Skim coating a wall is a technique used to create a smooth surface, often before painting or wallpapering. Here’s how to do it: 1. Prepare the wall: Clean the surface and repair any cracks or holes. 2. Apply a bonding agent: This helps the joint compound adhere better. 3. Mix joint compound: Use a pre-mixed or powder joint compound and follow the instructions. 4. Apply the first coat: Use a wide drywall knife to spread a thin layer of compound over the wall. 5. Let it dry: Allow the first coat to fully dry (usually several hours). 6. Sand the surface: Lightly sand any ridges or bumps. 7. Apply additional coats: Repeat the process, applying 2-3 coats as needed for smoothness. 8. Final sanding: Sand the wall until completely smooth. 9. Clean and prime: Wipe down dust and apply a primer before painting. Always wear a mask and goggles while sanding to protect yourself from dust.
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