Will this be suitable as a long-term solution for this door, or should I pull out what I can and use the Great Stuff Gaps & Cracks... DoItYourself.com Great Stuff Pro™ Window & Door Polyurethane Foam Sealant Description. Great Stuff Pro™ Window & Door Polyurethane Foam Sealant* is a one component, minimal expanding, low pressure-build,* DuPont Show all Great Stuff Gaps & Cracks is a general-purpose sealant designed for rigid areas where high expansion is an advantage, such as attic penetrations, HVAC ductwork, and plumbing or wiring holes. It expands up to 1 inch and dries into a hard, rigid structure. Great Stuff Window & Door is specifically formulated for the "rough opening" around windows and doors. Because it is

Mark left the store with both cans, his mission clear.

If you have a massive gap (over 1.5 inches) around a door frame, do not use either can. Buy (gun-grade foam) with a dispensing gun. It gives you precise flow control and less waste. But for the average homeowner—stick to the blue can for windows, the red can for everything else.

That afternoon, he went to work. He treated his front door and the living room window frames with the foam. He watched carefully as it expanded, filling the voids gently. An hour later, he checked the door—it swung open and shut with a satisfying click. No bowing. No jamming.