: "Fast Rise" foam is best for open surfaces like walls, while "Slow Rise" is designed to fill closed cavities (like behind drywall) without bursting the wall. Essential Gear & Safety
: For residential use, ensure the kit is "Class A" or "Class 1" fire-rated to meet local building codes.
⚠️ : You must use a respirator, goggles, and gloves. Most kits include a basic safety kit , but upgrading to a high-quality respirator is recommended. Go to product viewer dialog for this item.
