(A) Great StuffTM Pro Window & Door Gun Foam
Minimal expanding, single-component, low-pressure formulation and flexible polyurethane foam sealant. Great tuff Pro Window & Door foam sealant is exclusively formulated to air-seal the gap between a window or door frame and its rough opening. It expands only enough to generate an effective seal, and makes window and door systems more energy efficient. Proven not to bow windows or doors. Conforms to ASTM and AAMA standards. UL classified—flame spread 10 and smoke developed 20.