Learn how to seal gaps, cracks, and crevices with a smooth bead of caulk.

Caulk is a commonly used product in manyhome renovation projects.

When applied in a smooth bead, it forms a watertight seal in narrow gaps and crevices.

Person caulking a baseboard with a caulk gun

Credit:Brie Goldman

Use this guide to learn more about caulk and how to use a caulking gun.

Unless you plan to frequently use a caulking gun, a manual caulking gun is typically sufficient forDIY projects.

This can also help keep your bead of caulk straight when you apply it with the caulking gun.

Person taping a baseboard with painters tape

Credit:Brie Goldman

If you want a thicker bead of caulk, cut a 45-degree angle slightly lower down the tube tip.

Inside the caulk tube tip is a seal that needs to be punctured to release the caulk.

Load the Caulking Gun

Load the caulking gun by pressing the release trigger located on the handle.

Person cutting the tube tip of a caulk gun

Credit:Brie Goldman

attempt to keep your movement along the line as steady and consistent as possible.

Tooling is simply the process of smoothing the bead of caulk into the gap or crevice.

Some people may give a shot to simply apply new caulk over existing caulk, but this rarely works.

Person loading a caulk gun

Credit:Brie Goldman

Removing caulk isn’t a difficult task, but it is necessary.

Simply use a utility knife or putty knife to separate the old caulk from where it is currently installed.

Person applying caulk with a caulk gun

Credit:Brie Goldman

Person smoothing caulk with tool

Credit:Brie Goldman