It depends on your project and timeline. Here’s a quick guide:

• Embedding tape/seams: All‑purpose compound works for most jobs. For faster turnaround, a setting‑type powder (often labeled 20/45/90) can set quicker.
• Finishing coats: Lightweight or topping compounds can be easier to sand and feather.
• Small holes/dings: Spackling or a patch kit is convenient for quick touch‑ups.
• Dust concerns: Dust‑control ready‑mix can help keep cleanup simpler.
• Convenience vs. control: Ready‑mixed is grab‑and‑go; powder offers adjustable consistency and set times.

Always follow the label for mixing, drying, and sanding. You can shop pre‑mixed and setting‑type options online or for store pickup at Walmart.

They’re usually the same thing. “Drywall mud” is the common nickname for joint compound used to tape seams, cover screws, and finish walls. You’ll see it in two main forms:

• Ready‑mixed: Comes pre‑blended in pails for convenience.
• Setting‑type powder: Mix with water; sets by chemical reaction and is labeled with approximate set times (e.g., 20/45/90 minutes).

Spackling, by contrast, is typically thicker and intended for small repairs, not full seam finishing. Many DIYers bed tape with all‑purpose or setting‑type, then switch to a lightweight compound for final coats. Choose based on your task and follow the product’s directions for best results.

1. Prep: Sink fasteners slightly below the surface and remove dust.
2. Bed the tape: Apply a thin coat of compound along seams, press in tape, then skim a light coat over it. Cover screw heads.
3. Second coat: After full dry, apply a wider pass over seams and fasteners.
4. Third coat: Feather edges even wider for a smooth blend.
5. Dry and sand: Let each coat dry per the label. Sand lightly; consider dust‑control compounds and wear appropriate protection when sanding.
6. Clean and paint: Wipe dust. Many users prime repaired areas before painting for a uniform finish.

Work in thin coats and follow product instructions—this can help reduce sanding and improve results.

Some folks add a tiny amount of dish soap as a jobsite hack to make mud feel smoother. However, manufacturers generally don’t recommend unapproved additives, since they can change adhesion, drying, or paint compatibility.

Safer ways to improve spreadability include:

• Mix thoroughly: Stir well; let ready‑mix rest, then re‑stir.
• Adjust within the label: If allowed, add a small amount of clean water only.
• Choose the right type: Lightweight finishing compounds can sand and feather more easily.
• Keep tools clean: Clean knives and pans help reduce drag and bubbles.

Always follow the product’s directions for mixing and use.

Timing varies by product, coat thickness, temperature, and humidity.

• Setting‑type powders: They set in approximate times shown on the bag (e.g., 20/45/90 minutes). Sand when fully set and firm, not just surface‑dry.
• Ready‑mixed compounds: These dry by evaporation and often need several hours or overnight between coats, especially if applied thick.
• Indicators: Some patching compounds include a color‑change indicator that helps signal dry time.

Before sanding, confirm the mud is uniformly dry and not cool to the touch. For painting, many users apply a primer over repaired areas to promote an even sheen. Always check and follow the label’s directions for dry times.