How to Skim Coat Wall Board

While wallboard may appear to have a smooth finish, upon further inspection you will find it is covered with a series of small "x's" or cross-hatch marks, giving it a rougher texture. After the joints are mudded and taped, this design becomes even more apparent. Instead of leaving this rough texture, use a skim coat to provide a more finished look for the wall's surface. Most supplies for this project can be purchased at a home improvement store. Assemble all supplies before starting this project, and plan on a few hours for completion.

Things You'll Need

• All-purpose joint compound
• Water
• Bucket
• Drywall trowel
• Fine-grade sandpaper
• Sanding block
• Clean, soft cloth

Instructions

Process

1. Thin out the joint compound with a little bit of water in a bucket. Do not make it too thin. It should have about the same consistency as gravy or sauce.

2. Put a small amount of joint compound on the trowel.

3. Hold the trowel at a 45-degree angle to the wall and start applying the compound. Work from one corner down, covering across as you go.

4. Remove any excess joint compound from the trowel and repeat the process until you have covered the entire wall. Aim for an even application of the compound.

5. Allow to dry for at least two to four hours.

6. Wrap some fine-grade sandpaper around a sanding block and lightly sand out imperfections in the wall.

7. Remove dust from the wall with a slightly damp and soft clean cloth.

References

• "The Complete Guide to Painting and Decorating," Bryan Trandem, Creative Publishing, 1999.