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Stesso

Pre-fill Large Gaps with Setting-Type Joint Compound

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4 things to do before taping drywall

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What happens here

Before applying tape, pre-fill all large gaps and imperfections. This includes the chamfered butt joints, screw holes, and any accidental holes or significant damage to the drywall. Use a setting-type joint compound, such as SHEETROCK Easy Sand 45. Mix a small amount of the powdered compound with clean water in a mud pan until it reaches a consistency similar to peanut butter. Apply the mixed compound using a 6-inch joint knife, pressing it firmly into all gaps and recessed areas. This compound hardens quickly (45 minutes for Easy Sand 45), minimizing shrinkage and providing a stable base for subsequent taping and finishing coats.

Goal: Fill all large gaps and imperfections for a smooth, stable surface

Tools and materials

  • 6-inch Joint Knife — Mixing joint compound and applying it to gaps
  • Mud Pan — Mixing and holding joint compound
  • Clean Water Tap water — Mixing with the powdered joint compound
  • SHEETROCK Easy Sand 45 SHEETROCK — Pre-filling gaps and butt joints

What they say

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butt joints just like this. Before you tape, you're going to want to prefill all your large gaps. So, your butt joints, any holes you may have in your drywall, whatever the case is, if you want to put easy sand 45. 45 is just how many minutes you have to work with this stuff. Pour a little bit in here. Now, go ahead and get yourself some clean water. Take your 6-in knife and just mix it up. Here's the consistency I got. Like a peanut butter type consistency. Go ahead and just fill your butt joint. And if you do your butt joint right, you should have no wobble at all. All right, so I went ahead and I prefilled a lot of these areas. Um this drywall is super wavy from hanging on the ceiling for 25 years, so I had to like do a high spot here and a low spot here, but now it's all pretty smooth. And tomorrow we're going to be doing some corner bead, doing our first coat, and taping. Anyways, I got stuff to do. Catch you

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