4 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing, Filling Voids, and Insulation (Quart Kit): Amazon.com: Industrial & Scientific
Froth-Pak Low GWP 210 Insulation Foam Kit 484 oz Spray Gun Indoor/Outdoor Spray Foam Insulation in the Spray Foam Insulation department at Lowes.com
Vega Bond V200 Closed Cell Spray Foam Insulation Kit. 2 Part Foam Sealant 200BF - Walmart.com