For very large gaps (wider than 1/4 inch), insert a foam backer rod into the space first, then apply caulk over it. This prevents the caulk from sagging.
Need a visual? Watch our 2-minute video below. (Placeholder for video link) reseal window
Using a putty knife or specialized scraper, carefully remove every bit of the old, cracked caulk. Applying new caulk over old caulk is a common mistake that leads to premature failure because the new layer won't bond properly. 2. Clean the Surface For very large gaps (wider than 1/4 inch),
Hold the gun at a 45-degree angle and apply steady pressure to the trigger. Move the gun smoothly along the gap in one continuous motion. It’s better to apply slightly too much than too little. 5. Tool the Joint Watch our 2-minute video below
The most critical step for a long-lasting seal is cleanliness. Wipe down the area with rubbing alcohol or a mild detergent to remove dust, grease, and debris. Ensure the area is completely dry before proceeding. 3. Prepare the Caulk Gun
Many window frames have small holes at the bottom to allow moisture to escape. Never caulk these shut.