Spray Foam Expansion & Thermal Simulator Physics Lab v1.6

Thermal resistance (R-Value) prevents heat transfer across the wall framing envelope. Closed-cell formulation provides high density and gas retention for higher R-value per inch, whereas open-cell relies on trapped ambient air.

Sound Transmission Class (STC) rating measures airborne sound attenuation. Flexible open-cell matrix absorbs acoustic vibration effectively, converting acoustic kinetic energy into micro-heat within open cell walls.

Open-Cell STC Rating: ~45 dB (High Dampening) | Closed-Cell STC: ~38 dB

Polyurethane foam forms from an exothermic reaction between Isocyanate (Side A) and Polyol Resin (Side B) with liquid blowing agents creating expanding microscopic CO₂ bubble cells.