GREAT STUFF PRO™ Window & Door Closed-cell, Insulating Foam Sealant creates an air tight seal by expanding between window and door frame and the rough opening. The special low expansion formula does not distort or bow window and door frames when applied properly.

Is great stuff closed or open cell?

Canned foam like GREAT STUFF™ is a closed-cell foam that comes in “single-component” form. … Even though it’s more expensive to install than open-cell foam, closed-cell foam is often preferred for home insulation projects because it offers higher R-value — between R-6 and R-7.1 per in.

Is great stuff Fire Block closed cell?

FIRE-RATED: GREAT STUFF PRO has been evaluated by ASTM E 814* in wood frame pipe penetrations. … GREAT STUFF PRO is closed-cell foam. It forms a water-resistant outer skin when cured. Bonds to wood, drywall, metal, masonry, glass and most plastics.