Dry time depends on the type of filler, how deep the repair is, and room conditions.

• Lightweight spackle/wall repair paste: Thin applications for nail holes often dry within an hour; thicker fills can take longer.
• Wood filler/putty: Some set quickly, while deeper repairs may need a few hours before sanding.
• Epoxy putty: Usually firms up within about an hour and continues curing after that.

Temperature and humidity can slow things down. Many products recommend waiting until the patch is fully dry and firm before sanding, priming, and painting; full cure times can be longer. Some fillers include a color-change indicator to suggest when they’re ready. Always follow the product’s instructions for best results.

It helps to match the filler to the surface and hole size.

• Drywall/plaster walls: Use spackling compound or wall repair paste for small nail holes and dents. For larger openings, consider a self-adhesive patch plus spackle or patching plaster.
• Wood: Choose a wood filler or wood putty. If you plan to stain, look for a stainable option; for exterior repairs, consider a water-resistant, paintable formula.
• Multi-surface repairs: Epoxy or two-part putties can bond to metal, tile, and some plastics and can be shaped.
• Temporary hanging: Mounting putty is for lightweight items, not for permanent repairs.

Check labels for interior/exterior use, paintability, and drying times so the finish matches your project.

For tiny nail or screw holes, a simple approach can work well.

1. Prep: Wipe away dust. Lightly widen frayed edges if needed so the filler grips clean material.
2. Apply: Using a putty knife, press a small amount of spackle or wall repair paste into the hole and smooth it flush.
3. Dry: Let it dry per the product’s instructions. Some fillers shrink; add a second thin layer if needed.
4. Finish: Sand lightly until smooth, then prime and paint to match.

For deeper or slightly larger spots, a couple of thin layers may perform better than one thick layer. When sanding, avoid breathing dust and work in a ventilated space. Results can vary based on surface and conditions.

Most folks call it spackling compound (often just “spackle”). You’ll also see similar products labeled wall repair paste or patching plaster.

• Spackling compound/wall repair paste: Great for small holes and dents in drywall or plaster. Dries white, sands easily, and takes paint.
• Patching plaster: A harder-setting option often used on plaster surfaces or for more durable repairs.
• Joint compound: Commonly used for taping drywall seams; it can also fill larger areas when paired with a patch.

All are designed to be sanded and painted, but drying times and hardness vary. Check the label to match the product to your wall type and the size of the repair.

It depends on the product and the size of the opening.

• Tiny nail holes and small screw holes: Spackling compound or small-hole filler is typically sufficient.
• Medium repairs: Deeper dents and larger gaps may perform better with a couple of thin layers or a fiber-reinforced filler.
• Larger holes: A self-adhesive mesh or metal patch paired with spackle/patching plaster adds support before finishing.
• Very large or irregular openings: You may need a backing support or a cut-in piece of drywall, then finish with compound.

Always follow the product’s guidance on recommended hole sizes, build up thin layers, and allow proper drying between steps to help the repair blend in.