This article was reviewed by Barry Zakar and by How.com.vn staff writer, Hunter Rising. Barry Zakar is a professional handyman and the founder of Little Red Truck Home Services based in the San Francisco Bay Area. With over ten years of experience, Barry specializes in a variety of carpentry projects. He is skilled at constructing decks, railings, fences, gates, and various pieces of furniture. Barry also holds his MBA from John F. Kennedy University.
There are 11 references cited in this article, which can be found at the bottom of the page.
This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources.
This article has been viewed 3,526 times.
When you want to avoid getting drywall dust everywhere during a repair, wet-sanding with a sponge will catch all of the particles before they get in the air. Wet-sanding uses a damp sponge to soften drywall mud (joint compound) so it’s easier to smooth out. All you have to do is wet a specialty sanding sponge and gently rub the abrasive side in circles over the mud. Whether you’re installing new drywall or patching a hole, keep reading and we’ll walk you through how to wet-sand the drywall mud so it has a smooth, even finish.
Things You Should Know
- Wet a sanding sponge with warm water and wring it out completely.
- Rub the coarse side of the sanding sponge against the most raised areas using circular motions. Rinse and wring out the sponge when it’s dirty.
- Feather out the drywall mud using the sponge’s smooth side to flatten the surface. After 2 passes of wet-sanding, let the drywall dry completely.
Steps
How to Wet-Sand Drywall
- Dampen a sanding sponge in warm water. Sanding sponges have a coarse abrasive side and a smoother, softer side. Fill a large bucket ¾-full with clean warm water. Dip the sponge in the water so it gets completely saturated. Then, wring the sponge out until it isn’t dripping water anymore.[8]
- If you’re only sanding a small area after repairing drywall, then a standard kitchen sponge may work.
- Wait for the drywall mud to dry completely before wet-sanding. Check the packaging to find the dry time because it varies between products and the size of the repair.
- Sand high spots with the sponge’s coarse side. Start working where there are obvious raised edges or peaks of drywall mud. Hold the coarse side of the sponge flat against the drywall and apply gentle, even pressure. Move the sponge in tight circular motions slowly across the drywall mud. When the sponge starts looking dirty, dip it in the water and wring it out before continuing.[9]
- Flatten the surface with the sponge’s smooth side. Flip your sponge over to the softer side and rewet it, making sure to wring out all the excess water. Start in the middle of the drywall mud and apply gentle pressure. Work towards the edges of the drywall mud using circular motions so it blends smoothly into the drywall.[10]
- Only do 2 passes of wet-sanding over the drywall mud because wetting it anymore could soften it too much and create an uneven surface with pits and valleys.
- Allow the drywall mud to dry completely. When you moisten drywall mud, it softens and becomes slightly pliable again. Leave the drywall mud alone to dry, which may take a few hours or up to a day. Check on the drywall mud’s color periodically, to see if it has a consistent and even color. If you still see darker moist spots, leave it to dry for longer.[11]
- Use 120-grit sandpaper to flatten leftover raised areas. When the drywall mud is completely dry, check if there are still any high spots you couldn’t smooth out with the sponge. Put on a dust mask and safety goggles to protect yourself from any dust. Rub the sandpaper gently over the raised areas using circular motions. Once you have a smooth surface, you’re set to finish your drywall with paint.[12]
- Cover any vents with plastic film and keep windows open to help get rid of and clean up drywall dust.
- If you see dents, scratches, or nicks, fill them in with more drywall mud.
Expert Q&A
Video
Tips
Warnings
- Avoid pressing the sponge too hard against drywall mud because you may create depressions or craters.Thanks
References
- ↑ https://www.woodsmith.com/review/sanding-drywall/
- ↑ https://www.usg.com/content/dam/USG_Marketing_Communications/canada/product_promotional_materials/finished_assets/cgc-construction-handbook-ch05-finishing-drywall-systems-can-en.pdf
- ↑ https://www.housedigest.com/1310570/how-wet-sanding-help-prevent-drywall-dust-build-up/
- ↑ https://tooldigest.com/wet-sanding-drywall/
- ↑ https://rcacontractors.com/drywall-sanding-tips-from-a-professional-contractor/
- ↑ https://www.woodsmith.com/review/sanding-drywall/
- ↑ https://www.dreamlandsdesign.com/how-to-sand-drywall/
- ↑ https://www.usg.com/content/dam/USG_Marketing_Communications/canada/product_promotional_materials/finished_assets/cgc-construction-handbook-ch05-finishing-drywall-systems-can-en.pdf
- ↑ https://todayshomeowner.com/walls/video/drywall-sponge-sanding/
- ↑ https://youtu.be/RKuMMvy3sME?t=293
- ↑ https://todayshomeowner.com/walls/video/drywall-sponge-sanding/
- ↑ https://www.usg.com/content/dam/USG_Marketing_Communications/canada/product_promotional_materials/finished_assets/cgc-construction-handbook-ch05-finishing-drywall-systems-can-en.pdf
- ↑ https://rcacontractors.com/drywall-sanding-tips-from-a-professional-contractor/
- ↑ https://www.housedigest.com/1310570/how-wet-sanding-help-prevent-drywall-dust-build-up/
- ↑ https://youtu.be/F4JUOP4BaE4?t=518
About This Article
Did this article help you?
⚠️ Disclaimer:
Content from Wiki How English language website. Text is available under the Creative Commons Attribution-Share Alike License; additional terms may apply.
Wiki How does not encourage the violation of any laws, and cannot be responsible for any violations of such laws, should you link to this domain, or use, reproduce, or republish the information contained herein.
- - A few of these subjects are frequently censored by educational, governmental, corporate, parental and other filtering schemes.
- - Some articles may contain names, images, artworks or descriptions of events that some cultures restrict access to
- - Please note: Wiki How does not give you opinion about the law, or advice about medical. If you need specific advice (for example, medical, legal, financial or risk management), please seek a professional who is licensed or knowledgeable in that area.
- - Readers should not judge the importance of topics based on their coverage on Wiki How, nor think a topic is important just because it is the subject of a Wiki article.