Professional Use. Large openings that let air into a home rob homeowners of money, energy efficiency and comfort. FROTH-PAK Foam Sealant is designed to fill gaps and penetrations greater than 2” quickly and affordably, helping eliminate unwanted airflow throughout a home. Review all instructions and (Material) Safety Data Sheet before use. Always wear appropriate PPE. Signature Required for delivery; special handling is needed for returns due to the nature of this product.