Seal the OSB and create a uniform, adhesive base for the topcoat paint.

Tools and materials

  • Drop Cloths — Protecting floors and furniture from primer drips
  • Paint Brushes — Cutting in edges, corners, and around fixtures
  • Paint Roller — Applying primer to large wall areas
  • Paint Tray — Holding primer for roller application
  • Painter's Tape — Masking off trim, windows, or adjacent surfaces not to be primed
  • Primer — Sealing the OSB surface and providing an even base for paint

What they say

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this. If you don't prep this wall, it's actually going to make this worse. You need to clean it really well, pound in all your nails and your staples or pull them out, then go ahead and seal your seams, sand it down, and then prime and top coat. I'm going to be taking this wall from this to over the next week. If you don't want your OSB turning out like trash, follow along.

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