Perfect Air Sealing: How Todol Foam Outperforms Around Windows and Doors

When it comes to foaming around windows and doors, Todol polyurethane foam is a standout choice for professionals and DIYers alike. It’s not just about filling gaps—it’s about creating an airtight seal that prevents drafts and improves energy efficiency. Todol foam has excellent adhesion qualities, ensuring it bonds securely to a variety of materials. The key here isn’t insulation but air sealing. Unlike insulation, where more is usually better, air sealing requires precision. The goal is to match the thermal resistance (R-factor) of the window or door. Most windows have an R-factor of 2 or 3, and Todol foam, with an R-factor of 6 per inch, does the job beautifully with just ¾ of an inch of foam.

To get the best results, place the foam as close to the exterior side of the window or door frame as possible. Follow these simple steps for application: *** Shake the can thoroughly to mix the contents *** Ensure the foam can is between 60–80°F for optimal performance *** Practice dispensing beads of foam on scrap material to get comfortable with the application *** Adjust the set screw on your foam gun to control bead size and leave it set once you’ve got the perfect flow.

Before foaming, ensure the surface around the window is clean and dry to maximize adhesion. When you’re ready to foam, start from the top and work your way down, inserting the foam gun barrel into the void and dispensing slowly. For small gaps, use Todol’s foam reducer or the green needle attachment for precise application. Once foaming is complete, allow the foam to cure properly. Afterward, inspect the window or door for any missed spots and touch up as needed.

Todol polyurethane foam’s superior quality and attention to detail make it the best choice for sealing around windows and doors. Its excellent adhesion, R-factor compatibility, and ease of use ensure that your projects are done right the first time, every time.