Apply Second (Floating) Coat of Joint Compound
11:47
17:47
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At 11:47 in
Building a Bonus Room + SOUNDPROOF WALLS || Concrete Slab House Reno (Ep.11)
What happens here
After wet sanding, a second (and potentially third) coat of joint compound is applied. This coat, known as 'floating,' uses a wider taping knife (e.g., 8-inch after a 4-inch first coat) to feather out the seams and blend them seamlessly with the surrounding drywall. For this step, the video uses 'hot mud' (fast-setting joint compound), mixed with water to a 'runny ketchup' consistency using a drill mixer. Hot mud sets quickly, allowing for faster recoating, but requires quick application. The rounded edges of the bullnose trim are also floated to create a smooth transition.
Tools and materials
- Bucket
- Drill Mixer
- Ladders
- Mud Pan
- Taping Knife (8-inch or wider)
- Water
What they say
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What they say
(823 characters)Auto-generated from the video audio.