ELI5: Explain Like I'm 5

Taping knife

A taping knife is a tool used to spread a special type of paste called joint compound onto the walls or ceilings of a room that is being prepared for painting. The joint compound fills in any cracks or holes so that the surface is smooth and ready for paint.

The taping knife has a long, flat blade with a curved tip that is slightly flexible. This helps to spread the joint compound evenly and smoothly across the wall. The handle of the knife is made so that you can grip it easily and comfortably while you work.

When using a taping knife, it's important to start at the top of the wall and work your way down. You scoop some joint compound onto the blade and hold the knife at a slight angle so that the compound can be worked onto the wall. You want to be careful not to apply too much pressure, as this can create ridges or bumps that will need to be sanded down later.

When you've finished spreading the joint compound, you'll need to let it dry completely. This can take anywhere from a few hours to overnight, depending on the amount of joint compound that was applied. Once the compound is dried, it's ready to be sanded down and painted over.

Overall, the taping knife is an important tool in the process of preparing a room for painting, making it look smooth and polished.