THIS ITEM IS HAZ-MAT - MAY SHIP VIA FREIGHT Dow Froth Pak™ 620 Spray Foam Kit FROTH-PAK™ Foam Sealant is a two-component, quick-cure polyurethane foam that fills cavities, penetrations and cracks. FROTH-PAK™ Foam Sealant is chemically cured foam, significantly reducing curing time. It dispenses, expands and becomes tack-free in seconds. The product will skin over in 30-40 seconds and will cure in minutes. Operating The operating temperature for this kit is between 60°F - 80°F for both the ambient (surrounding) temperature and the surface temperature of the material you are applying it to. Failure to use the kit within the recommended operating temperature range may cause your kit to dispense improperly. If stored in a cold climate, you MUST warm the kit to the recommended temperature before using it. Make sure you carefully read the instructions before using this kit. *This product ships directly from Dow and can only ship to business addresses*