FILFOAMis resistant to all weather conditions, and hardens in 2 to 4 hours in wet conditions. After hardening, excess FILFOAM can be cut away, cleaned and painted. Itis a multi-purpose polyurethane foam that can be used for filling around door and window frames, insulating hot and cold water pipes, sealing and general filling or gaps and cracks. FILFOAM bonds to most building materials