Sound Barrier Insulating Spray Foam Insulation Kit Number of Components 2 Size 26.4 lb Container Type Two Cylinders Indoor Outdoor Color Cream Insulation Value R-4.3 Expansion Ratio 0.334 Coverage 20.83 cu ft 250 Board ft Begins to Harden 30 to 45 sec Full Cure 1 hr Application Temp Range 60 Degrees to 90 Degrees F Performance Temp Range 60 Degrees to 90 Degrees F Flash Point 390 Degrees F Specific Gravity 1.1