Cracks Link: Great Stuff Window And Door Vs Gaps And

Both products are made by DuPont (formerly Dow), and both are polyurethane-based expanding foams. However, they are formulated for fundamentally different jobs. Here is the hard truth about which one belongs in your tool belt.

Mark looked at his front door. He definitely didn't want to replace the frame.

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. great stuff window and door vs gaps and cracks

That night, the wind howled outside just as it had the day before. But inside Mark’s living room, the air was still. The coffee stayed hot, and the drafts were gone.

The foam that saves you $5 today (by buying the red can) will cost you $500 to fix a bowed window tomorrow. Buy the right tool for the job. Both products are made by DuPont (formerly Dow),

"Just trying to keep the heat in," Mark said. "I’ve got a drafty front door and a bunch of weird little holes in the attic. I don’t know which one of these to buy."

"I always get these mixed up," Mark admitted. "Foam is foam, right?" Mark looked at his front door

Mark stood in the insulation aisle, overwhelmed by the wall of spray foam and caulk. A store employee, a seasoned DIY veteran named Sarah, found him staring blankly at two cans.

"But what if I used it on my door?" Mark asked.

Sarah winced. "Then you’d likely be planing down your door frame or replacing the window. It expands with too much force. It’s great for stopping pests and drafts in static construction, but it has zero give."